Stainless Seamless Steel Tubes / Pipes TP420 ( JIS SUS420J1 /
SUS420J2 )
Type 420 UNS S42000 Stainless Steel provides both outstanding
corrosion resistance and exceptional
wear resistance. To obtain the best possible strength and wear resistance, oil
quenching alloy 420 at a temperature
between 1800° F and 1950° F.
Because of its air hardening properties, type 420 Stainless Steel
is not often welded.
When welded 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.
Grade 420 stainless steel is a higher carbon version of 410; like
most non-stainless steels it can be hardened by heat treatment.
It contains a minimum of 12 per cent chromium, just sufficient to
give corrosion resistance properties.
It has good ductility in the annealed condition but is capable of
being hardened up to Rockwell Hardness 50HRC.
Best corrosion resistance is when the metal is hardened and surface
ground or polished.
| Grade | C | Cr |
| SUS420J1 | 0.16~0.25 | 12.00~14.00 |
| SUS420J2 | 0.26~0.35 | 12.00~14.00 |
For Details, please Contact
WUXI GUANGLU Special Steel Co., Ltd.
Stainless martensitic • precipitation hardening steel • stainless
ferritic — Our answer to your needs
Tel: +86 510 81812873
Email: export@guanglusteel.com
