What are the commonly used models of stainless steel pipes?

Let me introduce to you the 21 commonly used stainless steel pipes and their differences from the most commonly used 304 stainless steel pipes.

1. SUS304 stainless steel pipe;

2. SUS304 stainless steel pipe is equivalent to China’s 0Cr19Ni9 stainless steel pipe;

3. 201 series - chromium-nickel-manganese austenitic stainless steel pipe;

4. 300 series—chromium-nickel austenitic stainless steel pipe;

5. 301—good ductility, good weldability, wear resistance and fatigue strength better than 304 stainless steel pipe;

6. 302—The corrosion resistance is the same as 304, but the strength is better;

7. 303—Easier to cut than 304;

8. 309—has better temperature resistance than 304;

9. 316 - Mainly used in the food industry and surgical equipment; because it has better resistance to chloride corrosion than 304, it is also used as "marine steel";

10. Model 321—In addition to reducing the risk of material weld corrosion, other properties are similar to 304;

11. 400 series—ferritic and martensitic stainless steel pipe;

12. 408—Good heat resistance, weak corrosion resistance

13. 409—usually used as automobile exhaust pipe;

14. 410—Martensite (high-strength chromium steel), good wear resistance, poor corrosion resistance;

15, 416—The addition of sulfur improves the processing properties of the material;

16. 420 - "Blade grade" martensitic steel, used for surgical knives, which can be made very bright;

17. 430—ferritic stainless steel pipe, for decoration;

18. 440—High-strength cutting tool steel;

19. 500 series—heat-resistant chromium alloy steel;

20. 600 series—martensitic precipitation hardening stainless steel pipe;

21. 630—The most commonly used precipitation-hardened stainless steel pipe model.