Stainless Steel 1.4122 Flat Bars are highly regarded for their impressive strength, wear resistance, and solid corrosion performance, making them a go-to choice for a variety of industrial and mechanical applications. This martensitic stainless steel grade, which is similar to AISI 420, boasts high hardness and durability after undergoing heat treatment. These flat bars not only provide a stable structure and a clean finish but also offer reliable machinability, making them perfect for precision engineering and fabrication tasks. Their ability to handle mechanical stress and resist moderate corrosive environments makes 1.4122 flat bars a trustworthy option in the automotive, machinery, and tool manufacturing sectors.
Containing 12–14% chromium and optimized carbon levels to boost hardness and mechanical strength, Stainless Steel 1.4122 Flat Bars deliver impressive performance. When tempered or quenched, this alloy achieves a tensile strength of around 700–850 MPa and a yield strength of 450–550 MPa. It showcases excellent wear and abrasion resistance, along with the ability to reach high hardness through heat treatment. With good dimensional stability and moderate corrosion resistance, it performs steadily under mechanical load, making it suitable for applications that demand strength and durability.
Standard : AISI, ASTM, BS, DIN, GB, JIS
Specification : ASTM A276 / ASME SA276
Diameter : 6mm-500mm
Width: 100-4200mm
Length : 1 to 6 meters & as per customer’s requirement.
Range : 3 MM TO 350 MM DIA
Dimensions: 5.5MM – 1100MM
Form : Round Bars, Square Bars
Materials Grades: Stainless Steel 1.4122
| Grade | C | Si | Mn | P | S | Cr | Mo | N | Others |
| SS 1.4122 | 0.33-0.45 | max 1.00 | max 1.5 | max 0.040 | max 0.015 | 15.5-17.5 | 0.80-1.30 | max 1.00 | – |
| Yield Rp0.2 (MPa) | Tensile Rm (MPa) | Impact KV/Ku (J) | Elongation A (%) | Reduction in cross section on fracture Z (%) | As-Heat-Treated Condition | Brinell hardness (HBW) |
| 869 (≥) | 926 (≥) | 41 | 44 | 23 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 444 |
| EN | DIN | AFNOR |
| 1.4122 | 1.4122 – X 39 Cr Mo 17 1 | Z 38 CD 16-01 |
Yes, Stainless Steel 1.4122 flat bars can be welded, though preheating and post-weld heat treatment may be necessary to reduce the risk of cracking and ensure optimal weld quality.
Yes, Stainless Steel 1.4122 flat bars can be heat treated. It is typically hardened by quenching and tempering, allowing control over hardness and strength for specific applications.
Stainless Steel 1.4122 flat bars resist corrosion due to their high chromium content, forming a passive oxide layer that protects the material from oxidation and corrosion in various environments.
These flat bars find extensive use in manufacturing pump components, valve parts, spindles, shafts, mechanical tools, and wear-resistant machine components. Their hardness and polishability make them ideal for crafting cutlery, surgical instruments, and precision tools. In the automotive industry, they are utilized for brackets, structural parts, and components that experience friction and stress. Additionally, these flat bars are employed in textile machinery, household appliances, and general engineering where dependable strength and moderate corrosion resistance are essential. Their versatility and durability make 1.4122 flat bars a reliable material across various industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
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