BS S143 Stainless Steel Bar
Similar to 300 series stainless steels.
BS S143 stainless steel bars provide high strength and good toughness.
BS S143 is a precipitation-hardening stainless steel and a BS aerospace grade that combines moderate to good corrosion resistance and high mechanical strength in various applications. The alloy offers moderate to good corrosion resistance in various atmospheres, which is similar to 300 series stainless steel. Welding and machinability of the alloy are not problematic. All BS S143 billets (where practical) are subjected to ultrasonic inspection in compliance with British Standards. As the material shares common chemical composition traits with S144 and S145, the alloy may be precipitation hardened using different temperature ranges to achieve the same mechanical properties of these materials. This material also offers similar property combinations when compared to 17/4PH.
Applications
BS S143 finds typical use in aerospace and defence engineering and high-technology mechanical applications.
Stock Availability
We stock S143 stainless steel bars in the finally heat-treated condition as BS S143B (black bar), BS S143C (forgings) and BS S143D (bright bar).
Export Services
Our export team is well-versed in global shipping, whether by land, sea, or air, ensuring your international orders are handled with utmost care and efficiency.
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- Fasteners
- Gas turbine blades
- Undercarriage components
- Mechanical components
- Good corrosion resistance
- High strength
- Good toughness
- Good weldability
