Product Details


Honed Pipe

 

Inside Dia

 

(mm)

 

ID Tolerance (mm)

 

WT Tolerance 

 

(mm)

H7

H8

H9

H10

≤30

+0.021/0

+0.033/0

+0.052/0

+0.084/0

 

 

 

 

 

±7.5%

>210mm ±10%

30 - ≤50

+0.025/0

+0.039/0

+0.062/0

+0.100/0

50 - ≤80

+0.030/0

+0.046/0

+0.074/0

+0.120/0

80 - ≤120

+0.035/0

+0.054/0

+0.087/0

+0.140/0

120 - ≤180

+0.040/0

+0.063/0

+0.100/0

+0.160/0

180 - ≤250

+0.046/0

+0.072/0

+0.115/0

+0.185/0

250 - ≤315

+0.052/0

+0.081/0

+0.130/0

+0.210/0

315 - ≤700

+0.057/0

+0.089/0

+0.140/0

+0.230/0

 

 

Steel Grade

Chemical composition %

 

C

 

Si

 

Mn

P

S

Al

20#

0.17-0.24

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

/

Q345B

≤0.2

≤0.5

1.00-1.60

0.03

0.03

/

Q345D

≤0.2

≤0.5

1.00-1.60

0.03

0.03

0.015

25Mn

0.22-0.29

0.17-0.37

0.70-1.00

0.035

0.035

/

27SiMn

0.24-0.32

1.10-1.40

1.10-1.40

0.035

0.035

/

ST52

≤0.22

≤0.55

≤1.6

0.025

0.025

/

SAE1026

0.22-0.28

0.15-0.35

0.60-0.90

0.04

0.05

/

 

Delivery Condition

cold finished (hard) (BK)

cold drawn and stress-relieved (BK+S)

 

Steel Grade

Tensile Strength (Mpa)

Elongation (%)

Tensile Strength (Mpa)

Yield Strength (Mpa)

Elongation (%)

20#

≥550

≥8

≥520

≥375

≥15

45#

≥640

≥5

≥600

≥520

≥10

16Mn

≥640

≥5

≥600

≥520

≥14

25Mn

≥640

≥5

≥600

≥510

≥15

27SiMn

≥800

≥5

≥760

≥610

≥10

ST52

≥640

≥5

≥600

≥520

≥14

SAE1026

≥640

≥5

≥600

≥510

≥15

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