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JIS G3106 SM400 steel
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JIS G3106 SM400 steel

JIS G3106 SM400 steel
SM400 is under the standard JIS G3106. SM400 includes three grades, SM400A, SM400B and SM400C.
The steel under the standard JIS G3106 is used for bridges, ships, vehicles, oil storage tank, vessel, and other structures with hot rolled steel ( Hereinafter referred to as the steel ), in particular, suitable for excellent weldability of hot rolled steel.
JIS G3106 SM400A/B/C chemical composition:


Grade

Chemical composition %

C

Si

Mn

P

S

JIS G3106 SM400A

Thk≤50mm ≤0.23
Thk>20-200 ≤0.25

-

>2.5*C

≤0.035

≤0.035

JIS G3106 SM400B

Thk≤50mm ≤0.20
Thk>20-200 ≤0.22

≤0.35

0.60-1.40

≤0.035

≤0.035

JIS G3106 SM400C

Thk≤100mm ≤0.18

≤0.35

≤1.40

≤0.035

≤0.035

JIS G3106 SM400A/B/C equivalent carbon content:


Thickness, mm

≤50

>50-≤100

>100

equivalent carbon content, %

≤0.44

≤0.47

According to the agreement

JIS G3106 SM400A/B/C mechanical properties:


Grade

Yield strength
N/mm2

Tensile strength N/mm2

Elongation

Thickness, mm

Thickness mm

Test sample

%

≤16

>16-40

>40-75

>75-100

>100-160

>160-200

JIS G3106 SM400A/B

≥245

≥235

≥215

≥215

≥205

≥195

400-510

≤5
>5-16
>16-50
>40

No5
No1A
No1A
No4

≥23
≥18
≥22
≥24

JIS G3106 SM400C

≥245

≥235

≥215

≥215

-

-

 

 

Katalor can supply you many kinds of JIS G3106 SM400A/B/C steel, such as steel plate, steel pipe, profile steel, weld steel pipe and square/rectangle hollow section. If you have any question for JIS G3106 SM400A/B/C steel, please contact with us freely!

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