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400 series Martensitic and Ferritic
400 series Martensitic and Ferritic
400 series stainless steel is a kind of alloy combining iron, carbon and chromium. This has the Martensitic stainless steel and Fe element, so it has normal magnetic properties.

400 series Martensitic and Ferritic

400 series stainless steel is a kind of alloy combining iron, carbon and chromium. This has the Martensitic stainless steel and Fe element, so it has normal magnetic properties. 400 series stainless steel has a strong ability to resist high temperature oxidation. Compared with carbon steel, the physical and mechanical properties are improved further. Most of the 400 series stainless steel can be heat treatment.

400 series stainless steel is Ferritic stainless steel, the advantage is the price is relatively cheap than 300 series, but the antirust effect is relatively weaker than 300 series stainless steel.

403, 410, 416, 420, 430, 440 and etc. are straight chromium alloy, magnetic and can be hardened by heat treatment. It is used for fasteners, p ump shafts and turbine blades.


400 series stainless steelmm

Original

Grade

Finish

Thickness

Width

TISCO

409/410/420(J1/J2)/430(J1L)

No.1/2B/BA/2D/Mirror

0.28-16.0mm

1000-2000mm

LISCO

409/410/420(J1/J2)/430(J1L)

No.1/2B/BA/2D/Mirror

0.30-10.0mm

800-1600mm

POSCO

409/410/420(J1/J2)/430(J1L)

No.1/2B/BA/2D/Mirror

0.28-10.0mm

1000-1550mm

TISCO

409/410/420(J1/J2)/430(J1L)

No.1/2B/BA/2D/Mirror

0.28-16.0mm

1000-2000mm


Chemical elements(%)

Grade

C

Si

Mn

P

S

Ni

Cr

Cu

N

others

409

0.08

1.00

1.00

0.045

0.030

0.50

10.5-11.75

-

-

Ti 6C-0.75

430

0.12

0.75

1.00

0.040

0.030

0.60

16.0-18.0

-

-

-

441

0.025

1.00

1.00

0.040

0.030

1.00

17.0-20.0

-

0.025

Ti,Nb,Zr 8*(C+N)-0.8

436

≤1.12

1.00

≤1.00

0.040

0.030

-

16.00-18.00

-

-

-


Mechanical properties

Grade

Yield Strength

(Mpa)

Tensile Strength

(Mpa)

Elongation

(%)

Rockers Hardness

Vickers

Hardness

409

175

360

25

80

175

430

205

450

22

88

200

441

245

410

20

90

200

436

≥175

≥360

≥25

≤80

≤175





400 series Martensitic and Ferritic



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