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Honed/Skived and Roller Burnished Seamless Tube

Honed/Skived and Roller Burnished Seamless Tube

● Inner Diameter: 30~500mm

● Material: ST52, E355, S355J0H, S355J2H, ST45,  SAE1026, STKM13C, Q345B,                 Q345D,16Mn, 27SiMn, 25Mn, AISI 304, AISI 316, AISI 431

● Standard: DIN2391, EN10305, GB/T8713-88, GB/T3639-2000

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● Inner Diameter: 30~500mm

● Material: ST52, E355, S355J0H, S355J2H, ST45,  SAE1026, STKM13C, Q345B,                 Q345D,16Mn, 27SiMn, 25Mn, AISI 304, AISI 316, AISI 431

● Standard: DIN2391, EN10305, GB/T8713-88, GB/T3639-2000


Mechanical Property

Dellvery condition

Cold Finished（Hard）（BK)

Cold Drawn and Stress-relieved(BK+S)

Material  

Tensile Strength (Mpa)

Elongation (%)

Tensile Strength (Mpa)

Yiled Strength (Mpa)

Elongation (%)

Q345B

≥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

* Low temperature impact test upon request (27J/-20°C)


Size of ID(mm)

ID Tolerance(mm)


Tolerance of wall thickness

H8H9H10
30+0.033
0		+0.052
0		+0.084
0		<120mm(OD)  ±5%
≥120mm-210mm ±7.5%
>210mm ±10%
>30-50+0.039
0		+0.062
0		+0.100
0
>50-80+0.046
0		+0.074
0		+0.120
0
>80-120+0.054
0		+0.087
0		+0.140
0
>120-180+0.063
0		+0.100
0		+0.160
0
>180-250+0.072
0		+0.115
0		+0.185
0
>250-315+0.081
0		+0.130
0		+0.210
0
>315-400+0.089
0		+0.140
0		+0.230
0


Processing

ID (mm)

Length (m)

Straighthness (mm)

ID Tolerance

ID Roughness (μm)

Cold-rolled

30-100

≤12

0.3-1.0/1000

H8-H10

0.4-1.6

Cold-rolled

30-250

≤12

H8-H10

0.8-1.6

Hone

40-500

≤12

H8-H9

0.4-0.8

Skived and Roller Burnished

50-250

≤9

H8

0.1-0.4