Description

Carbon structure steel/carbon steel round bar/flat bar/carbon steel plate/sheet

Grade

GB Q255/JIS SS490/DIN S275J0/ASTM 1025

ChemicalComposition

C

Si

Mn

S

P

Cr

Ni

0.18-0.28

≤0.3

0.4-0.7

0.03(max)

0.03(max)

0.2(max)

0.2(max)

Standard

GB,JIS,ASTM,DIN,AISI,BS

Mechanicalperformance

Yield point≥255MPa

Tensile strenght 410-510MPa

Elongation≥24

Size

carbon steel plate/sheet:Thickness:20mm-100mm

Width: 500mm-3300mm

Length:7000mm-12000mm

carbon steel round bar:diameter 12-1600mm

Surface treatment

coated,2b or as your requirement

Inspecting

UTS according to SEP1921 C/c or GB/T6402

Quality Control

test products mechanical and chemical properties in every procedure

(third party inspection institution:CIQ,SGS,ITS,BV,etc)

Hardness

HBS=137~269

CharacteristicApplication

welding is well,Used for making normal mechinery parts,

such as bolt,chain,pull rod,shape steel,steel plate,flat bar steel and so on

Country

Steel NO.

C

Si

Mn

Cr

Mo

V

P

S

Ni

China GB

4Cr5MoSiV1

0.32-0.45

0.80-1.20

0.20-0.50

4.75-5.50

1.10-1.75

0.80-1.20

≤0.030

≤0.030

—

USA AISI

H13

0.32-0.45 

0.80-1.20 

0.20-050

4.75-5.50 

1.10-1.75 

0.80-1.20 

≤0.030

≤0.030

—

Japan JIS

SKD61

0.32-0.42 

0.80-1.20 

≤0.50 

4.50-5.50 

1.00-1.50 

0.80-1.20 

≤0.030

≤0.030

—