Commodity

Size

Size tolerance

Thickness

Length Tolerance

Circle Pipe

Φ13~Φ25.4

±0.10

0.5~1.5

+50mm

Φ18~Φ25.4

±0.10

1.5~2.0

+50mm

Φ25.4~Φ34

±0.10

0.7~2.0

+50mm

Φ34~Φ50.8

±0.12

0.8~3.0

+50mm

Φ50.8~Φ79.2

±0.12

1.0~3.0

+50mm

Square Pipe

16×16~25.4×25.4

±0.15

0.7~2.0

+50mm

30×30~50×50

±0.20

1.0~3.0

+50mm

60×60

±0.15

0.7~2.0

+50mm

100×100--200×200

±0.60

3.0~6.0

+50mm

Rectangle Pipe

10×20~20×40

±0.20

0.8~1.5

+50mm

20×40~30×50

±0.25

1.0~2.5

+50mm

25×70~38.1×76.2

±0.25

1.2~2.5

+50mm

30×60~40×80

±0.30

1.2~2.5

+50mm

120×60~150×250

±0.60

3.0~6.0

+50mm

Ellipse Pipe

Φ10×20~Φ20×40

±0.20

0.8~1.5

+50mm

Φ30×60~Φ20×100

±0.30

1.2~2.5

+50mm