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ASTM A519 mechanical used precision carbon steel pipe
Jan 09, 2017

Specifications:

1.Standard:GB/T8713,GB/T3639,DIN2391,EN10305,ASTMA519,ASTMA106-2006

2.Grade: 20#(aisi1020,ck20),45#(aisi1045,ck45),st52(16Mn,Q345D),25Mn(stkm13c-t),27SiMn

3.OD:30-250mm

4.ID tolerance: H8,H9

5. Wall thickness:10%×ID

6.Surface roughness:Ra 0.02— 0.4μm

7. Delivery condition:BK,BKW,BKS,GBK,NBK

8.Application: widely used for hydraulic cylinder of carbon tube, heavy machinery of steel tube, textile machinery of seamless tube, printing machinery of cold drawn tube, oil drilling and other field.

9.Origin: China


Mechanical Property:

Delivery Condition

Cold drawn+ stress-relieved(BK+S)(SR)

Cold fished (hard)(BK)

Steel Grade

Tensile strength

(Rm Mpa)

Yield strength

Elogation A5%

Tensile strength

(Rm Mpa)

Elogation A5%

20#

≥520

 

≥375

≥15

≥550

≥8

45#

≥600

≥520

≥10

≥640

≥5

E355(Q345B,St52)

≥600

≥520

≥14

≥640

≥5

25Mn

≥600

≥510

≥15

≥640

≥5

27SiMn

≥760

≥610

≥10

≥800

≥5