Description OF ASTM A519 Seamless steel pipe
ASTM A519 Seamless steel pipe 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 steel of different grades is sequentially strand cast, identification of the resultant transition material is required. The seamless tubing is a tubular product made without a welded seam. It is usually manufactured by hot working steel, and if necessary, by subsequently cold finishing the hot-worked tubular product to produce the desired shape, dimensions and properties.
Test requirement: tension test, flattening test, flaring test, hardness test, hydrostatic or nondestructive electric test,etc.
Chemical Composition OF ASTM A519 Seamless steel pipe
ASTM A519 Seamless steel pipe 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 steel of different grades is sequentially strand cast, identification of the resultant transition material is required. The seamless tubing is a tubular product made without a welded seam. It is usually manufactured by hot working steel, and if necessary, by subsequently cold finishing the hot-worked tubular product to produce the desired shape, dimensions and properties.
Test requirement: tension test, flattening test, flaring test, hardness test, hydrostatic or nondestructive electric test,etc.
Chemical Composition OF ASTM A519 Seamless steel pipe
Grade
C
Mn
P≤
S≤
Si
Cr
Mo
1020
0.18-0.23
0.30-0.60
0.04
0.05
-
-
-
1025
0.22-0.28
0.30-0.60
0.04
0.05
-
-
-
4130
0.28-0.33
0.40-0.60
0.04
0.05
0.15-0.35
0.80-1.10
0.15-0.25
4140
0.38-0.43
0.75-1.00
0.04
0.05
0.15-0.35
0.80-1.10
0.15-0.25
Mechanical Properties OF ASTM A519 Seamless steel pipe
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%
Wall Thickness & Tolerance OF ASTM A519 Seamless steel pipe
Wall % of OD
Wall Tolerances Max % Over and Under
Nominal Wall
ID up to 1.499"
ID 1.500" and larger
Under 25%
+/- 10.0%
+/- 7.50%
Over 25%
+/- 12.5%
+/- 10.0%
Wall Thickness Tolerance (ASTM A519 HRS
Alloy)
Wall Thickness Range as a Percent of
Outside Diameter
% Over and Under Nominal Wall
OD up to 2.999"
OD 3.00"- 5.999"
OD 6.00"- 10.750"
Walls Under 15% of nominal O.D.
12.50%
10.00%
10.00%
Walls Over 15% of nominal O.D.
10.00%
7.50%
10.00%
Outer Diameter & Tolerance OF ASTM A519 Seamless steel pipe
Outside Diameter Size Range
Wall percent of Outside Diameter
Total Camber in any 3 ft.
Up to 5.000"
3% OD & Over
0.030"
5.001 / 8.000"
4% OD & Over
0.045"
8.001 / 10.750"
4% OD & Over
0.060"
DIMENSION SPECIFICATIONS OF ASTM A519 Seamless steel pipe
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