You Are Here: Home - Products - EN 10305 Galvanized Hydraulic Seamless Steel Tube
EN 10305 Galvanized Hydraulic Seamless Steel Tube
product description Standard: EN10305-4(DIN2445/2), EN10305-1(DIN2391), 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
Surface treatment: galvanized--this tubes with a zinc coating of 8 to12μm and subsequently
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
  • Anti-rust
    No any corrosion after 120 hours' salt spray test
  • Galvanized
    Cold galvanized(electrogalvanizing) in bright pipe
  • Color
    White, yellow and colorful
  • Bending
    No zinc coating drops when bending
  • Pressure sheet
    Professional high pressure hydraulic tubing
Product Video

Cold drawn / cold rolled: High dimensional accuracy, excellent internal and external wall finish

Eddy current testing: Each steel pipe is tested by eddy current flaw detection to ensure product quality

Anaerobic bright heat treatment (NBK): When the seamless steel pipe is annealed, vacuum is applied and ammonia-decomposed nitrogen and hydrogen are injected for protection heating, heat preservation and cooling. It maintains the original rolling accuracy and smoothness of the steel pipe, and has excellent mechanical properties and metallographic structure.

Surface treatment (galvanized): We use environmentally-friendly electro-galvanized technology to form a uniform, dense, and well-combined galvanized layer (over 12μm) on the surface of seamless steel pipes, making it extremely resistant to corrosion and rust.

 

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
Get In Touch With Us

You can contact us via phone, email, online chatting, or filling the following form. Feel free to ask, advice or
give us feedback on our products or service.