Nickel superalloy · Open-die forgings
NiCr22W14Mo Forgings W.Nr. 2.4733 · UNS N06230 · equivalent to Haynes® 230
NiCr22W14Mo is the DIN/EN chemical designation for a nickel-chromium-tungsten-molybdenum superalloy. It is also listed as material number 2.4733 and UNS N06230, and is sold under the trade name Haynes® 230. Tungsten at about 14 % and molybdenum at about 2 % strengthen the alloy in solid solution, stable primary carbides hold that strength at temperature, and a small lanthanum addition keeps the chromium oxide scale attached to the surface. The result is a grade that runs continuously in air at up to about 1150 °C (2100 °F) and resists nitriding better than most nickel-base alloys.
Jiangyin Jiangnan Metal Co., Ltd. forges NiCr22W14Mo to order at its works in Jiangyin, Jiangsu, China. Forms include seamless rolled rings, flanges, shafts, discs, sleeves, bars and tube sheets, produced to ASTM B564 / ASME SB-564 and DIN 17744.
- Chemical designation
- NiCr22W14MoDIN / EN
- Material number
- 2.4733Werkstoff-Nr.
- UNS number
- N06230
- Trade name
- Haynes® 230also Alloy 230, NS3313
- Alloy system
- Ni-Cr-W-Mosolid solution and carbide strengthened
- Max. continuous service
- 1150 °C2100 °F in oxidising air
- Solution anneal
- 1177–1246 °Crapid cool or water quench
- Density
- 8.97 g/cm³0.324 lb/in³
- Forging standards
- ASTM B564ASME SB-564 · AMS 5891 · DIN 17744
- Certification
- EN 10204 3.13.2 third-party on request
- Forged by
- Jiangnan MetalJiangyin, Jiangsu, China
- Enquiries
- sales@steelforgepieces.com
NiCr22W14Mo forged product forms
All shapes listed below are forged from ESR-refined billet on open dies. Nothing is cast, and nothing is fabricated from plate. Jiangyin Jiangnan Metal works to your drawing, or supplies a plain blank with machining allowance if you prefer to finish the part yourself. Every piece is solution annealed and ultrasonically tested before it leaves the works.
| Forged form | Size range | Typical end use |
|---|---|---|
| Seamless rolled rings | OD 200–2500 mm · wall 30–400 mm · height 30–600 mm | Combustor casings, furnace retort flanges, bellows weld ends |
| Forged flanges | OD 100–2000 mm · WN, SO, blind, ring-type joint | High-temperature process piping, reactor nozzles |
| Forged discs and blanks | Ø 100–1500 mm · thickness 20–400 mm | Turbine discs, valve bonnets, closure heads |
| Forged shafts and round bars | Ø 60–800 mm · length up to 6000 mm | Chemical pump shafts, plunger pumps, spindles |
| Forged sleeves and bushings | OD 80–1200 mm · length up to 2000 mm | Thermocouple protection tubes, wear sleeves |
| Forged tube sheets | Ø up to 2500 mm · thickness up to 350 mm | Shell-and-tube heat exchangers, air receivers |
| Forged blocks and valve bodies | Single piece 5–3000 kg | Ball, gate, globe, check and plug valve bodies and seat rings |
| Hollow forgings and forged pipe | OD 150–1500 mm · wall 25–300 mm | Pressure vessel shell courses, reformer headers |
If the shape you need is not in the table, send the drawing. Open-die forging carries no die cost, so a single piece is quoted on the same basis as a production batch. Eccentric shafts, nozzles, crankshafts, manifolds and forged rolls are all regular work.
NiCr22W14Mo designations and equivalent standards
This alloy carries a different name in almost every specification system, which is a
common source of ordering mistakes. State the standard together with the grade.
UNS N06230 per ASTM B564 is unambiguous. "Nickel alloy 230" on its own is
not, because composition ranges and documentation requirements differ between
standards.
| System | Designation | Covers |
|---|---|---|
| DIN / EN chemical symbol | NiCr22W14Mo | All wrought forms |
| EN material number | 2.4733 | All wrought forms |
| UNS | N06230 | All wrought forms |
| Trade and common names | Haynes® 230, Alloy 230 | Industry usage |
| China GB/T | NS3313 | Wrought nickel alloy |
| DIN | DIN 17744 | Wrought nickel alloys |
| ASTM / ASME | B564 / SB-564 | Nickel alloy forgings |
| ASTM / ASME | B572 / SB-572 | Bar and rod |
| ASTM / ASME | B435 / SB-435 | Plate, sheet and strip |
| ASTM / ASME | B622 / SB-622 | Seamless pipe and tube |
| ASTM / ASME | B366 / SB-366 | Wrought fittings |
| SAE AMS | AMS 5891 | Bar and forgings |
| SAE AMS | AMS 5878 | Sheet, strip and plate |
| GE specification | B50TF246 | Gas turbine material |
| Welding consumables | ERNiCrWMo-1 / ENiCrWMo-1 | AWS A5.14 / A5.11 filler |
ASME Section VIII Division 1 covers the alloy. Section I Code Case 2063 permits use up to 900 °C (1650 °F). Check that the code edition your project works to still carries the case before you place the order.
NiCr22W14Mo chemical composition
The figures below are the specified ranges for UNS N06230 in ASTM B564 and ASTM B572. Jiangyin Jiangnan Metal checks each heat by optical emission spectrometry and prints the actual analysis on the EN 10204 certificate that ships with the forging.
| Element | Symbol | Weight % | Role in the alloy |
|---|---|---|---|
| Nickel | Ni | 47.0–65.0 (bal.) | Austenitic matrix |
| Chromium | Cr | 20.0–24.0 | Forms the protective Cr₂O₃ scale |
| Tungsten | W | 13.0–15.0 | Main solid-solution strengthener |
| Molybdenum | Mo | 1.0–3.0 | Further solid-solution strengthening |
| Iron | Fe | 3.0 max | Residual |
| Cobalt | Co | 5.0 max | Residual |
| Manganese | Mn | 0.30–1.00 | Deoxidiser |
| Silicon | Si | 0.25–0.75 | Aids oxidation resistance |
| Aluminium | Al | 0.20–0.50 | Deoxidiser, scale adherence |
| Carbon | C | 0.05–0.15 | Forms stable primary carbides |
| Lanthanum | La | 0.005–0.050 | Rare earth, anchors the oxide scale |
| Copper | Cu | 0.50 max | Residual |
| Titanium | Ti | 0.10 max | Residual |
| Phosphorus | P | 0.030 max | Impurity |
| Sulfur | S | 0.015 max | Impurity |
| Boron | B | 0.015 max | Controlled for creep resistance |
Melting route is EAF plus AOD or VOD, followed by electroslag remelting. ESR reduces segregation and improves cleanliness before the billet goes to the forge.
NiCr22W14Mo mechanical properties
Room-temperature figures for material in the solution-annealed condition. The minimum column is what ASTM B564 and ASTM B572 require, and what Jiangyin Jiangnan Metal certifies against. The typical column shows what solution-annealed bar and forgings normally return on test.
| Property | ASTM B564 / B572 minimum | Typical, bar and forgings |
|---|---|---|
| Tensile strength, Rm | 760 MPa (110 ksi) | 830–870 MPa (120–126 ksi) |
| Yield strength, Rp0.2 | 310 MPa (45 ksi) | 380–400 MPa (55–58 ksi) |
| Elongation, A | 40 % | 45–50 % |
| Reduction of area | not specified | about 50 % |
| Hardness | not specified | about 90 HRB |
| Modulus of elasticity, E | not specified | 211 GPa (30.6 × 10³ ksi) |
Physical properties
| Property | Metric | Imperial |
|---|---|---|
| Density | 8.97 g/cm³ | 0.324 lb/in³ |
| Melting range | 1301–1371 °C | 2375–2500 °F |
| Thermal conductivity at 21 °C | 8.9 W/m·K | 62 BTU·in/h·ft²·°F |
| Mean CTE, 20–100 °C | 12.7 µm/m·°C | 7.0 µin/in·°F |
| Electrical resistivity at 20 °C | 1.25 µΩ·m | 125 µΩ·cm |
Elevated-temperature tensile, creep and stress-rupture data are available on request. Send the service temperature and design life with your enquiry and we will include the relevant figures with the quotation.
Forging practice and heat treatment
NiCr22W14Mo is not age-hardenable. Its strength comes from tungsten and molybdenum held in solid solution together with stable primary carbides, so the finished condition is solution annealed and rapidly cooled. Adding an ageing cycle gives no benefit and can coarsen carbides at the grain boundaries.
Hot working
Forge between 1177 and 1232 °C (2150–2250 °F). Reheat as often as the section needs. Stop working before the metal drops below 927 °C (1700 °F). The alloy is stiff at temperature and low-temperature working can crack it.
Solution annealing
Anneal at 1177 to 1246 °C (2150–2275 °F), commonly around 1230 °C, then water quench or fast air cool. Hot- and cold-worked parts are re-annealed to bring strength and ductility back into balance.
Grain stability
Primary carbides in this grade are stable enough that grain size holds after 24 hours at 1204 °C. Sigma and mu phase do not form after thousands of hours between 649 and 871 °C, so ductility stays high in service.
Machining and welding
Use rigid setups, positive rake and a heavy depth of cut. Behaviour on the machine is close to Haynes® 25 and Haynes® 188. Weld with ERNiCrWMo-1 filler by GTAW or GMAW. Most sections need no post-weld heat treatment.
Where NiCr22W14Mo forgings are used
NiCr22W14Mo is specified where a part has to keep its strength above 900 °C and survive oxidation, nitriding and thermal cycling at the same time. Customers order forgings in this grade from Jiangyin Jiangnan Metal for the following duties:
Gas turbines and aerospace
- Combustor cans, liners and transition ducts
- Forged nozzles and turbine discs
- Land-based turbine casing rings
Chemical and petrochemical
- Nitric acid catalyst grids and baskets
- Reformer and cracker internals
- Chemical and plunger pump shafts
Industrial heating
- Furnace retorts, muffles and fixtures
- Strand annealing tubes
- Thermocouple protection tubes
Power and waste-to-energy
- Burner buckets, dampers, cyclone separators
- Incinerator hardware under thermal cycling
- High-temperature expansion bellows weld ends
Pressure equipment
- Forged tube sheets for shell-and-tube exchangers
- Flanges and nozzles for ASME VIII Div. 1 vessels
- Air receiver and reactor closure components
Oil, gas and valves
- Valve bodies, bonnets, seat rings and stems
- Wellhead and christmas tree components
- Subsea and offshore production hardware
Testing, inspection and certification
Every NiCr22W14Mo order is released against a documented test package:
- Ultrasonic testing to EN 10228-3, SEP 1921 or ASTM A388. State the acceptance class with your enquiry.
- Chemical analysis by OES on the heat, plus positive material identification by XRF on the finished piece.
- Mechanical testing covering tensile, impact, hardness and grain size, sampled per the applicable ASTM or DIN standard.
- Dimensional inspection against your drawing, with CMM reports for parts machined to finish.
- Optional NDT including dye penetrant, magnetic particle where applicable, intergranular corrosion and hydrostatic testing.
- Certification to EN 10204 3.1 as standard, or 3.2 witnessed by TÜV, SGS, BV, LR or DNV when your end client requires it.
Sourcing NiCr22W14Mo forgings from Jiangyin Jiangnan Metal
Jiangyin Jiangnan Metal Co., Ltd. is an open-die forging factory at No.1 Chengxiqiao Road, Zhouzhuang Town, Jiangyin City, Jiangsu Province, China. The works sits inside the Jiangyin forging cluster, about two hours from Shanghai port. Forging, heat treatment, testing and despatch are handled on site. We are a manufacturer, not a trading company reselling stock cut from someone else's bar.
No die cost
Open-die forging needs no dedicated tooling, so a single piece is quoted on the same basis as fifty. There is no minimum order quantity on custom shapes.
Traceability from one works
Forging, solution annealing, ultrasonic testing and mechanical testing all take place at the same site, so the record runs unbroken from heat number to finished part.
Quoted against your standard
Tell us the standard and we quote and certify to it, whether that is ASTM B564, AMS 5891 or DIN 17744, rather than a generic release note.
Other nickel grades in regular production
Inconel 625 and 718, Hastelloy C-276, Incoloy 800H and Monel 400 run through the same shop, so mixed-grade orders ship together.
What to send with your enquiry
Send the drawing or finished dimensions, the quantity, the standard and acceptance class, the required delivery condition, the certificate type (EN 10204 3.1 or 3.2), and the service temperature if the part goes into a hot section. With that information we can return a firm price and lead time on the first reply.
NiCr22W14Mo frequently asked questions
What is NiCr22W14Mo?
NiCr22W14Mo is the DIN/EN chemical designation for a nickel-chromium-tungsten-molybdenum superalloy carrying material number 2.4733 and UNS number N06230. It contains about 22 % chromium, 14 % tungsten and 2 % molybdenum in a nickel matrix, with a small lanthanum addition. It is used where components have to keep their strength and resist oxidation above 900 °C.
Is NiCr22W14Mo the same as Haynes® 230?
Yes. They are the same alloy under different naming systems. NiCr22W14Mo is the DIN/EN chemical designation, 2.4733 is the European material number, UNS N06230 is the American number, and Haynes® 230 is the registered trade name of Haynes International. Material ordered as NiCr22W14Mo per ASTM B564 meets the same composition and property limits as UNS N06230.
What is the maximum service temperature of NiCr22W14Mo?
NiCr22W14Mo runs continuously in oxidising air up to about 1150 °C (2100 °F). For pressure-retaining components the governing limit is lower. ASME Section I Code Case 2063 permits use to 900 °C (1650 °F). Take the allowable stress from the applicable code edition rather than from the oxidation limit.
Can NiCr22W14Mo be age-hardened?
No. NiCr22W14Mo is solid-solution and carbide strengthened rather than precipitation hardened, so there is no ageing treatment for it. Forgings are supplied solution annealed at 1177 to 1246 °C and rapidly cooled.
Which standards cover NiCr22W14Mo forgings?
Forgings are covered by ASTM B564 / ASME SB-564 and AMS 5891. Bar and rod fall under ASTM B572 / ASME SB-572, plate, sheet and strip under ASTM B435 / ASME SB-435, seamless pipe and tube under ASTM B622 / ASME SB-622, and wrought fittings under ASTM B366 / ASME SB-366. The German reference is DIN 17744 and the GE aerospace specification is B50TF246.
What forged shapes can Jiangyin Jiangnan Metal supply in NiCr22W14Mo?
Seamless rolled rings, flanges, discs and blanks, shafts and round bars, sleeves and bushings, tube sheets, valve bodies and seat rings, hollow forgings and forged pipe, plus custom open-die shapes to drawing. Table 1 lists the size range for each form.
Do you supply EN 10204 3.2 certificates?
Yes. EN 10204 3.1 certificates are issued as standard with every NiCr22W14Mo forging. EN 10204 3.2 certificates witnessed by an independent third party such as TÜV, SGS, BV, LR or DNV are available on request. State the inspection body when you place the enquiry so the release can be scheduled.
How do I get a quotation for NiCr22W14Mo forgings?
Email the drawing or dimensions, quantity, applicable standard and certificate type to sales@steelforgepieces.com, or call +86 189 2135 9659. There is no minimum order quantity on open-die shapes and single prototype pieces are accepted.
Request a NiCr22W14Mo forging quotation
Send a drawing and we will come back with price, lead time and the test package, normally within one working day.
- Manufacturer
- Jiangyin Jiangnan Metal Co., Ltd.
Open-die forging factory - Works address
- No.1 Chengxiqiao Road, Zhouzhuang Town, Jiangyin City, Jiangsu Province, China
- Telephone / WhatsApp
- +86 189 2135 9659