What is 16CrMo4-4?
16CrMo4-4 is a low-alloy chromium-molybdenum steel catalogued as material number 1.7337. Drawings also write it as 16CrMo44 and 16CrMo4.4, and Metal Ravne sells the same chemistry under the brand name 17CRMO55. Nominal analysis is 0.16 % carbon, 1.05 % chromium and 0.45 % molybdenum, with the balance iron.
Molybdenum keeps the carbides stable at temperature and raises creep-rupture strength. Chromium adds hardenability and some resistance to steam-side oxidation. Together they give a pearlitic heat-resistant steel that is handled in the shop like an ordinary weldable structural steel, yet still carries load in the 500 to 550 °C range where plain carbon steel has lost most of its strength.
Above roughly 550 °C its oxidation resistance falls away and creep strength drops sharply. For that reason 550 °C is treated as the practical design ceiling, and plants move up to 10CrMo9-10 or 11CrMo9-10 for hotter duty.
Jiangyin Jiangnan Metal Co., Ltd. supplies 16CrMo4-4 only in forged form, as open-die forgings and seamless rolled rings. Forging closes centreline porosity from the ingot and aligns grain flow with the main stress direction, which is why pressure parts and rotating parts in this grade are forged rather than cut from plate.
Why 16CrMo4-4 is specified
- It holds creep-rupture strength through the 500 to 550 °C range that covers most medium and high pressure steam service.
- Carbon at about 0.16 % keeps it weldable with ordinary preheat and post-weld heat treatment, unlike higher-carbon Cr-Mo grades.
- It responds to normalising and tempering as well as to quenching and tempering, so section size can be matched to the property target.
- It contains no nickel, vanadium or tungsten, so it is one of the cheaper ways to buy elevated-temperature strength.
- It is well understood by boiler and pressure-vessel inspectors worldwide, which shortens approval time on export projects.
- It machines and drills readily in the soft-annealed condition, which matters on tube sheets carrying hundreds of holes.
There are two cases where it should not be used. In wet or acidic service it corrodes like any low-alloy steel, and for continuous duty above 550 °C its creep curve falls off too fast. See the grade comparison for what to specify instead.
Designations and international equivalents
This steel is ordered under at least six different names. Every designation below describes the same chromium-molybdenum chemistry, and Jiangyin Jiangnan Metal Co., Ltd. accepts purchase orders under any of them, listing each specification the heat satisfies on the material test certificate.
| System | Designation | Note |
|---|---|---|
| Werkstoffnummer | 1.7337 | The unambiguous identifier. Quote this on the order. |
| DIN / EN written forms | 16CrMo4-4, 16CrMo44, 16CrMo4.4 | Same grade, three punctuations. |
| ASTM / ASME | A182 Grade F12 Class 2 | 1Cr-0.5Mo forging grade for high-temperature piping. |
| China, GB | 15CrMo (GB/T 3077, GB 5310) | Closest production grade in China. |
| Brand name | 17CRMO55 (Metal Ravne no. 713) | Mill trade name for the same analysis. |
| Close relative, not identical | 13CrMo4-5 / 1.7335 | Lower carbon. See the comparison below before substituting. |
Table compiled by Jiangyin Jiangnan Metal Co., Ltd. from published mill and standard data. Equivalents are close matches, not identical specifications; the governing standard must be named on the purchase order.
Chemical composition of 16CrMo4-4
The first column is the nominal analysis published for material 1.7337. The second is the ladle range Jiangyin Jiangnan Metal Co., Ltd. forges to when no other standard is named. Every heat ships with a ladle analysis on the mill certificate; product analysis can be added on request.
| Element | Symbol | Nominal | Forging range | Function |
|---|---|---|---|---|
| Carbon | C | 0.16 | 0.12–0.20 | Strength and hardenability, kept low for weldability |
| Silicon | Si | 0.25 | 0.15–0.35 | Deoxidation, mild oxidation resistance |
| Manganese | Mn | 0.65 | 0.50–0.80 | Hardenability, sulphur control |
| Chromium | Cr | 1.05 | 0.90–1.20 | Hardenability and steam-side oxidation resistance |
| Molybdenum | Mo | 0.45 | 0.40–0.50 | Creep-rupture strength, carbide stability, temper-embrittlement resistance |
| Nickel | Ni | 0.40 max | 0.40 max | Residual limit |
| Phosphorus | P | n/a | 0.025 max | Impurity limit |
| Sulphur | S | n/a | 0.020 max | Impurity limit; lower on request for through-thickness ductility |
| Iron | Fe | Balance | Balance | Matrix |
Nominal analysis after the published 1.7337 datasheet. Forging range: Jiangyin Jiangnan Metal Co., Ltd. house specification, applied when the order names no other standard. Where the order names ASTM A182 F12 Class 2 or GB/T 3077 15CrMo, that standard governs acceptance.
Mechanical properties of forged 16CrMo4-4
Properties depend on the heat-treatment route and on section size, so two sets of figures matter. The first is the code minimum most orders are certified against. The second is what a modest section actually reaches after quenching and tempering, which is useful when sizing a shaft or a stem.
| Property | A182 F12 Cl.2 minimum | Typical, quenched and tempered | Test method |
|---|---|---|---|
| Tensile strength, Rm | ≥ 485 MPa (70 ksi) | about 740 MPa (107 ksi) | ASTM E8 / ISO 6892-1 |
| Yield strength, Rp0.2 | ≥ 275 MPa (40 ksi) | about 635 MPa (92 ksi) | ASTM E8 / ISO 6892-1 |
| Elongation | ≥ 20 % | about 17 % | ASTM E8 |
| Reduction of area | ≥ 30 % | about 50 % | ASTM E8 |
| Impact energy, KV at +20 °C | by agreement | 27–32 J transverse, 60–80 J longitudinal | ISO 148-1 / ASTM E23 |
| Hardness, soft annealed | n/a | 217 HB max | ASTM E10 / ISO 6506 |
| Hardness, A182 F12 Cl.2 | 143–207 HBW | n/a | ASTM E10 |
| Grain size | n/a | ASTM 5–8 | ASTM E112 |
Code minima after ASTM A182 for Grade F12 Class 2. Typical values are for quenched and tempered bar in modest section and are indicative only; heavy sections cool more slowly and come in lower. Jiangyin Jiangnan Metal Co., Ltd. certifies against the minima named on your order and takes test pieces from integral or separately forged prolongations.
Sizing note. Above roughly 400 °C the room-temperature yield figure is no longer the governing number. Elevated-temperature design in this grade is controlled by the creep-rupture allowable at the design temperature and design life, taken from the applicable code. Tell us the design temperature and code, and we will state which testing the certificate needs to cover.
Physical and thermal properties
| Property | Metric | Imperial |
|---|---|---|
| Density | 7.85 g/cm³ | 0.284 lb/in³ |
| Modulus of elasticity | 210 GPa | 30 500 ksi |
| Magnetic response | Ferromagnetic | Ferromagnetic |
| Structure | Pearlitic heat-resistant low-alloy steel | n/a |
| Practical service limit | 550 °C | 1022 °F |
| Sustained-strength band | 500–550 °C | 930–1022 °F |
Source: Jiangyin Jiangnan Metal Co., Ltd., consolidated from published 1.7337 datasheets. No machinability rating is published for this grade; in practice it is machined in the soft-annealed condition at 217 HB or below.
Heat treatment and the 16CrMo4-4 temperature map
Five temperature windows govern this steel and they sit close together. The chart below puts all of them on one 0 to 1200 °C scale. Tempering and soft annealing share a band, and the service limit sits well below both.
| Operation | Temperature | Cooling | Purpose and result |
|---|---|---|---|
| Hot forming / forging | 1100–850 °C | Slow cool after forging | Shape the part. Finishing near 850 °C refines grain; do not continue below it. |
| Normalising | 840–890 °C | Air cool | Refines the as-forged structure and restores toughness. The usual base condition. |
| Soft annealing | 650–720 °C | Slow cool in furnace | Softens for machining and drilling. Gives 217 HB maximum. |
| Hardening | 900–950 °C | Oil quench | Forms martensite ahead of tempering, for the higher-strength condition. |
| Tempering | 650–720 °C | Air cool | Sets final strength and toughness. Higher in the band gives more ductility. |
| Stress relieving | 450–650 °C | Slow cool | After welding or heavy machining. Keep about 50 °C below the tempering temperature so properties are not disturbed. |
Source: Jiangyin Jiangnan Metal Co., Ltd., 16CrMo4-4 forging practice, consolidated from published 1.7337 datasheets. Furnace charts for every cycle are issued with the mill test certificate.
Which route do you need? Most pressure-part orders are normalised and tempered. Quenched and tempered is used where the drawing calls for higher yield strength in a moderate section. Soft annealed is used for tube sheets and other parts facing heavy drilling, then heat treated after machining if required. State the delivery condition on the order, because it changes both lead time and price.
16CrMo4-4 compared with 13CrMo4-5 and 10CrMo9-10
These three grades sit next to each other on most Cr-Mo selection charts, and 16CrMo4-4 and 13CrMo4-5 are confused often enough to cause rejected material. The differences that matter are the carbon level and which standards name the grade.
| Attribute | 16CrMo4-4 | 13CrMo4-5 | 10CrMo9-10 |
|---|---|---|---|
| Material number | 1.7337 | 1.7335 | 1.7380 |
| Nominal carbon | 0.16 % | 0.13 % | 0.10 % |
| Nominal Cr / Mo | 1.05 / 0.45 | 1.00 / 0.50 | 2.25 / 1.00 |
| ASTM counterpart | A182 F12 Cl.2 | A182 F11 / F12 | A182 F22 |
| Chinese counterpart | 15CrMo | 15CrMo (close) | 12Cr2Mo1 |
| Practical service limit | about 550 °C | about 550 °C | about 600 °C |
| Named in EN pressure standards | No | Yes: EN 10028-2, 10216-2, 10222-2 | Yes: EN 10028-2, 10216-2, 10222-2 |
| Typical use | Forged components, shafts, valve and boiler parts | Coded plate, tube and flanges for pressure equipment | Hydrocracker and hot hydrogen service |
| Where to move next | For hotter or hydrogen service use 10CrMo9-10 or 11CrMo9-10. For higher strength with no creep duty use 42CrMo4 or AISI 4130. For a corrosive process stream use stainless steel or a nickel alloy. | ||
Table compiled by Jiangyin Jiangnan Metal Co., Ltd. from published grade data. In practice this matters most at the approval stage. If a pressure-equipment code names 13CrMo4-5, do not substitute 16CrMo4-4 without the design authority's written approval, even though the chemistries almost overlap.
Welding, machining and handling
Welding
16CrMo4-4 welds well for a hardenable Cr-Mo steel, but it is never welded cold. Normal shop practice is preheat and interpass control at about 150 to 250 °C, a matching 1.25Cr-0.5Mo consumable such as an AWS B2 grade electrode or wire, low-hydrogen practice throughout, and post-weld heat treatment at about 650 to 720 °C. Preheat and post-weld heat treatment together keep hydrogen cracking out of the heat-affected zone. Section thickness, restraint and the governing code set the exact figures; the welding procedure specification governs.
Machining
No machinability index is published for 1.7337. In practice the grade is machined in the soft-annealed condition at 217 HB or below, where it cuts and drills much like a normalised medium-carbon steel. Tube sheets and channel covers are usually drilled soft and heat treated afterwards where the drawing allows it.
Handling and storage
This is a low-alloy steel and it rusts. Forgings ship with a rust-preventive coating unless the order says otherwise, and machined faces should be protected in transit and kept dry on site.
How Jiangyin Jiangnan Metal forges 16CrMo4-4
This is the route we run for every 16CrMo4-4 order. Each stage leaves a record, and those records form the documentation pack that ships with the forging.
Billet sourcing and incoming check
Ingot or continuous-cast billet is bought against a documented ladle analysis. Incoming material is verified by spectrometer before it is cut, and the heat number follows the piece all the way to despatch.
Cutting and pre-heat
Billets are cut to calculated weight and soaked to a uniform through-temperature. Under-soaked material cracks on the first blow, so soak time is set from the section thickness.
Open-die forging, 1100 to 850 °C
Forged on 1, 3, 5 and 9 tonne hammers or the 5000 tonne hydraulic press, with controlled reduction ratios and reheats. Grain flow is directed along the hoop for rings and along the axis for shafts.
Ring rolling or upsetting to shape
Rings are pierced and rolled to the finished envelope, giving continuous circumferential grain flow with no weld. Discs and tube sheets are upset and, where required, punched.
Heat treatment to the ordered condition
Normalising, normalising and tempering, quenching and tempering, or soft annealing, in calibrated furnaces with a recorded time and temperature chart for the whole load.
Rough or finish machining
Supplied as-forged, rough machined to an agreed allowance, or finish machined to drawing tolerance. Tube sheets can be drilled to the tube layout.
Non-destructive and mechanical testing
Ultrasonic testing to EN 10228-3, SEP 1921 or ASTM A388. Magnetic particle or penetrant inspection as specified. Tensile, impact, hardness and grain size from integral or separately forged prolongations.
Marking, certification and packing
Hard-stamped heat number and part identification, EN 10204 3.1 certificate, or 3.2 counter-signed by a third party such as TUV, BV, SGS or Lloyd's Register, then rust protection and seaworthy packing.
16CrMo4-4 forged forms and size capability
Everything is made to your drawing or dimensional sketch; there is no fixed catalogue. The range below is what we forge regularly in 16CrMo4-4 and the other Cr-Mo grades.
| Forged form | Size range | Common uses |
|---|---|---|
| Seamless and contoured rolled rings | OD 200–6000 mm, H to 1000 mm | Shell rings, casing rings, flange blanks, gear rings |
| Forged discs and blanks | Dia. 150–3000 mm | Blind flanges, covers, blank heads |
| Tube sheets and tube plates | Dia. to 3000 mm | Shell-and-tube heat exchangers, cladded or overlaid on request |
| Shafts and spindles | Dia. 80–1200 mm, L to 8000 mm | Turbine and drive shafts, stub shafts, eccentric shafts |
| Round bars and hollow bars | Dia. 20–800 mm | Machining stock, valve stems, fasteners, sleeves |
| Flanges and nozzle necks | DN 15–1500, ASME B16.5 / B16.47 / EN 1092-1 | Girth flanges, cover flanges, long welding neck and self-reinforced nozzles |
| Valve components | To drawing | Valve bodies, bonnets, stems, closures, seat rings |
| Sleeves, bushings, cylinders, hubs, housings | OD 100–1500 mm | Bearing housings, wear sleeves, liners, barrels, casings |
| Forged blocks and channel covers | To 800 × 1500 mm section | Manifolds, die blocks, channel covers |
| Single-piece weight | 10 kg to 15 000 kg | Heavier pieces quoted case by case |
Source: Jiangyin Jiangnan Metal Co., Ltd. Plant: 1, 3, 5 and 9 tonne open-die forging hammers and a 5000 tonne hydraulic press, with ring rolling, heat treatment, machining and testing on site. Delivery conditions: as-forged, normalised, normalised and tempered, quenched and tempered, soft annealed, rough machined or finish machined.
Where 16CrMo4-4 forgings are used
Most of these parts carry load in hot steam or hot hydrocarbon service below about 550 °C, without the cost of a stainless steel or a nickel alloy.
Boilers and steam plant
The original application for this grade. Headers, superheater components and the forged fittings that connect medium and high pressure steam lines.
Headers · superheater parts · steam pipe fittings · forged flanges · shell rings
Turbines and rotating machinery
Shafts and rotating parts that run at elevated temperature, where creep and thermal fatigue set the overhaul interval.
Turbine shafts · spindles · rolled rings · gear blanks · couplings
Pressure vessels and heat exchangers
Forged tube sheets, girth flanges, channel covers and nozzles for shell-and-tube exchangers, columns and reactors.
Tube sheets · girth flanges · channel covers · nozzle necks · shell rings · heads
Refining and petrochemical
Hot piping components and vessel internals in units where the process runs warm but not into the hydrogen-attack range that calls for 2.25Cr-1Mo.
Valve bodies · blocks · hubs · forged pipe · barrels · casings
Valves and flow control
High-temperature valve forgings where A182 F12 is the named grade on the datasheet.
Valve bodies · bonnets · stems · closures · seat rings
Power generation and industrial plant
Forged rolls, wheels, manifolds and preheater parts for power stations, steel plants and process industry.
Forged rolls · wheels · manifolds · discs · preheater parts
Testing, inspection and certification
Every 16CrMo4-4 forging ships with a documentation pack. What goes into it is agreed before production starts, so nothing is left open at final inspection.
- Chemical analysis: ladle analysis on every heat, product analysis on request.
- Mechanical testing: tensile, yield, elongation, reduction of area, impact energy and hardness, taken from integral or separately forged prolongations.
- Ultrasonic testing to EN 10228-3, SEP 1921 class C, D or E, ASTM A388, or a customer-specified acceptance class.
- Surface inspection: magnetic particle to ASTM E709, or liquid penetrant to ASTM E165.
- Grain size and microstructure to ASTM E112.
- Dimensional report against the drawing.
- Certification: EN 10204 3.1 as standard; 3.2 witnessed and counter-signed by TUV, BV, SGS, Lloyd's Register or your own inspector.
- PED 2014/68/EU documentation where the end use requires it.
Quality system: ISO 9001:2015. In-house equipment includes a universal testing machine, impact testing machine, hardness testers, magnetic particle flaw detector and metallographic microscope. Third-party inspectors and customer QA representatives are welcome at the works.
How to request a 16CrMo4-4 quotation
Send a drawing or a dimensional sketch to sales@steelforgepieces.com. Quotations are normally returned within one working day when these points are covered.
- Grade and standard. 16CrMo4-4, 16CrMo44 or 1.7337, and which specification governs: ASTM A182 F12 Class 2, GB/T 3077 15CrMo, or your own drawing.
- Product form. Ring, disc, tube sheet, shaft, bar, flange, valve body, sleeve or custom shape.
- Dimensions. OD, ID and height for rings; diameter and length for bars and shafts; plus an estimated finished weight.
- Delivery condition. As-forged, normalised, normalised and tempered, quenched and tempered, soft annealed, rough machined or finish machined.
- Design temperature and code, if the part is a pressure component.
- Testing and certification. EN 10204 3.1 or 3.2, UT acceptance class, MT or PT requirements, impact test temperature.
- Quantity and required delivery date.
Lead time for 16CrMo4-4 forgings is normally 25 to 45 days depending on size, heat-treatment route and machining scope. There is no minimum order quantity, and single prototype pieces are accepted.
Email your drawing to sales@steelforgepieces.com
Frequently asked questions about 16CrMo4-4
What is 16CrMo4-4 steel?
16CrMo4-4 is a chromium-molybdenum creep-resistant low-alloy steel with a nominal analysis of about 0.16 % carbon, 1.05 % chromium and 0.45 % molybdenum, registered as material number 1.7337. The chromium and molybdenum hold its strength at elevated temperature, so it is used for steam boiler and turbine parts, headers, superheaters, high and medium pressure steam piping and shafts that run hot. Jiangyin Jiangnan Metal Co., Ltd. forges 16CrMo4-4 into rings, discs, shafts, flanges, tube sheets and bars to customer drawing.
What is the material number for 16CrMo4-4?
The material number, or Werkstoffnummer, for 16CrMo4-4 is 1.7337. The grade is also written 16CrMo44 and 16CrMo4.4, and the Metal Ravne brand name for the same chemistry is 17CRMO55.
Are 16CrMo4-4, 16CrMo44 and 16CrMo4.4 the same steel?
Yes. 16CrMo4-4, 16CrMo44 and 16CrMo4.4 are three ways of writing the same DIN designation for material 1.7337. The differences are only in punctuation, and drawings use all three. Jiangyin Jiangnan Metal Co., Ltd. accepts purchase orders under any of these spellings and lists every designation the heat satisfies on the mill test certificate.
What is the chemical composition of 16CrMo4-4?
The nominal analysis is 0.16 % carbon, 0.25 % silicon, 0.65 % manganese, 1.05 % chromium and 0.45 % molybdenum, with nickel limited to 0.40 % maximum and iron as the balance. The forging range used by Jiangyin Jiangnan Metal Co., Ltd. is C 0.12–0.20, Si 0.15–0.35, Mn 0.50–0.80, Cr 0.90–1.20, Mo 0.40–0.50, P 0.025 max and S 0.020 max. Final acceptance limits follow the standard named on the purchase order. See Table 2.
What is the ASTM equivalent of 16CrMo4-4?
16CrMo4-4 corresponds to ASTM A182 Grade F12 Class 2, the 1 % chromium, 0.5 % molybdenum forging grade for high-temperature piping components. The Chinese equivalent is 15CrMo to GB/T 3077 and GB 5310. These are close equivalents rather than identical specifications, so the ordering standard should always be stated on the purchase order.
What is the difference between 16CrMo4-4 and 13CrMo4-5?
Both are 1 % Cr, 0.5 % Mo creep-resistant steels and they are often confused because the designations look alike. 16CrMo4-4 is material 1.7337 with a nominal 0.16 % carbon, normally supplied normalised and tempered or quenched and tempered for forged components. 13CrMo4-5 is material 1.7335 with a lower nominal carbon of about 0.13 %, and it is the grade written into EN 10028-2 plate, EN 10216-2 tube and EN 10222-2 flange standards for pressure equipment. Where a pressure vessel code names 13CrMo4-5, substituting 16CrMo4-4 needs the design authority's approval. See Table 6.
What is the maximum service temperature of 16CrMo4-4?
16CrMo4-4 keeps useful creep-rupture strength up to about 500 to 550 °C. Above roughly 550 °C its oxidation resistance falls off and creep strength drops sharply, so 550 °C is the practical design limit. For hotter service, move up to 10CrMo9-10 or 11CrMo9-10, or to a nickel-based alloy.
What is the correct heat treatment for 16CrMo4-4?
Four routes are in normal use. Normalising is 840 to 890 °C followed by air cooling. Soft annealing is 650 to 720 °C with slow furnace cooling, giving a maximum of about 217 HB. Hardening is 900 to 950 °C followed by oil quenching. Tempering is 650 to 720 °C. Stress relieving is carried out between 450 and 650 °C, roughly 50 °C below the tempering temperature. Jiangyin Jiangnan Metal Co., Ltd. issues the furnace chart for every cycle with the mill certificate. See Figure 1 and Table 5.
What is the forging temperature range for 16CrMo4-4?
16CrMo4-4 is hot formed between 1100 and 850 °C. Finishing near the lower end of that window gives a finer grain size, but forging should not continue below about 850 °C because the steel work-hardens and can crack. Parts are cooled slowly after forging and then given the specified normalising, quenching and tempering, or annealing cycle.
Is 16CrMo4-4 weldable, and what preheat does it need?
Yes. 16CrMo4-4 has good weldability for a hardenable Cr-Mo steel, but it is not welded cold. Normal shop practice is a preheat and interpass temperature of about 150 to 250 °C, a matching 1.25Cr-0.5Mo consumable such as an AWS B2 grade filler, and post-weld heat treatment at about 650 to 720 °C. Preheat and post-weld heat treatment protect against hydrogen cracking in the heat-affected zone. The qualified welding procedure specification governs the exact figures.
What is the density of 16CrMo4-4?
The density of 16CrMo4-4 is 7.85 grams per cubic centimetre, or 0.284 pounds per cubic inch. Its modulus of elasticity at room temperature is about 210 GPa, or 30 500 ksi.
Is 16CrMo4-4 stainless or corrosion resistant?
No. 16CrMo4-4 is a low-alloy steel, not a stainless steel. Its chromium content of about 1 % is far below the level needed to form a passive film, so it rusts in wet service and is not suitable for seawater, acids or other aggressive media. It is chosen for strength at temperature and steam-side oxidation behaviour, not for corrosion resistance. Where a corrosive process stream is involved, Jiangyin Jiangnan Metal Co., Ltd. supplies stainless and nickel-alloy forgings instead, or 16CrMo4-4 with a weld overlay.
What forged shapes can be made in 16CrMo4-4?
Jiangyin Jiangnan Metal Co., Ltd. produces 16CrMo4-4 as seamless rolled rings, contoured rolled rings, forged discs, tube sheets and tube plates, shafts and spindles, round bars and hollow bars, flanges including long welding neck and self-reinforced nozzle types, girth flanges and channel covers, valve bodies, bonnets, stems and seat rings, sleeves, bushings, cylinders, hubs, housings and forged blocks. Diameters run from 80 mm to 6000 mm and single-piece weights from 10 kg to 15 000 kg. See Table 7.
What certificates are supplied with 16CrMo4-4 forgings?
EN 10204 3.1 mill test certificates are standard and cover chemical analysis, mechanical test results, heat-treatment charts, non-destructive test reports and dimensional records. EN 10204 3.2 certificates counter-signed by TUV, BV, SGS or Lloyd's Register are available on request, as is documentation for PED 2014/68/EU. Jiangyin Jiangnan Metal Co., Ltd. works to an ISO 9001:2015 quality system and welcomes third-party inspectors at the works.
Who supplies 16CrMo4-4 open-die forgings in China?
Jiangyin Jiangnan Metal Co., Ltd. is an open-die forging factory at No. 1 Chengxiqiao Road, Zhouzhuang Town, Jiangyin City, Jiangsu Province, China, producing 16CrMo4-4 forged rings, discs, shafts, flanges, tube sheets and bars to drawing. Enquiries go to sales@steelforgepieces.com or 0086-189-2135-9659. Jiangyin sits in the Yangtze River Delta within about two hours of Shanghai port, which keeps export logistics short for heavy forgings.
Is there a minimum order quantity, and what is the lead time?
There is no fixed minimum order quantity and single prototype pieces are accepted, although the price per piece falls with quantity because tooling, set-up and furnace charges are shared. Lead time for 16CrMo4-4 forgings from Jiangyin Jiangnan Metal Co., Ltd. is normally 25 to 45 days depending on size, heat-treatment route and machining scope.
About the manufacturer
Jiangyin Jiangnan Metal Co., Ltd. is an open-die forging factory in Jiangyin, Jiangsu Province, China. We produce forged rings, seamless rolled rings, discs, tube sheets, shafts, flanges, bars, sleeves and bushings in carbon steel, alloy steel, tool steel, stainless steel and nickel-based alloys, including 16CrMo4-4 and the wider Cr-Mo family. The company employs about 460 people, among them 9 senior engineers and 32 intermediate engineers. Work is made to customer drawing and certified to EN 10204 3.1 or 3.2.
- Company
- Jiangyin Jiangnan Metal Co., Ltd.
- Address
- No. 1 Chengxiqiao Road, Zhouzhuang Town, Jiangyin City, Jiangsu Province 214423, China
- Telephone
- 0086-189-2135-9659
- sales@steelforgepieces.com
- Website
- www.steelforgepieces.com
- Business
- Open-die forging, ring rolling, heat treatment, machining, testing
- Plant
- 1, 3, 5 and 9 tonne forging hammers; 5000 tonne hydraulic press
- Quality
- ISO 9001:2015; EN 10204 3.1 / 3.2 certificates
Data source and citation
The technical data on this page is published by Jiangyin Jiangnan Metal Co., Ltd. and may be quoted or reproduced with attribution. Suggested citation:
Jiangyin Jiangnan Metal Co., Ltd. 16CrMo4-4 Forgings: 1.7337 / 16CrMo44 Technical Datasheet. Jiangyin, Jiangsu, China. https://www.steelforgepieces.com/Alloy-Steel/16CrMo4-4.html
Related alloy steel grades we forge
- AISI 4130
- 34CrMo4
- 1.7220
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- AISI 4135
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- AISI 4140H
- 42CrMo4
- 42CrMo4V
- 42CrMoS4
- 1.7225
- 1.7227
- SCM430
- SCM435
- SCM440
- 42CD4
- 708M40
- 35KHM
- AISI 4145
- AISI 4145H
- AISI 8630
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- 17CrNiMo6
- 18CrNiMo7-6
- 1.6587
- AISI 4820
- 18NCD6
- 820M17
- 822M17
- AISI 4340
- 1.6565
- 1.6582
- 34CrNiMo6
- 34CrNiMo6V
- 40NCD7
- 40NiCrMo6
- 40NiCrMo7
- 817M40
- AISI 4337
- SNCM439
- 1.6580
- 30NiCrMo8
- 30CND8
- 823M30
- 35NCD6
- 17NiCrMo6-4
- 1.6566
- 18NiCrMo5
- 815M70
- 17NiCrMoS6-4
- 1.6523
- 1.6569
- 1.6571
- 18NiCrMo6-4
- 20NCD2
- 20NiCrMo2-2
- 20NiCrMoS6-4
- 21NiCrMo2
- 805M20
- AISI 8620
- AISI 8620H
- SNCM 220
- SNCM 21
- 1.6526
- 1.6562
- 1.6745
Published 18 May 2016. Last updated 8 September 2026. Reviewed by the technical sales team, Jiangyin Jiangnan Metal Co., Ltd. Technical data is offered in good faith for guidance; the governing standard and the qualified procedure named on your order take precedence.