stainless steel plate 420

420 stainless steel is a high-carbon steel with a minimum chromium content of 12%. Like any other stainless steel, grade 420 can also be hardened through heat treatment. It offers good ductility in its annealed state and excellent corrosion resistance properties when the metal is polished, surface grounded or hardened. This grade has the highest hardness - 50HRC - among all the stainless steel grades with 12% chromium.

Stainless steel grades that are similar to grade 420 stainless steels include martensitic steels such as the other versions of grade 420, having vanadium, sulphur and molybdenum in their composition, and the grade 440 series. Non-standard grade 420C has carbon content that is little higher than that of grade 420

 420 stainless steel composition and heat treatment

Chemical Composition / % Si Mn P S Ni Cr M0 C

1.00

1.00

O.035

O.030

0.60
12.00~14.00
0.60
0.16 ~O.25
Heat  treatment
(annealing)/℃
Tensile Strength hardness test Bending  test(180°)
ó0 .2
MPa
Ób
MPa
δ5
(%)
HBS HRB HV d-bent core diameter
          a-steel thickness
 
About 750 (fast-cooling)
or 800~900 (slow cooling)
225 520 18 223 97 234 d=2a

 420 stainless steel mechanical properties

420 Impact energy
Akv (J)
Elongation
δ5 (%)
Tensile Strengthσb (MPa) Yield Strength
σ0.2 (MPa)
Area reduction
ψ (%)
Hardness
Quenching and tempering ≥24 ≥12 ≥735 ≥540 ≥40 ≤235HB
Annealing           ≥217HB

 Equivalent steel grade of 420

JIS G4304

ASTM

UNS

KS

EN10095

AS

CNS

SUS420J1

420

S42000

STS420J1

1.4021

420

420J1

SUS420J2

-

-

STS420J2

1.4028

420J2

420J2

if you need 420 stainless steel plate ,please contact us!

 

Stainless steel plate

Sus 201

Sus 202

301

Sus304

304J1

304

304L

309S

Sus310s

321

316

316L

317L

410

420

430

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