20Cr13 SUS420J1 Stainless Steel Plate
As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.
- Send E-mail: ss@gneesteel.com
- Tel: +8615824687445
Annealing
Annealing for ASTM AISI 420 wrought stainless steel.
Subcritical annealing (Recommended) temperature for AISI 420 stainless steel: from 675-760 °C (1245-1400 °F); Air cool from the temperature range, use the upper heating temperature range to minimize hardness. The corresponding Rockwell hardness is 94-97 HRB.
Full annealing temperature for type 420 steel: 830-885 °C (1525-1625 °F), and then soak thoroughly, furnace cool to 790 °C (1455 °F), continue cooling at 15-25 °C/h (27-45 °F/h) to 595 °C (1100 °F); Air cool to room temperature. The corresponding Rockwell hardness is 86-95 HRB.
Isothermal annealing temperature for AISI 420 grade stainless steel: Heat to 830-885 °C (1525-1625 °F); keep 2h at 705 °C (1300 °F), the corresponding Rockwell hardness is 95 HRB. (Preheat at subcritical annealing temperature range is very important.)
Hardening
Hardening for 420 grade stainless steel: Heating to austenitizing temperature 980-1065 °C (1800-1950 °F), quenching medium is air or oil, if the part thickness is > 0.25 in. (6.4 mm), oil quenching should be used. After quenching to room temperature, immediate cold treatment is recommended and the recommended cold treatment temperature is -75±10 °C (-100±20 °F), which can reduce austenite and keep maximum dimensional stability.
Tempering
AISI 420 steel (SS420) is very brittle under just hardened conditions and usually must be tempered to achieve useful toughness.
The tempering temperature for 420 grade stainless steel after austenitizing: 205-370 °C (400-700 °F). The corresponding tensile strength and Rockwell hardness are 1550-1930 MPa (225-280 ksi) and 48-56 HRC.
Stress Relieving
If the quenched SS420 does not temper immediately, the stress relief should be carried out quickly.
FAQ
Q: Can provide OEM/ODM service?
A: Yes. Please feel free to contact us for more details discuss.
Q: How is your Payment Term?
A: Our usual payment methods are T/T, L/C, D/A, D/P, Western Union, Money Gram, payment methods can be negotiated and customized with customers.
Q: Can I get samples before order ?
A: Yes, of course.We can produce by your samples or technical drawings ;
Q: Can I go to your factory to visit?
A: Of course, we welcome customers from all over the world to visit our factory ;
Hot Tags: 20cr13 sus420j1 stainless steel plate, China 20cr13 sus420j1 stainless steel plate suppliers, incoloy pipe stainless, lncoloy 926 alloy, inconel alloy metal tube, Incoloy Metal Tubing, monel 401 round bars, iron based alloy
You Might Also Like
Send Inquiry