tubos sin costura de acero al carbono negro 18" sch40 astm a106

Sales : Ms Grace : steelpipegz at gmail.com or grace at zhongxingsteelpipe.com 

                               Tel  : 86-635-8245816 Fax : 86-635-8245817

                                Mobile : 86-13963509487

Process

mostly by cold drawn for those small size seamless pipes

Delivery Condition

BK : Generally used for motorcycle parts like Shock absorber sliding column

BKW : Generally used for manufacturing automobile parts

BKS : Generally used for manufacturing All kinds of mechanical parts

GBK : Most commonly state which have a widely application scope

NBK : Oil well pipe is in this condition

Calculation of Theoretic Weight

? kg/m = {(OD – W.T) * W.T} * 0.02466

ASTM

GB 

JIS 

DIN

A106 Gr.B

20# 

G3461

St45.8

chemical composition;

GradeB

Carbon, max   

0.30

Manganes

0.29–1.06

 Phosphorus,max

0.035

Sulfur,max   

0.035

Silicon,min

0.10

Chrome,max 

0.4

Copper,max   

0.4

Molybdenum,max

0.15

Nickel,max 

0.40

 Vanadium,max 

0.08

tensile strength

MPa

yield point

MPa

elongation

(%)

A106B

410~550

245

24