AMS 1.4939 Forgings, X11CrNiMoN12 Turbine Blade Steel
DIN 1.4939 (X11CrNiMoN12), A Martensitic Stainless Steel also known as XM-32, AMS 1.4938, S64152, X12CrNiMoV12-3,,, Equivalent standards are similar to one or more standards provided by the supplier.
| Product parameters | |
| Material Category:: | Martensitic Stainless Steel Series |
| Material Technical Standards:: | DIN EN 10302 / 10269, DIN 17742, EN 10095 |
| Terms of Price:: | Ex-works, CIF, CFR |
| Stocklist & Inventory Available:: | Diameter 55 ~ 320mm |
| Melting Process Route:: | EAF + VD + LF / + ESR, BEF + AOD /+ ESR |
| Min. order quantity Per Batch:: | 500 KG |
| Certification:: | Commercial Invoice, Packing list, CO, Bill of lading, Origin of Certificate, Form E |
| Product Shapes:: | Round bars, Falt bars, Forgings, Ring, Valve body |
| Heat Treatment Practice:: | Hardened 1050 ℃, water or oil cooled, tempered 640 ~ 690 ℃, double tempered |
| Production Lead Time:: | Within 15 days after 30% downpayment. |
| Company ISO Register No:: | UQ211218R0 |
Description
Introduction:
AMS 1.4939 usually produced by BEF & AOD followed by electroslag remelting (ESR) / VAR if necessary for special purpose.
Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different levels according to the buyers' requirements.
100% Ultrasonic test ASTM E2375 /SAE AMS 2154 /SEP 1923 /GB/T 4162 /EN 10228-3.
Bars are usually supplied black/bright in the annealed condition.
Applications:
Commonly used in industries such as offshore, marine, food, paper mills, oil field and aerospace.1.4938 used for components such as fasteners, couplings, screws, bushings, studs, fittings, valve stems, roller, wear rings.
Commonly used in industries such as offshore, marine, food, paper mills, oil field and aerospace.1.4938 used for components such as fasteners, couplings, screws, bushings, studs, fittings, valve stems, roller, wear rings.
All Grades Comparison
| DIN | W-Nr | AMS |
|---|---|---|
| X11CrNiMoN12 | W-Nr 1.4938 | 1.4939 |
Chemical Composition (Mass weight %)
| C | Si | Mn | P | S | Cr | Ni | Mo | Other |
|---|---|---|---|---|---|---|---|---|
| 0.08 ～ 0.15 | ≤ 0.50 | 0.40 ～ 0.90 | ≤ 0.025 | ≤ 0.015 | 11.0 ～ 12.5 | 2.00 ～ 3.00 | 1.50 ～ 2.00 | V 0.25 ～ 0.40 V 0.010 ～ 0.040 |
Mechanical Properties under room temp.
| Condition of heat treatment | Tensile Rm(MPa) |
Yield Rp0.2(MPa) |
Elongation A(%) |
Reduction in cross section on fracture Z (%) |
Impact AKV/AKU(J) |
Brinell Hardness(HBW) |
|---|---|---|---|---|---|---|
| Annealing | - | - | - | - | - | - |
| Q/T | 950 ～ 1150 | ≥ 800 | ≥ 13.0 | - | ≥ 55 | - |
