ASTM A519 steel pipe,1010, 1020, 1026, 1045, 4130, 4140
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ASTM A519

 
seamless carbon and alloy steel mechanical tubing

 

Standard: ASTM A519

1. ASTM A519 seamless steel mechanical tube
2. Grade: 1020,1026,4140,4142,etc.

Standard: ASTM A519-06

Outside diameter:16mm~1016mm
Wall Thickness:2mm~120mm
Length:3m-14m,also can be manufactured according to customers' requirements
Type:Seamless(hot rolled and cold drawn) and hot expanding

Scope: Covers several grades of carbon and alloy steel seamless mechanical tubing. The grades are listed in Table-1. This specification covers both seamless hot-finished mechanical tubing and seamless cold-finished mechanical tubing.

Size Range: Covers tubes in size up to and including 12 3/4(323.8mm) outside diameter for round tubes with wall thicknesses as required.

Shape: The tubes shall be furnished in the following shapes, as specified by the purchaser: round, square,rectangular and special sections.


Chemical Composition& Mechanical Properties(Type: Cold Drawn Seamless Mechanical/CDS)

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 - - -
1035 0.32-0.38 0.60-0.90 0.040 0.050      
1045 0.43-0.50 0.60-0.90 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 0.040 0.15-0.35 0.80-1.10 0.15-0.25

4140

 0.38-0.43 0.75-1.00 0.040 0.040 0.15-0.35 0.80-1.10 0.15-0.25

 

Grade Condition Ultimate Strength Yield Strength Elongation Rockwell Hardness
Ksi Mpa Ksi Mpa % B scale
1020 HR 50 345 32 221 25 55
CW 70 483 60 414 5 75
SR 65 448 50 345 10 72
A 48 331 28 193 30 50
N 55 379 34 234 22 60
1025 HR 55 379 35 241 25 60
CW 75 517 65 448 5 80
SR 70 483 55 379 8 75
A 53 365 30 207 25 57
N 55 379 36 248 22 60
1035 HR 65 448 40 276 20 72
CW 85 586 75 517 5 88
SR 75 517 65 448 8 80
A 60 414 33 228 25 67
N 65 448 40 276 20 72
1045 HR 75 517 45 310 15 80
CW 90 621 80 552 5 90
SR 80 552 70 483 8 85
A 65 448 35 241 20 72
N 75 517 48 331 15 80
4130 HR 90 621 70 483 20 89
SR 105 724 85 586 10 95
A 75 517 55 379 30 81
N 90 621 60 414 20 89
4140 HR 120 855 90 310 15 100
SR 120 855 100 689 10 100
A 80 552 60 414 25 85
N 120 855 90 621 20 100

 

Please note the meaning of below abbreviation in table 2:
HR----Hot Rolled

CW----Cold Worked
SR----Stress Relieved

A----Annealed
N----Normalized 


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