DIN2391 ST52 pre-honed tube

Manufacturer

Liaocheng Xinglong Seamelss Steel Pipe Manufacturing Co., ltd

Standard

DIN2391 EN10305

Material

ST44 ST45 ST52 E355 STKM13C

Heat treatment

BK+S

Specification

OD(mm)

ID(mm)

50-300mm

40-250

I.D Tolerance

H8-H9

Length

3-9m

Straightness

1/1000

ID roughness

RA 0.4micron(max)

Technology

Honed & SRB(SKIVED AND ROLLER BURNISHED )

Contact

SKYPE:zglpipe03

Mobile phone: 0086-18663029896

Steel grade

Chemical composition,%

C

Si

Mn

P

S

Cr

≤

20#

0.17-0.24

0.17-0.37

0.35-0.65

0.035

0.035

0.25

16Mn

≤0.2

≤0.5

1.00-1.60

0.03

0/03

0.25

ST52(E355)

≤0.22

≤0.55

≤1.6

0.025

0.025

0.25

SAE1026

0.22-0.28

0.15-0.35

0.6-0.9

0.04

0.05

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