a53 honed seamless pipe in superior quality

Product Item

a53 honed seamless pipe in superior quality

Outer Diameter

30mm~250mm

Wall Thickness

2mm~30mm

Material Grade

10#-45#, 16Mn, 25Mn,27SiMn, E355

Standard

GB/T8713, GB/T3639, DIN2391, EN10305

Application

Hydraulic Pipe, Hydraulic cylinder, automobile, oil drilling, textile machinery

Certificate

ISO9001:2008

Process Method

Cold Drawn/ Cold Rolled/Stress relieved, honed/SRB,Polishing

Package

According to the customer’s requirement

Delivery Time

20days more or according to the customer’s requirement

Price Item

FOB Yantai or as client's request

Payment

T/T or L/C or as client's request

ID tolerance

H7,H8,H9 or as customized

Finally supply condition

BK BKS BKW NBK GBK

Standard

Grade

Chemical composition (%)

C

Si

Mn

S

P

Cr

GB/T699

10#

0.07~0.13

0.17~0.37

0.35~0.65

≤0.035

≤0.035

GB/T3639-2000

20#

0.17~0.23

0.17~0.37

0.35~0.65

≤0.035

≤0.035

GB3077-88

35#

0.32~0.39

0.17~0.37

0.35~0.65

≤0.035

≤0.035

45#

0.42~0.50

0.17~0.37

0.50~0.80

≤0.035

≤0.035

40cr

0.37~0.44

0.17~0.37

0.50~0.80

≤0.035

≤0.035

0.08~1.10

25Mn

0.22~0.29

0.17~0.37

0.70~1.00

≤0.035

≤0.035

≤0.25

37Mn5

0.30~0.39

0.15~0.30

1.20~1.50

≤0.015

≤0.020

OD(mm)

ID(mm)

Tolerance

OD(mm)

ID(mm)

Wall thickness deviation(mm)

Ovality(mm)

Curvature(mm/m)

40-74

30-65

±0.01

-0.3,-0.5

≤0.5

≤0.1

0.3

74-98

65-85

±0.01

-0.4,-0.6

≤0.5

≤0.15

0.3

100-116

85-100

±0.02

-0.4,-0.6

≤0.6

≤0.15

0.3

124-134

110-115

±0.02

-0.6,-0.8

≤0.6

≤0.20

0.3

140-158

120-135

±0.02

-0.7,-0.9

≤0.8

≤0.20

0.3

165-176

140-150

±0.02

-0.7,-0.9

≤0.8

≤0.20

0.3

188-203

160-180

±0.02

-0.7,-0.9

(honed)

≤0.8

≤0.20

0.3