1.4938 & 1.4939 Heat resisting steel bar
| Product parameters | |
| Material category:: | Martensitic stainless steel series |
| Stock & Inventory available:: | Diameter 55 ~ 210mm, ESR ingot |
| Min. order quantity:: | 100 kg |
| Ultrasonic test standard:: | ASTM E2375 / MIL-STD- AMS 2154 / SEP 1923 / GB/T 4162 / EN 10228-3 / EN 10308 |
| ISO 9001-2015 Certified by:: | UKAS |
Description
DIN 1.4938 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.
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 | ≤ 0.50 | 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 |
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 | - | ≥ 55 | - |
Forms and Dimensions available
Rod / round bar / disc (diameter): 5.5 ~ 900 mm
Square bar / flat bar: 8 ~ 650mm
Steel strip via cold rolled: T0.3 - 3 X W10 - 650 X Lmm
Forged ring: OD200 ~ 1500mm X ID150 ~ 1250 X H20 ~ 1250mm
Heavy/middle plate via hot rolled: T50 - 200 X W80- 1200 X Lmm
Forging piece: stepped shafts, other different shapes based on OEM.
