07Cr12Ni4Mn5Mo3Al Age-Hardening Stainless Steel Bars and Plates
This is a precipitation-hardening martensitic stainless steel that combines the high strength of martensitic stainless steels with the corrosion resistance of austenitic stainless steels. It boasts ultra-high strength, excellent toughness, and outstanding corrosion resistance, making it particularly well-suited for withstanding high-stress loads in harsh environments.
Applications of 07Cr12Ni4Mn5Mo3Al
This material is primarily used for high-strength structural components in the aerospace industry (such as landing gear and fasteners), corrosion-resistant load-bearing parts for ships, high-end chemical equipment, and critical components for the nuclear industry. It is particularly well-suited for applications that demand a combination of lightweight design, high strength, and excellent corrosion resistance.
Equivalent Grades and Commonly Used Specifications of 07Cr12Ni4Mn5Mo3Al
| Steel Grade | Specification | Specification Name |
| 07Cr12Ni4Mn5Mo3Al/ 0Cr12Ni4Mn5Mo3Al/S51240 | GJB 8268 | Specification for precipitation-hardening stainless steel bars for aviation |
| Produce as other form and size according to technical requirements are available. | ||
Typical Chemical Composition of 07Cr12Ni4Mn5Mo3Al
|
Elements |
C | Si | Mn | P | S | Ni | Cr | Mo | Al |
| Contents% | 0.03~0.09 | ≤0.80 | 4.40~5.30 | ≤0.030 | ≤0.015 | 4.00~5.00 | 11.00~12.00 | 2.70~3.30 |
0.50~1.00 |
| Produce as other form and size according to technical requirements are available. | |||||||||
Typical Heat Treatment Condition and Mechanical Properties of 07Cr12Ni4Mn5Mo3Al
|
Delivery Condition |
Mechanical Properties and Hardness of Heat-Treated Specimens | ||||||
| Rp0.2/(N/mm2) | Rm/(N/mm2) | A/% | Zb/% | Aku2d/J | HBW |
HRC |
|
|
Annealed Condition |
/ | / | / | / | / | ≤363 | / |
| As-quenched Condition（1050℃±10℃, water or air cool plus -73℃±6℃，4~8h plus 520℃±10℃，1~2h air） | ≥1280 | ≥1520 | ≥9 | ≥40 | ≥39 | / |
≥46 |
| Produce as other form and size according to technical requirements are available. | |||||||
Product Forms and Size Range of 07Cr12Ni4Mn5Mo3Al
|
Product forms |
Size range |
|
Bars |
Diameter or side length: 5.0mm~1000mm |
| Flats |
thickness: 4.0mm~1000mm width: 300mm~2200mm |
| Produce as other form and size according to technical requirements are available. | |
