Controlled expansion alloy · UNS K94610 · ASTM F15 · W.Nr. 1.3981 · 4J29
UNS K94610 Forgings
Seamless rolled rings, flanges, round bars, discs, shafts, sleeves, bushings and tube sheets, open-die forged in nickel-iron-cobalt sealing alloy to ASTM F15.
UNS K94610 is a nickel-iron-cobalt controlled expansion alloy specified to ASTM F15, containing nominally 29% nickel and 17% cobalt with the balance iron. Its mean coefficient of thermal expansion is close to 5 × 10−6/°C from room temperature to 450 °C, which matches hard borosilicate sealing glass such as Corning 7052 and alumina ceramic. Forgings in this alloy are used for hermetic glass-to-metal and ceramic-to-metal seals that have to hold through repeated thermal cycling. The alloy is ferromagnetic, and the flat part of the expansion curve ends at the Curie temperature of 435 °C.
Jiangyin Jiangnan Metal Co., Ltd. is an open-die forging factory at No.1 Chengxiqiao Road, Zhouzhuang Town, Jiangyin City, Jiangsu Province, China. It forges UNS K94610 to customer drawings: seamless rolled rings, flanges, bars, discs, shafts, sleeves, bushings and tube sheets. Parts are supplied hydrogen annealed, ultrasonically tested and certified to EN 10204 3.1 or 3.2. For a quotation, contact sales@steelforgepieces.com or +86 189 2135 9659.
UNS K94610 at a glance
- Grade
- UNS K94610, ASTM F15 sealing alloy
- UNS number
- K94610
- Werkstoff / DIN
- 1.3981 / FeNi29Co17 (DIN 17745)
- Chinese designation
- 4J29
- Alloy family
- Nickel-iron-cobalt, controlled expansion, ferromagnetic
- Governing standard
- ASTM F15; AMS 7726; MIL-I-23011 Class 1
- Delivery condition
- Annealed in dry hydrogen or cracked ammonia
- Matched to
- Hard borosilicate glass (Corning 7052 type), alumina ceramic
- Sealing range
- Room temperature to 450 °C
- Curie temperature
- 435 °C (815 °F)
- Density
- 8.36 g/cm³ (0.302 lb/in³)
- Melting point
- 1450 °C (2640 °F)
- Certification
- EN 10204 3.1 or 3.2 (third-party witnessed)
- Forged by
- Jiangyin Jiangnan Metal Co., Ltd., Jiangyin, Jiangsu, China
What UNS K94610 is, and when to specify it
UNS K94610 belongs to the iron-nickel-cobalt group of controlled expansion alloys. The 29% nickel and 17% cobalt content gives a low and nearly flat expansion coefficient from room temperature to 450 °C, together with a Curie temperature of 435 °C. Cobalt is the reason the flat range reaches that far. Binary iron-nickel alloys of similar expansion have a Curie point near 200 °C, which is too low for most sealing work.
Specify UNS K94610 where a part is sealed to hard borosilicate glass or to alumina ceramic and has to stay hermetic through thermal cycling. Common examples are feedthrough bodies, package lids and bases, tube seal rings, header discs and connector shells.
The alloy is a poor choice where the requirement is simply low movement. Invar 36 expands at about a quarter of the rate and contains no cobalt, so it costs less. UNS K94610 is selected for its match to glass rather than for minimum expansion.
Thermal expansion of UNS K94610
Thermal expansion is the property that ASTM F15 acceptance is based on. Nickel and cobalt are adjusted heat by heat so that the measured expansion falls inside the specified range. The composition limits in Table 2 support that result but are not the acceptance criterion themselves.
| From 25 °C to | ×10−6/°C | From 77 °F to | ×10−6/°F | ASTM F15 requirement |
|---|---|---|---|---|
| 100 °C | 5.86 | 212 °F | 3.25 | — |
| 200 °C | 5.20 | 392 °F | 2.89 | — |
| 300 °C | 5.13 | 572 °F | 2.85 | — |
| 350 °C | 4.89 | 662 °F | 2.72 | — |
| 400 °C | 5.06 | 752 °F | 2.81 | 4.60–5.20 µm/m·°C (30–400 °C) |
| 450 °C | 5.25 | 842 °F | 2.92 | 5.10–5.50 µm/m·°C (30–450 °C) |
| 500 °C | 6.15 | 932 °F | 3.41 | above the sealing range |
| 600 °C | 7.80 | 1112 °F | 4.34 | above the sealing range |
| 700 °C | 9.12 | 1292 °F | 5.06 | above the sealing range |
| 800 °C | 10.31 | 1472 °F | 5.73 | above the sealing range |
| 900 °C | 11.26 | 1652 °F | 6.25 | above the sealing range |
Values are typical for material annealed in hydrogen, one hour at 900 °C or a short hold near 1100 °C, cooled to room temperature within one hour. The highlighted rows are the ranges required by ASTM F15 Table 4. Table compiled by Jiangyin Jiangnan Metal Co., Ltd. from published ASTM F15 alloy data.
Behaviour above the Curie point
Below 435 °C the alloy is ferromagnetic and magnetostriction offsets much of the normal lattice expansion. Above the Curie point the alloy is paramagnetic, the offset is lost, and expansion returns to values normal for an austenitic iron-nickel alloy. The inflection near 450 °C sets the practical ceiling for seal design in service. Glass sealing and brazing cycles run above this temperature by design, since the seal is made hot and works cold.
The alloy is magnetic at room temperature. Allow for this where a part sits close to a magnetic circuit. Magnetic particle inspection can be used on forged UNS K94610, although ultrasonic testing is the usual volumetric method.
Chemical composition of UNS K94610 (ASTM F15)
Composition limits are per ASTM F15, in weight percent. Iron, nickel and cobalt are given as nominal figures. The producer adjusts them within narrow limits so that each heat meets the thermal expansion requirement in Table 1.
| Element | Minimum % | Maximum % | Function |
|---|---|---|---|
| Iron (Fe) | 53.00 nominal, balance | Base element | |
| Nickel (Ni) | 29.00 nominal | Sets the Curie temperature and the position of the expansion inflection | |
| Cobalt (Co) | 17.00 nominal | Raises the Curie point so that the flat range reaches 450 °C | |
| Manganese (Mn) | — | 0.50 | Deoxidiser; combines with sulfur |
| Silicon (Si) | — | 0.20 | Deoxidiser; held low to protect glass wetting |
| Carbon (C) | — | 0.04 | Held low. Residual carbon evolves CO at the seal and produces bubbles in the glass |
| Copper (Cu) | — | 0.20 | Residual limit |
| Chromium (Cr) | — | 0.20 | Residual limit. Higher levels form a refractory oxide that the glass will not wet |
| Molybdenum (Mo) | — | 0.20 | Residual limit |
| Aluminium (Al) | — | 0.10 | Residual limit |
| Magnesium (Mg) | — | 0.10 | Residual limit |
| Zirconium (Zr) | — | 0.10 | Residual limit |
| Titanium (Ti) | — | 0.10 | Residual limit |
| Al + Mg + Zr + Ti | — | 0.20 | Combined ceiling. These elements form tenacious oxides that reduce glass adhesion |
Source: ASTM F15 Table 1. Every heat is supplied with a ladle analysis on the mill certificate. Product analysis on the finished forging can be added on request.
Physical properties of UNS K94610
| Property | Metric | Imperial |
|---|---|---|
| Density | 8.36 g/cm³ | 0.302 lb/in³ |
| Melting point | 1450 °C | 2640 °F |
| Curie temperature | 435 °C | 815 °F |
| Thermal conductivity | 17.3 W/m·K | 120 Btu·in/ft²·h·°F |
| Electrical resistivity, 21 °C | 0.49 µΩ·m (49 µΩ·cm) | 294 Ω·circ mil/ft |
| Specific heat | 460 J/kg·K | 0.11 Btu/lb·°F |
| Modulus of elasticity | 138 GPa | 20 × 106 psi |
| Poisson's ratio | 0.317 | 0.317 |
| Magnetic behaviour | Ferromagnetic below 435 °C. Permeability rises as hardness falls | |
| Low-temperature stability | No phase transformation reported down to −196 °C | |
Mechanical properties of UNS K94610 forgings
UNS K94610 is a solid-solution alloy and is not precipitation hardened. Strength is moderate. Forgings are supplied annealed so that the expansion behaviour is correct.
| Property | Metric | Imperial |
|---|---|---|
| Tensile strength | 517 MPa | 75 ksi |
| Yield strength, 0.2% offset | 345 MPa | 50 ksi |
| Elongation in 50 mm (2 in) | 30 % | 30 % |
| Hardness | 68 HRB | 68 HRB |
| Tensile max, rod and wire, ASTM F15 Temper A | 585 MPa max | 85 ksi max |
| Tensile max, sheet and strip, ASTM F15 Temper A | 570 MPa max | 82 ksi max |
Typical values are for design screening. The mill test certificate issued with each forging governs acceptance. Results vary with section size, reduction ratio and cooling rate.
Forging, machining and welding
- Hot working. Forged from about 1150 °C (2100 °F) with a finish temperature not below 870 °C (1600 °F). Reheat rather than finish cold.
- Work hardening. The alloy hardens quickly in cold work. Intermediate anneals are normal during heavy forming and deep drawing.
- Machining. Use sharp positive-rake carbide, a rigid setup, low surface speed, heavy feed and generous coolant. Feeds and speeds are closer to austenitic stainless steel than to carbon steel.
- Welding. GTAW, electron beam, laser and resistance welding are all used, usually autogenous. Laser seam and electron beam welding are preferred for hermetic packages because the heat-affected zone is narrow.
- Plating. Electroplated nickel followed by gold is the standard finish for solderability. The nickel underplate prevents iron diffusion into the gold.
Heat treatment of UNS K94610
Two thermal operations govern sealing performance: the anneal that sets the expansion curve, and the controlled oxidation that produces the film the glass bonds to. They use different atmospheres and are run as separate steps.
| Operation | Temperature | Atmosphere and hold | Purpose |
|---|---|---|---|
| Forging | 1150 to 870 °C | Air, controlled reduction ratio | Close porosity and develop grain flow along the part contour |
| General anneal | 850–1000 °C | Dry hydrogen or cracked ammonia | Soften, relieve forging stress, restore ductility |
| Expansion anneal | 900 °C for 1 h, or 1100 °C for 15 min | Dry hydrogen; cool to room temperature within 1 h | Produce the expansion curve required by ASTM F15 and remove carbon |
| Stress relief | 800–900 °C | Dry hydrogen | Relieve machining stress before final sizing |
| Controlled oxidation | 600–1000 °C | Air or wet hydrogen, time set by required film thickness | Produce the adherent grey oxide that the sealing glass wets and dissolves |
Oxide thickness is a frequent cause of seal leakage. Too little oxide gives poor adhesion. Too much oxide spalls under thermal cycling. State the oxidation schedule on the drawing if parts go directly to sealing, and it will be run and recorded on the certificate.
UNS K94610 vs Alloy 42 vs Invar 36: how to choose
These grades are often interchanged on drawings because they belong to the same iron-nickel expansion family. Each one is matched to a different partner material, so substituting one for another changes the seal.
| Criterion | UNS K94610 | Alloy 42 | Alloy 46 / Alloy 52 | Invar 36 |
|---|---|---|---|---|
| UNS number | K94610 | K94100 | K94600 / N14052 | K93600 |
| Specification | ASTM F15 | ASTM F30 | ASTM F30 | ASTM F1684 |
| Nominal chemistry | 29% Ni, 17% Co, bal. Fe | 42% Ni, bal. Fe | 46% / 51% Ni, bal. Fe | 36% Ni, bal. Fe |
| Mean CTE, ×10−6/°C | 5.1 (30–450 °C) | 4.5–5.3 (30–400 °C) | 7.3 / 10.2 (30–400 °C) | 1.2–1.5 (20–100 °C) |
| Curie temperature | 435 °C | 360 °C | 460 / 500 °C | 279 °C |
| Matched to | Hard borosilicate glass, alumina ceramic | Silicon, softer glasses, alumina | Soft and soda-lime glasses | No sealing partner |
| Typical use | Hermetic feedthroughs, microwave and power tube seals, hybrid packages | IC lead frames, reed switches, thermostat elements | Lamp and display seals, soft-glass feedthroughs | Composite tooling, metrology frames, LNG containment |
| Choose it when | The partner is hard glass or alumina and service stays below 450 °C | The partner is silicon or a softer glass, or cobalt cost is unacceptable | The partner is a soft glass of higher expansion | Minimum movement is required without a seal |
UNS K94610 is sometimes specified where the requirement is dimensional stability rather than a glass seal. Cryogenic LNG containment, LNG transfer lines, composite moulds for aerospace, precision frames and metrology hardware all call for Invar 36, which expands at about a quarter of the rate of UNS K94610. Specify UNS K94610 where a part is sealed to hard glass or alumina.
UNS K94610 equivalent designations
| System | Designation |
|---|---|
| UNS (USA) | K94610 |
| ASTM | F15 |
| SAE / AMS | AMS 7726 |
| US military | MIL-I-23011 Class 1 / AMS-I-23011 Class 1 |
| Werkstoff Nr. (Germany) | 1.3981 |
| DIN name | FeNi29Co17 (DIN 17745) |
| China (GB) | 4J29 |
| Generic names | Alloy 29-17, Fernico I, glass sealing alloy 29-17 |
| Proprietary names | Kovar® (Carpenter / CRS Holdings), Nilo® K (Special Metals), Pernifer® 2918 (VDM Metals), Dilver® P1 (Aperam), Rodar®, Vacon® 12 (Vacuumschmelze), Nicoseal®, Therlo® |
Trademark notice. Kovar is a registered trademark of CRS Holdings, Inc., part of Carpenter Technology Corporation. Nilo is a registered trademark of Special Metals Corporation, Pernifer of VDM Metals, Dilver of Aperam, and Vacon of Vacuumschmelze GmbH. Material made by those companies and sold under those brand names is theirs. Material we produce is correctly described as UNS K94610 / ASTM F15 / W.Nr. 1.3981 / 4J29, the same alloy specification, manufactured independently by Jiangyin Jiangnan Metal Co., Ltd. We are not affiliated with, sponsored by, or endorsed by any of the trademark holders listed above.
UNS K94610 forgings we produce
Every item below is forged to the customer's drawing or dimensional sketch. Open-die work needs no dies, so there is no fixed catalogue, no tooling charge and no piece minimum.
Size and weight capability
| Product form | Dimensional range | Unit weight |
|---|---|---|
| Seamless rolled rings | OD 150–1,500 mm, height to 400 mm | 5–1,500 kg |
| Round bars and billets | Ø25–400 mm, length to 3,000 mm | 2–1,200 kg |
| Discs, blanks, tube sheets | Ø100–1,200 mm, thickness to 300 mm | 3–1,500 kg |
| Shafts, sleeves, bushings | to 3,000 mm long | to 1,500 kg |
Machining allowance is normally 6 to 20 mm per surface depending on section size, unless the drawing states otherwise. Finish-machined parts to print are also supplied. Sealing-grade UNS K94610 is normally ordered in small heats, and larger sections are quoted against a dedicated melt.
How we make UNS K94610 forgings
- Melting Sealing-grade UNS K94610 is vacuum induction melted, with VAR or ESR remelting where the specification or the service calls for it. Structural parts outside sealing duty can be supplied from EAF + VOD + ESR stock. The melt route is stated on the certificate.
- Chemistry verification Heat chemistry is verified by spectrometer against ASTM F15 limits before any material is heated, with attention to carbon and to the combined aluminium, magnesium, zirconium and titanium ceiling that governs glass adhesion.
- Open-die forging Forged from about 1150 °C with a finish temperature not below 870 °C, at a controlled reduction ratio to close porosity and develop grain flow that follows the part contour. Rings are ring-rolled seamless.
- Annealing Annealed in dry hydrogen or cracked ammonia. One hour at 900 °C, or a short hold near 1100 °C with cooling to room temperature within an hour, sets the expansion curve required by ASTM F15.
- Rough or finish machining Turned, bored, drilled and faced to the drawing with an agreed machining allowance, or to final dimensions.
- Non-destructive testing Ultrasonic examination to EN 10228-3, SEP 1921, ASTM A388 or the nominated class. Penetrant, magnetic particle and dimensional inspection as required.
- Certification and despatch EN 10204 3.1 mill certificate as standard, EN 10204 3.2 with third-party witness (TÜV, BV, LR, SGS, DNV) on request. Marked, preserved and packed for sea or air freight.
Where UNS K94610 forgings are used
| Industry | Components forged in UNS K94610 |
|---|---|
| Vacuum electronics | Power tube and microwave tube seal rings, klystron, magnetron and travelling wave tube bodies, X-ray tube components, vacuum interrupter housings, waveguide and cavity resonator parts |
| Semiconductor packaging | Flatpack and dual-in-line housings, lids and bases for seam-welded hermetic packages, transistor and diode headers, hybrid package frames, crystal oscillator cans |
| Photonics and optoelectronics | Laser diode housings, fibre optic transmitter and receiver shells, photodetector packages, submounts that hold optical alignment across the operating range |
| Medical devices | Hermetic enclosures and feedthrough ferrules for pacemakers, neurostimulators, cochlear implants and infusion pumps, sealed to alumina insulators |
| Aerospace and defence | Avionics and satellite hermetic packages, connector shells, guidance electronics housings, pressurised instrumentation feedthroughs |
| Sensors and vacuum equipment | Pressure sensor bodies, ion gauge parts, mass spectrometer components, vacuum flanges and feedthrough plates with ceramic or glass insulators |
| Valves and instrumentation | Forged bodies, bonnets, seat rings and stems where a sealed electrical or optical penetration passes through the pressure boundary |
| Thermostatic components | Low-expansion side of high-temperature bimetal elements, temperature regulator parts, positioning devices |
These applications share a hermetic joint between metal and glass, or between metal and ceramic, that has to hold through thermal cycling. Where the requirement is dimensional stability without a seal, such as composite moulds, LNG containment and metrology frames, Invar 36 is the correct alloy.
Testing, inspection and certification
- Chemical analysis. Spectrometric heat analysis and, on request, product analysis on the finished forging.
- Thermal expansion. Dilatometer measurement of the mean coefficient over 30 to 400 °C and 30 to 450 °C against ASTM F15 Table 4, reported on the certificate when specified.
- Mechanical testing. Room-temperature tensile, yield, elongation and hardness. Elevated-temperature and impact testing to the customer specification.
- Ultrasonic testing. EN 10228-3, SEP 1921 Class C/D/E, ASTM A388 or the nominated class.
- Surface NDT. Liquid penetrant to ASTM E165 / ASME V Article 6. Magnetic particle inspection is available, since the alloy is ferromagnetic.
- Grain size and metallography. ASTM E112 grain size and microstructural examination on request.
- Certification. EN 10204 3.1 as standard. EN 10204 3.2 witnessed by TÜV, BV, LR, SGS or DNV on request. Full heat traceability and hard stamping.
Frequently asked questions about UNS K94610
What is UNS K94610?
UNS K94610 is a nickel-iron-cobalt controlled expansion alloy specified to ASTM F15. It contains nominally 29% nickel and 17% cobalt, with the balance iron. Its mean coefficient of thermal expansion is close to 5 × 10−6/°C from room temperature to 450 °C, which matches hard borosilicate sealing glass such as Corning 7052 and alumina ceramic. It is used for hermetic glass-to-metal and ceramic-to-metal seals that have to hold through repeated thermal cycling.
Is UNS K94610 the same as Kovar?
They cover the same alloy specification. Kovar is a registered trademark of CRS Holdings, part of Carpenter Technology Corporation, for its own ASTM F15 product. Material from any other mill is correctly described as UNS K94610 or ASTM F15. Jiangyin Jiangnan Metal Co., Ltd. is not affiliated with the trademark holder and supplies to UNS K94610 and ASTM F15. Order to the UNS number and the standard so the requirement is unambiguous.
What is the chemical composition of UNS K94610?
ASTM F15 gives nominal iron 53%, nickel 29% and cobalt 17%, with manganese 0.50% max, silicon 0.20% max, carbon 0.04% max, copper 0.20% max, chromium 0.20% max, molybdenum 0.20% max, and aluminium, magnesium, zirconium and titanium each 0.10% max with a combined total of 0.20% max.
The iron, nickel and cobalt figures are nominal. The producer adjusts them within narrow limits so that each heat meets the thermal expansion requirement, which is the acceptance criterion.
What is the thermal expansion coefficient of UNS K94610?
In the annealed condition the mean coefficient measured from 25 °C is about 5.86 × 10−6/°C to 100 °C, 5.13 to 300 °C, 5.06 to 400 °C and 5.25 to 450 °C. ASTM F15 Table 4 requires 4.60 to 5.20 µm/m·°C over 30 to 400 °C, and 5.10 to 5.50 µm/m·°C over 30 to 450 °C. Above 450 °C the coefficient rises to about 11.3 × 10−6/°C at 900 °C.
Why does the expansion of UNS K94610 rise above 450 °C?
The flat part of the curve is a magnetic effect. Below the Curie temperature of 435 °C the alloy is ferromagnetic and magnetostriction offsets much of the normal lattice expansion. Above the Curie point the alloy is paramagnetic, the offset is lost, and expansion returns to values normal for an austenitic iron-nickel alloy. The inflection near 450 °C sets the practical ceiling for seal design in service.
What is the difference between UNS K94610, Alloy 42 and Invar 36?
All three are controlled expansion iron-nickel alloys matched to different partner materials. UNS K94610 (ASTM F15, 29% Ni and 17% Co) expands at about 5 × 10−6/°C and is matched to hard borosilicate glass and alumina. Alloy 42 (UNS K94100, ASTM F30, 42% Ni) expands at roughly 4.5 to 5.3 × 10−6/°C and is used for semiconductor lead frames and softer glass seals. Invar 36 (UNS K93600, ASTM F1684, 36% Ni) has the lowest expansion at about 1.2 to 1.5 × 10−6/°C and is a dimensional stability alloy for composite tooling, metrology and cryogenic LNG containment.
Is UNS K94610 magnetic?
Yes. UNS K94610 is ferromagnetic at all temperatures below its Curie point of 435 °C, so it is attracted to a magnet at room temperature. Permeability depends on heat treatment: the softer the anneal, the higher the permeability and the lower the hysteresis loss. Allow for this where a part sits close to a magnetic circuit. Magnetic particle inspection can be used on forged UNS K94610, although ultrasonic testing is the usual volumetric method.
Can UNS K94610 be welded?
Yes. UNS K94610 is joined by GTAW, electron beam, laser and resistance welding. Autogenous welds between two UNS K94610 parts normally need no filler. Laser seam and electron beam welding are preferred for hermetic packages because the heat-affected zone is narrow and dimensional stability is preserved. Parts are degreased before welding to avoid carbon pick-up, and a post-weld hydrogen anneal restores the expansion curve where the seal is critical.
How should UNS K94610 be annealed before glass sealing?
Anneal in dry hydrogen or cracked ammonia. A one hour hold near 900 °C, or a short hold near 1100 °C with cooling to room temperature within an hour, gives the expansion behaviour required by ASTM F15 and removes carbon that would otherwise evolve gas at the seal.
A separate controlled oxidation in air between 600 and 1000 °C then produces the adherent grey oxide film that the sealing glass wets. Film thickness is set by time and temperature.
What sizes of UNS K94610 forgings can you supply?
Jiangyin Jiangnan Metal Co., Ltd. forges UNS K94610 as seamless rolled rings from 150 to 1,500 mm outside diameter, round bars from 25 to 400 mm diameter and up to 3,000 mm long, discs and blanks to 1,200 mm diameter, and shafts, sleeves and bushings to 3,000 mm, with unit weights from a few kilograms to 1,500 kg. Open-die forging needs no dies, so one-off and prototype quantities are economic, with no tooling charge and no piece minimum. Larger sections are quoted against a dedicated melt.
Do you supply a material certificate for UNS K94610 forgings?
Every UNS K94610 forging ships with an EN 10204 3.1 mill test certificate as standard, showing heat number, chemical analysis, mechanical results, heat treatment record, thermal expansion result where specified and NDT results. EN 10204 3.2 certification witnessed by TÜV, BV, LR, SGS or DNV is available on request at the time of order. Ultrasonic examination is reported to EN 10228-3, SEP 1921, ASTM A388 or the nominated class.
Who supplies open-die forged UNS K94610 parts 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. It forges UNS K94610 (ASTM F15, 4J29) and other controlled expansion alloys, nickel alloys, stainless steels, tool steels, alloy steels and carbon steels into seamless rolled rings, flanges, bars, discs, shafts, sleeves, bushings and tube sheets, and exports worldwide. Enquiries: sales@steelforgepieces.com or +86 189 2135 9659.
Request a quotation for UNS K94610 forgings
Send a drawing, a sketch, or the dimensions and quantity. We quote open-die forgings in UNS K94610 with no tooling charge and no piece minimum.
Useful details if you have them: grade and standard (UNS K94610 / ASTM F15 / 4J29), product form, dimensions with machining allowance, quantity, delivery condition, required expansion range, oxidation schedule, NDT class, certificate type (EN 10204 3.1 or 3.2) and required delivery date.
- Company
- Jiangyin Jiangnan Metal Co., Ltd.
- Business
- Open-die forging factory
- Address
- No.1 Chengxiqiao Road, Zhouzhuang Town, Jiangyin City, Jiangsu Province, China
- Telephone / WhatsApp
- +86 189 2135 9659
- Website
- www.steelforgepieces.com
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