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420 stainless steel is a kind of martensitic stainless steel, which belongs to the high carbon grade. Under hardened conditions, it has good resistance to the atmosphere, has certain wear resistance and corrosion resistance, and has high hardness. It is suitable for various types of precision machinery, Bearings, electrical, equipment, instruments, meters, transportation, household appliances, as well as food tableware, stainless steel hospital equipment, etc.
1. 420 stainless steel has excellent corrosion resistance. Due to its high chromium content, it is able to form a dense protective film of chromium oxide, effectively preventing metal surfaces from being oxidized and corroded. Therefore, 420 stainless steel can still maintain good performance in humid, acidic or alkaline environments.2. 420 stainless steel has good mechanical properties. It has high strength and hardness and can withstand greater pressure and impact. This makes it widely used in fields such as manufacturing cutting tools, molds and mechanical parts.3. 420 stainless steel also has good heat treatment properties. By adjusting the heat treatment process, its organizational structure and mechanical properties can be changed to meet the needs of different applications. This makes it an ideal material for making high-quality knives and blades.4. 420 stainless steel has good processing performance. It can be formed and processed through cold working, hot working and welding processes, and can meet the needs of different shapes and sizes. This makes it widely used in manufacturing.| C | Mn | Si | P | S | Cr |
| 0.15 | 1.00 | 1.00 | 0.04 | 0.03 | 12.0-14.0 |
| Tempering Temperature (°C) | Tensile Strength (MPa) | Yield Strength 0.2% Proof (MPa) | Elongation (% in 50mm) | Hardness Brinell (HB) |
| Annealed * | 655 | 345 | 25 | 241 max |
| 399°F (204°C) | 1600 | 1360 | 12 | 444 |
| 600°F (316°C) | 1580 | 1365 | 14 | 444 |
| 800°F (427°C) | 1620 | 1420 | 10 | 461 |
| 1000°F (538°C) | 1305 | 1095 | 15 | 375 |
| 1099°F (593°C) | 1035 | 810 | 18 | 302 |
| 1202°F (650°C) | 895 | 680 | 20 | 262 |
Item | Stainless Steel Pipe/Tube | |
grade | 200 series,300 series,400 series | |
Standard | ASTM A213,A312,ASTM A269,ASTM A778,ASTM A789,DIN 17456, DIN17457,DIN 17459,JIS G3459,JIS G3463,GOST9941,EN10216, BS3605, | |
Material | 304,304L,309S,310S,316,316Ti,317,317L,321,347,347H,304N,316L, 316N,201,202，420 | |
Surface | Polishing,annealing,pickling,bright | |
Type | hot rolled and cold rolled | |
stainless steel round pipe/tube | ||
Size | Wall thickness | 1mm-150mm(SCH10-XXS) |
Outer diameter | 1mm-150mm(SCH10-XXS) | |
stainless steel square pipe/tube | ||
Size | Wall thickness | 1mm-150mm(SCH10-XXS) |
Outer diameter | 4mm*4mm-800mm*800mm | |
stainless steel rectangular pipe/tube | ||
Size | Wall thickness | 1mm-150mm(SCH10-XXS) |
Outer diameter | 1mm-150mm(SCH10-XXS) | |
Length | 4000mm,5800mm,6000mm,12000mm,or as required. | |
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