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S31803

1. Standard

ASTM Standard:ASTM A789M

2.  Chemical Composition

Elements C Mn P S Si Cr Mo Ni N Cu
Min           21.0 2.5 4.5 0.08  
Max 0.030 2.0 0.030 0.020 1.00 23.0 3.5 6.5 0.20  
Actual value 0.02 1.21 0.020 0.001 0.40 22.46 3.11 4.88 0.19 0.13
 

 3. Mechanical Properties

Mechanical Properties Tensile Strength
MPa
Yield Strength
MPa
Elongation
%
Hardness
HBW/HRC
Min 620 450 25  
Max       290/30
Actual value 883 729 31 26.0

4. Typical Size

Size Outside Diameter
Mm
Permissible Variations
in Outside Diameter
mm
Wall Thickness
mm
Average Wall Permissible Variations
in Wall Thickness
44×2 44 ±0.25 2 ±10%S
 
Note:Standard requirements control range:OD:±0.25mm,WT:±10%S 

5.Typical Application Environment

1) Pressure vessels, pressure tanks, high pressure pipe, heat exchanger (chemical processing industry).
   
2) Oil and gas pipeline, heat exchanger pipe fittings
  
3) Sewage treatment system
   
4) Pulp and paper industry classifier, bleaching equipment and storage treatment system
   
5) Rotating shaft, press roll, blade, impeller, etc. under high corrosion resistance environment
 
6) Food processing equipment
 
 

Copyright ? Xinxing Pipes All rights reserved    ICP prepared 16003241 number

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