20# , 45# , 40# Rectngular Hollow Section Welded Steel Pipe / Steel Welded Structural Tube For Conta

Outer Diameter

/O.D/mm

20*30-400*600

Wall Thickness/

W.T/mm

1.3-17.75

Section Shape

Rectangular

Standard

ASTM A53, 

API5L GR.B,

DIN2440,

GB,BS3604,

DIN EN10219

Grade

Q195-Q345/

S235/S275/

S355/16Mn/

20#/45#/

20MN2/SS41/

A36/A35/

ST37/ST35

Special Pipe

Thick Wall Pipe

Type

Welded

Welded Line Type

Longitudinal 

Alloy Or Not

Non-alloy

Secondary Or Not

Non-secondary

Product

Specification/

O.D/mm

W.T/mm

Length/m

20*30

1.3,1.4,1.5,1.7,1.8,2.0,2.2,2.5-3.0

5.8 - 11.8 

or according 

customers’ requirements

20*40

1.3,1.4,1.5,1.7,1.8,2.0,2.2,2.5-3.0

30*40

1.3,1.4,1.5,1.7,1.8,2.0,2.2,2.5-3.0

25*40

1.3,1.4,1.5,1.7,1.8,2.0,2.2,2.5-3.0

25*50

1.3,1.4,1.5,1.7,1.8,2.0,2.2,2.5-4.0,4.25-5.0,5.25-6.0

30*50

1.3,1.4,1.5,1.7,1.8,2.0,2.2,2.5-4.0,4.25-5.0,5.25-6.0

30*60

1.3,1.4,1.5,1.7,1.8,2.0,2.2,2.5-4.0,4.25-5.0,5.25-6.0

40*50

1.3,1.4,1.5,1.7,1.8,2.0,2.2,2.5-4.0,4.25-5.0,5.25-6.0

40*60

1.3,1.4,1.5,1.7,1.8,2.0,2.2,2.5-4.0,4.25-5.0,5.25-6.0

50*70

1.3,1.4,1.5,1.7,1.8,2.0,2.2,2.5-4.0,4.25-5.0,5.25-6.0

40*80

1.3,1.4,1.5,1.7,1.8,2.0,2.2,2.5-4.0,4.25-5.0,5.25-6.0

50*80

1.3,1.4,1.5,1.7,1.8,2.0,2.2,2.5-4.0,4.25-5.0,5.25-6.0

60*80

1.3,1.4,1.5,1.7,1.8,2.0,2.2,2.5-4.0,4.25-5.0,5.25-6.0

100*40

1.3,1.4,1.5,1.7,1.8,2.0,2.2,2.5-4.0,4.25-5.0,5.25-6.0

60*90

1.3,1.5,1.7,1.8,2.0,2.2,2.5-4.0,4.25-5.0,5.25-5.75

60*100

1.3,1.5,1.7,1.8,2.0,2.2,2.5-4.0,4.25-5.0,5.25-5.75

50*100