1.4938 & 1.4939 CREEP-RESISTANT STEEL
| Product parameters | |
| Material category:: | Martensitic stainless steel series |
| Stock & Inventory available:: | Diameter 55 ~ 210mm, ESR ingot |
| Production lead time:: | Within 5 days after 30% deposit. |
| Company ISO register No.:: | UQ211218R0 |
Description
1.4938 usually produced by EF + VD 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.
Application Field
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 Equivalents
| DIN | W-Nr | Other |
|---|---|---|
| X12CrNiMoV12-3 | 1.4939 | 1.4939 |
Chemical Composition (Mass weight %)
| C | Si | Mn | P | S | Cr | Ni | Mo | Other |
|---|---|---|---|---|---|---|---|---|
| 0.08 ～ 0.15 | ≤ 0.35 | 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 N 0.010 ～ 0.040 |
Typical Mechanical Properties
| 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 | 30 | ≥ 41 | 302 ~ 352 |
