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Cold drawn/rolled precision seamless steel pipes
Dec 05, 2017


Specification:

Delivery Condition

Cold finished

(hard)(BK)

Cold drawn and Destress annealing

(BK+S)

Steel grade

Rm MPa

Elongation A5(%)

Rm Mpa

ReH MPa

Elongation A5 (%)

20#

≥550

≥8

≥520

≥375

≥15

45#

≥640

≥5

≥600

≥520

≥10

16Mn

≥640

≥5

≥600

≥520

≥14

25Mn

≥640

≥5

≥600

≥510

≥12

27SiMn

≥840

≥5

≥800

≥720

≥10

ST45

≥550

≥5

≥520

≥375

≥15

ST52*

≥640

≥5

≥600

≥520

≥14

SAE1026

≥640

≥5

≥600

≥510

≥12


Size Range:


Processing form

I.D mm

Length

Straightness

I.D tolerance

I.D roughness

Cold-rolled

30-100

12M

0.3-1.0/1000

H8-H10

0.4-1.6μm

Cold-drawn

30-250

12M

H8-H10

0.8-1.6μm

Hone

40-500

12M

H8-H9

0.4-0.8μm

SRB

50-250

9M

H8

0.1-0.4μm


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