ASTM A519 seamless steel mechanical tube

/ / Published in Pipes

This specification 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.

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 This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

standard: ASTM A519-06
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.

Grade:

ASTM A519 1020
ASTM A519 1025
ASTM A519 1035
ASTM A519 1045
ASTM A519 4130
ASTM A519 4140

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 ● ● ● ● ● ● ● ●

ASME SA519 Standard Pipes Mechanical Properties :

Properties Metric Imperial
Tensile strength 490 MPa 71100 psi
Yield strength 415 MPa 60200 psi
Bulk modulus (typical for steel) 140 GPa 20300 ksi
Shear modulus (typical for steel) 80.0 GPa 11600 ksi
Elastic modulus 190-210 GPa 27557-30458 ksi
Poisson’s ratio 0.27-0.30 0.27-0.30
Elongation at break (In 50 mm) 15.00% 15.00%
Reduction of area 40.00% 40.00%
Hardness, Brinell 143 143
Hardness, Knoop (converted from Brinell hardness) 163 163
Hardness, Rockwell B (converted from Brinell hardness) 78 78
Hardness, Vickers (converted from Brinell hardness) 149 149
Machinability (based on AISI 1212 steel as 100 machinability.
The machinability of Group I bar, rod, and wire products can be improved by cold drawing.)		 75 75

applications of ASTM A519 seamless steel mechanical tube

For mechanical engineering purposes.

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

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

 

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