ASTM A240 SS 420 Coil Mechanical Properties
Tempering Temperature (°C) | Tensile Strength (MPa) | Yield Strength | Elongation (% in 50mm) | Hardness Brinell (HB) | Impact Charpy V (J) |
Annealed * | 655 | 345 | 25 | 241 max | – |
204 | 1600 | 1360 | 12 | 444 | 20 |
316 | 1580 | 1365 | 14 | 444 | 19 |
427 | 1620 | 1420 | 10 | 461 | # |
538 | 1305 | 1095 | 15 | 375 | # |
593 | 1035 | 810 | 18 | 302 | 22 |
650 | 895 | 680 | 20 | 262 | 42 |
When welding with stainless steel type 420, preheat the steel to a temperature between 300° F and 400° F. After welding, temper the work piece at temperature for two hours. When hot working, it is recommended to gradually raise the temperature to 1400° F and then gradually raise the temperature to anywhere from 2000° F to 2200° F. While working, avoid letting the work temperature drop below 1600° F by frequently reheating the steel. To prevent cracking, furnace cool the work piece slowly after working. Any extreme cold forming will cause alloy 420 Stainless Steel to crack, but it can endure minor cold work.
Hot Tags: astm a240 ss 420 coil, China, suppliers, manufacturers, factory, buy, price, pricelist, for sale, in stock, free sample
