Parameter
Chemical Composition
Mechanical Properties
Product Namecarbon steel round bar
Outer Diameter6mm-1020mm, or as per requirements
Length500mm-6000mmor as customer request
StandardASME, ASTM, EN, BS, GB, DIN, JIS, etc
MaterialS235JR, S275JR, S355J2, S420NL,Gr 70
Prime Carbon structure steel

10#, 20#, 35#, 45#, 60#, 20Mn, 65Mn, B2, B3, JM20,

 SH45,S45C, C45 1015 1020 1025 1030 1035 1045 1050

Alloy structure steel

30Mn2, 40Mn2, 27SiMn, 42Crmo,20Cr, 40Cr, 20CrMo, 35CrMo,

 20CrMnTi, 30CrMnTi,20MnVB, 20MnTiB, 20CrNiMo, Q345B, 35MnBM,40MnB,36Mn2V,

45MnV,
Spring Steel65Mn, 60Si2Mn, 50CrVA
Bearing SteelGCr15, GCr15GD,55SiMoV
GradeCSiMnPSCuCrNi
Cor-ten A0.120.25-0.750.20-0.500.01-0.20.030.25-0.550.5-1.250.65
Cor-ten B0.160.3-0.50.8-1.250.030.030.25-0.400.4-0.65≤0.4
Gr 700.310.13-0.450.79-1.300.0250.0250.430.0340.43
S355J20.220.551.60.0250.0250.55--
S235JR0.170.551.40.0350.0350.55--
S275JR0.210.551.50.0350.0350.55--


Carbon content (wt.%)MicrostructurePropertiesExamples
Low-carbon steel< 0.25Ferrite, pearlite

Low hardness and cost. High ductility, 

toughness, machinability and weldability

AISI 304, ASTM A815, AISI 316L
Medium-carbon steel0.25 – 0.60Martensite

Low hardenability, medium strength,

 ductility and toughness

AISI 409, ASTM A29, SCM435
High-carbon steel0.60 – 1.25PearliteHigh hardness, strength, low ductilityAISI 440C, EN 10088-3
PACKING AND TRANSPORTATION

包装

PRODUCT

微信图片_20260112142835_665_158

TEST

微信图片_20260112142833_663_158

微信图片_20260112142830_662_158



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