Parameter
Chemical Composition
Mechanical Properties
Product NameSeamless Carbon Steel Pipe
Material

S235JR, S275JR, S355J2, S420NL,Gr 70

Outside8~100mm
Wall Thickness2mm~15mm
Unit Length3m, 5.8m, 6m, 11.8m, 12m, 13.5m or as per customers' request
Surface

Bare surface, varnish painting, galvanizing,

 other painting as per customers' request

Price TermsFOB, CRF, CIF, EXW all acceptable
Delivery DetailInventory about 5-7; custom-made 25-30
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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