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Cold Bending Precision Seamless Steel Pipe Assembly
product description Surface treatment: galvanized--this tubes with a zinc coating of 8 to12μm and subsequently
Standard: EN10305-4(DIN2445/2) , EN10305-1( DIN2391/C) , ASTM A179
Steel Grade: E235 (ST35 ST37.4 ) , E355 (ST52 ST52.4)
Size: OD: 4-120mm, WT: 0.5-10mm, Length: Fixed 6m or as your requirement
Delivery condition: +N (NBK) normalized under controlled atmosphere
Delivery time: 15-45 days according to the quantity you need and if the goods in stock
Product Advantages
  • Cutting sleeve
    Cutting sleeve and nuts are imported from Germany- JS Brand
  • Bending capacity
    Maximum bending capacity: Φ 60*5mm
  • Cleanliness
    Ultrasonic cleaning of inner and outer walls of steel pipes
  • High pressure
    High pressure resistance, no leakage at connection points
  • Assemble
    Easy to assemble and high efficiency
Product Video

Work flow chart

Raw material–>Inspection chemical analysis, physical performance, sizes-

->Cutting–>Chamfer grinding (deburring)–>Pickling–>Saponifiation-

->Cold drawn / cold rolled–>Straightening–>Cleaning (Oil removal)-

->Eddy current testing –>Anaerobic bright heat treatment (NBK)-

->Straightening–>Dimensional accuracy and surface testing-

->Eddy current testing–>Physical performance test–>Surface treatment (galvanized)-

->Cleaning and packaging–>Stock

 

Dimension

OD Thickness(m  m)
mm
6 6*1 6*1.5 6*2                
8 8*1 8*1.5 8*2                
10 10*1 10*1.5 10*2                
12 12*1 12*1.5 12*2 12*2.5              
14 14*1 14*1.5 14*2 14*2.5 14*3            
15 15*1 15*1.5 15*2 15*2.5 15*3            
10*1 16*1 16*1.5 16*2 16*2.5 16*3            
18   18*1.5 18*2 18*2.5 18*3 18*3.5 18*4        
20   20*1.5 20*2 20*2.5 20*3 20*3.5 20*4        
22   22*1.5 22*2 22*2.5 22*3 22*3.5 22*4        
25     25*2 25*2.5 25*3 25*3.5 25*4        
28     28*2 28*2.5 28*3 28*3.5 28*4        
30     30*2 30*2.5 30*3 30*3.5 30*4 30*4.5 30*5    
32     32*2 32*2.5 32*3 32*3.5 32*4 32*4.5 32*5    
34     34*2 34*2.5 34*3 34*3.5 34*4 34*4.5 34*5 34*6  
35     35*2 35*2.5 35*3 35*3.5 35*4 35*4.5 35*5 35*6  
38     38*2 38*2.5 38*3 38*3.5 38*4 38*4.5 38*5 38*6  
40       40*2.5 40*3 40*3.5 40*4 40*4.5 40*5 40*6  
42       42*2.5 42*3 42*3.5 42*4 42*4.5 42*5 42*6  
45       45*2.5 45*3 45*3.5 45*4 45*4.5 45*5 45*6  
46       46*2.5 46*3 46*3.5 46*4 46*4.5 46*5 46*6  
48       48*2.5 48*3 48*3.5 48*4 48*4.5 48*5 48*6  
50       50*2.5 50*3 50*3.5 50*4 50*4.5 50*5 50*6  
54         54*3 54*3.5 54*4 54*4.5 54*5 54*6  
60         60*3 60*3.5 60*4 60*4.5 60*5 60*6 60*8

 

 

Chemical composition

Steel grade

C

max.

Si

max.

Mn

max.

P

max.

S

max.

Altot

min.

Name Number
E215 1.0212 0.10 0.05 0.7 0.025 0.015 0.025
E235 1.0308 0.17 0.35 1.2 0.025 0.015
E355 1.0580 0.22 0.55 1.6 0.025 0.015

 

 

Tolerance

Outer Diameter Allowable tolerance special tolerance
GB/T3639 DIN2391 OD WT
4mm-20mm ±0.10mm ±0.08mm ±0.05mm ±0.05mm
20mm-30mm ±0.10mm ±0.08mm ±0.08mm ±0.08mm
31mm-40mm ±0.15mm ±0.15mm ±0.10mm ±0.08mm
41mm-60mm ±0.20mm ±0.20mm ±0.15mm ±0.15mm
61mm-80mm ±0.30mm ±0.30mm ±0.20mm ±0.20mm
81mm-120mm ±0.45mm ±0.45mm ±0.30mm ±0.30mm

 

 

Mechanical Properties

Steel grade Yield strengtha Tensile strength Elongation
Name Number ReH  Rm A
min. min. min.
MPa MPa %
E215 1.0212 215 290 to 430 30
E235 1.0308 235 340 to 480 25
E355 1.0580 355 490 to 630 22
Application
For Agricultural Machinery
For Agricultural Machinery
EN-10305 precision seamless steel tubes are widely used in various agricultural machinery.
Learn More
For Heavy Truck
For Heavy Truck
SAE J524 precision seamless steel tubes are widely used in various heavy trucks and special vehicles.
Learn More
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