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ASTM A519

ASTM A519 covers several grades of carbon alloy steel mechanical tube, either hot-finished or cold-finished. In addition, ASTM A519 is widely used for mechanical engineering, pressure and transporting steam, water and gas etc.
 
ASTM A519 Carbon Alloy Pipe

ASTM A519 carbon tube

ASTM A519 covers for several grades of carbon and alloy steel mechanical tubing, either hot-finished or cold-finished. The steel used in the mechanical tubing may be cast in ingots or may be strand cast. When different steel grades are sequentially strand cast, identification of the resultant transition material is required. The seamless pipe is a tubular product made without a welded seam. It is usually produced by hot working steel, if necessary, by subsequently cold finishing the hot-worked tubular product to produce the desired shape, dimensions and properties. The tubes shall be furnished in the following shapes: round, square, rectangular and special sections. Heat analysis shall be made to determine the percentages of the elements specified. If secondary melting processes are used, the heat analysis shall be obtained from one remelted ingot or the product of one remelted ingot of each primary melt. The tubing shall be coated with a film of oil before shaping to retard rust when specified


Features Specifications:
OD (mm) Wall Thickness Unit (mm)
  2 2.5 3 3.5 4 4.5 5 6 6.5-7 7.5-8 8.5-9 9.5-10 11 12
Φ25-Φ28                
Φ32                
Φ34-Φ36                
Φ38                
Φ40                  
Φ42                  
Φ45                
Φ48-Φ60              
Φ63.5              
Φ68-Φ73                
Φ76        
Φ80        
Φ83        
Φ89        
Φ95        
Φ102        
Φ108        
Φ114          
Φ121          
Φ127          
Φ133          
Φ140            
Φ146            
Φ152            
Φ159            
Φ168            


Seamless Carbon and Alloy Steel Mechanical Tubing
Application

For mechanical engineering purposes.

For mechanical and high-pressure settings, as well as for transporting steam, water and gas.

Size(mm): O.D.: 20∼180; W.T.: 2-30; L: max 12000


Grade and Chemical Composition (%):

Grade

C Mn P≤ S≤ Si Cr Mo
1008

≤0.10

0.30-0.50

0.040 0.050 - - -
1010 0.08-0.13 0.30-0.60 0.040 0.050 - - -
1018 0.15-0.20 0.60-0.90 0.040 0.050 - - -
1020 0.18-0.23 0.30-0.60 0.040 0.050 - - -
1025 0.22-0.28 0.30-0.60 0.040 0.050 - - -
1026 0.22-0.28 0.60-0.90 0.040 0.050 - - -
4130 0.28-0.33 0.40-0.60 0.040 0.050 0.15-0.35 0.80-1.10 0.15-0.25
4140 0.38-0.43 0.75-1.00 0.040 0.050 0.15-0.35 0.80-1.10 0.15-0.25

 

Mechanical Properties:

Grade Condition MPa Tenslle Point Yield Point Elongation
1020 CW

≥414

≥483 ≥5%
  SR ≥345 ≥448 ≥10%
  A ≥193 ≥331 ≥30%
  N ≥234 ≥379 ≥22%
1025 CW ≥448 ≥517 ≥5%
  SR ≥379 ≥483 ≥8%
  A ≥207 ≥365 ≥25%
  N ≥248 ≥379 ≥22%
4130 SR ≥586 ≥724 ≥10%
  A ≥379 ≥517 ≥30%
  N ≥414 ≥621 ≥20%
4140 SR ≥689 ≥855 ≥10%
  A ≥414 ≥552 ≥25%
  N ≥621 ≥855 ≥20%
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