Bar and Rod
Plate and Sheet
Strip
Pipe and Tube
Wire
Welding
Powder Material
Cast Products
Forged Products
Fittings
Fastening
Round Bar:
φ2–500 mm, 1–6 m length
Flat/Square Bar:
4–100 mm thickness/width
Hex Bar:
A/F 3–100 mm
Hollow Bar:
OD 20–300 mm
Sheet:
0.3–6 mm thickness
Medium Plate:
6–25 mm thickness
Heavy Plate:
25–100 mm thickness
Standard Strip:
0.05–3 mm thick,
10–600 mm wide
Precision strip:
0.01–0.5 mm thick,
tight tolerance ±0.005 mm
Foil:
0.005–0.1 mm thick
Seamless Tube:
OD 6–450 mm,
WT 1–50 mm,
1–12 m length
Welded Tube:
OD 10–600 mm,
WT 1–20 mm
Capillary Tube:
OD 1–10 mm,
WT 0.1–2 mm
Wire Form:
Cold Drawn Wire,
Bright Wire,
Spring Wire,
Fine Wire,
Ultra-fine Wire
General Diameter:
φ0.1–10 mm
Coil Weight:
50–500 kg,
customizable tolerance
Solid Wire:
φ0.8–4.0 mm
Flux-cored Wire:
φ1.2–4.0 mm
Welding Rod:
φ2.0–5.0 mm
Powder Form:
AM 3D Printing Powder,
Spherical Powder,
Gas-atomized Powder,
Water-atomized Powder
Particle Size:
10–150 μm
Sphericity:
≥90% for AM grade
Cast Ingot:
φ200–800 mm
Precision Casting:
min wall 0.5 mm
Cast Pipe:
OD 100–600 mm,
WT 10–50 mm
Forged Bar:
Φ35–500 mm
Forged Ring:
OD 200–2000 mm
Forging Weight:
1–5000 kg
Fittings Form:
Elbow, Tee, Reducer, Flange, Cap, Outlet, Lap Joint
Size range:
1/2''–24'' (DN15–DN600)
Wall thickness:
Sch10–Sch160, STD, XS, XXS
Pressure Class:
150–2500 LB
Fastening Form:
Bolt, Nut, Screw, Stud, Washer, Pin, Rivet
Metric: M3–M64
Imperial: #4–2.5''
Length: 6–500 mm
XM-32 is a 12% chromium martensitic stainless steel alloyed with nickel, molybdenum and vanadium for high strength and toughness at elevated temperature. This datasheet presents the material within the American (ASTM / AMS / UNS) standard system.
With about 12% chromium plus nickel, molybdenum and vanadium, Jethete M152 is a high-strength creep-resistant martensitic stainless steel developed for aero-engine and turbine service. Compared with the plain 12Cr martensitic and the 422-type grades, the higher nickel content gives improved toughness and hardenability, while the molybdenum and vanadium provide temper resistance and creep strength. It is hardened by quenching and tempering, is usually electro-slag remelted (ESR) for cleanliness, and offers a strong combination of strength, toughness and fatigue resistance at elevated temperature.
Typical applications include aero-engine compressor blades and discs, steam- and gas-turbine blades, shafts and rotor components, high-temperature bolting, and highly stressed fasteners.
| Property | Value | Unit |
|---|---|---|
| Density | 7.7 | g/cm³ |
| Melting range | 1430–1510 | °C |
| Elastic modulus | 216 | GPa |
| Coefficient of thermal expansion (20–100 °C) | 10.8 | µm/m·°C |
| Thermal conductivity (100 °C) | 24.0 | W/m·K |
| Specific heat (20 °C) | 460 | J/kg·K |
| Structure | Martensitic | — |
| Element | Symbol | Min % | Max % | Role in Alloy |
|---|---|---|---|---|
| Iron | Fe | Balance | — | Base element |
| Chromium | Cr | 11.0 | 12.5 | Corrosion / oxidation resistance |
| Nickel | Ni | 2.00 | 3.00 | Toughness; hardenability |
| Molybdenum | Mo | 1.50 | 2.00 | Temper resistance; creep strength |
| Vanadium | V | 0.25 | 0.40 | Carbide formation; creep strength |
| Carbon | C | 0.10 | 0.15 | Hardness; strength |
| Manganese | Mn | 0.50 | 1.00 | Deoxidiser |
| Silicon | Si | — | 0.35 | Deoxidiser |
| Nitrogen | N | 0.010 | 0.050 | Strengthening |
| Phosphorus | P | — | 0.025 | Residual impurity |
| Sulphur | S | — | 0.015 | Residual impurity |
Hardened-and-tempered condition, per AMS 5719 / ASTM A565 (XM-32).
| Condition | Property | Value |
|---|---|---|
| Hardened & tempered | Tensile strength (UTS) | ≥930 MPa (135 ksi) |
| Hardened & tempered | 0.2% yield strength | ≥760 MPa (110 ksi) |
| Hardened & tempered | Elongation at break | ≥15 % |
| Hardened & tempered | Reduction of area | ≥45 % |
| Hardened & tempered | Impact energy (Charpy V, RT) | ≥41 J |
Confirm against the mill test report. Properties depend on the tempering temperature selected for the service condition.
| Environment | Performance | Notes |
|---|---|---|
| High-temperature oxidation | Good | Suited to elevated-temperature service |
| Steam | Good | Common in steam-turbine service |
| Atmospheric / general | Moderate | Better than low-alloy steels; below austenitic |
| Mild acids | Limited | Martensitic 12Cr level |
| Chloride pitting | Limited | Not for aggressive chloride service |
Corrosion and oxidation resistance is typical of 12% chromium martensitic steels — adequate for steam and elevated-temperature service but below the austenitic stainless grades.
A martensitic grade; hardened by quenching and tempering.
Solution Treatment (Austenitise + Quench) Austenitise at approximately 980–1050 °C and oil or air quench to form martensite.
Temper Temper at approximately 400–700 °C depending on the strength and toughness required; a double temper is often used. An anneal (~700 °C, 4 h, air cool) is used for the soft, machinable condition.
Weldable with care; the martensitic structure requires preheat (~250–350 °C), interpass control and post-weld heat treatment to avoid hard, crack-sensitive welds.
| Welding Process | Applicability | Filler / Consumable |
|---|---|---|
| GTAW / TIG | Acceptable (with PWHT) | Matching M152-type filler |
| GMAW / MIG | Acceptable (with PWHT) | Matching filler |
| EBW / laser | Good | Autogenous or matching filler |
Preheat, interpass control and post-weld heat treatment are required to develop properties and avoid cracking.
Machining Guidelines
| Parameter | Recommendation |
|---|---|
| Preferred condition | Annealed for machining, then harden and temper |
| Machinability | Moderate; carbide tooling for hardened material |
| Coolant | Ample flood coolant |
Forming Processes
| Process | Notes |
|---|---|
| Cold forming | Limited — high strength |
| Hot forming | ~1150–900 °C; harden and temper afterward |
| Industry | Typical Components | Key Requirements |
|---|---|---|
| Aerospace | Compressor blades and discs, shafts | Strength + toughness + fatigue resistance |
| Power generation | Steam- and gas-turbine blades, rotors | Creep + temper resistance |
| Fasteners | High-temperature bolting, highly stressed fasteners | Strength + toughness |
| Engine | Highly stressed elevated-temperature parts | Strength at temperature |
| Product Form | ASTM / AMS Standard | Other |
|---|---|---|
| Bar (high-temperature service) | ASTM A565 (XM-32) | — |
| Bar and forgings | AMS 5719 | MSRR 6503 |
| Forgings / discs | AMS 5719 | — |
| Wire / fasteners | AMS 5719 | — |
High-strength 12Cr-Ni-Mo-V martensitic stainless steel. UNS S64152.
| XM / Grade | Cr % | Ni % | Mo % | Other | Best Used For |
|---|---|---|---|---|---|
| XM-32 | 11–12.5 | 2–3 | 1.5–2 | V | 12Cr-Ni-Mo-V high-strength martensitic (Jethete M152); aero/turbine blades |
| 422 | 11–13 | 0.5–1 | 0.75–1.25 | W, V | 12Cr-Mo-W-V creep martensitic; turbine blades |
| 410 | 11.5–13.5 | — | — | — | General martensitic 12Cr |
| 431 | 15–17 | 1.25–2.5 | — | — | High-strength martensitic; shafts |
| 616 | 11–13 | 0.5–1 | 0.75–1.25 | W, V | Creep martensitic (AISI 616 / 422) |
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