ASTM A53 Gr.B SSAW Steel Pipes are manufactured from high-quality carbon structural steel and undergo rigorous heat treatment processes, ensuring excellent mechanical properties and corrosion resistance. The tensile strength, yield strength, and elongation meet or exceed the standard requirements, enabling them to withstand high pressure and tensile loads, ensuring the safety and stability of pipeline systems. Additionally, these pipes exhibit superior wear resistance and impact resistance, effectively extending their service life.
Specification
Pipe type:Spiral seam welded steel pipe, Double-sided submerged arc welding steel pipe(DSAW steel pipe), helical submerged arc welded steel pipe,SSAW Pipe, SSAW Steel Pipe, Spiral Steel Pipe, Welded S
Size : OD:219-3500mm WT:1.65-40mm, Length: 6mtr-20mtr
Standard & Grade :ASTM A53 Grades A,B,C
Ends:Square Ends/Plain Ends (straight cut, saw cut, torch cut), Beveled/Threaded Ends
Chemical Requirements
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Type S |
Type E |
Type F |
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(electric- |
(furnace- |
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Grade A |
Grade B |
Grade A |
Grade B |
Grade A |
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Carbon max. % |
0.25 |
0.30* |
0.25 |
0.30* |
0.3 |
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Manganese % |
0.95 |
1.2 |
0.95 |
1.2 |
1.2 |
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Phosphorous, max. % |
0.05 |
0.05 |
0.05 |
0.05 |
0.05 |
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Sulfur, max. % |
0.045 |
0.045 |
0.045 |
0.045 |
0.045 |
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Copper, max.% |
0.40 |
0.40 |
0.40 |
0.40 |
0.4 |
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Nickel, max. % |
0.40 |
0.40 |
0.40 |
0.40 |
0.4 |
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Chromium, max. % |
0.40 |
0.40 |
0.40 |
0.40 |
0.4 |
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Molybdenum, max. % |
0.15 |
0.15 |
0.15 |
0.15 |
0.15 |
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Vanadium, max. % |
0.08 |
0.08 |
0.08 |
0.08 |
0.08 |
Permissible Variations in Wall Thickness
The minimum wall thickness at any point shall not be more than 12.5% under the nominal wall thickness specified.
Permissible Variations in Weights per Foot
Plus or minus 10%
Permissible Variations in Outside Diameter
Outside Diameter at any point shall not vary from standard specified more than:
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For NPS 1 1/2 and Smaller Sizes |
For NPS 2 and Larger Sizes |
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1/64″ over |
1/64″ under |
1% over |
1%under |
Tensile Requirements
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Seamless and Electric-resistance-welded |
Continuous-Welded |
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Grade A |
Grade B |
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Tensile Strength, min., psi |
48,000 |
60,000 |
45,000 |
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Yield Strength, min., psi |
30,000 |
35,000 |
25,000 |
Hydrostatic Testing
Hydrostatic inspection test pressures for plain end and threaded and coupled pipe are specified. Hydrostatic pressure shall be maintained for not less than 5 seconds for all sizes of seamless and electric-resistance-weld pipe.
Mechanical Tests Specified
Tensile Test - Transverse required on ERW for NPS 8 and larger.
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Degree of Bend |
Diameter of Mandrel |
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For Normal A53 Uses |
90 |
12 x nom dia. of pipe |
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For Close Coiling |
180 |
8 x nom dia. of pipe |
Flattening Test - NPS 2 and larger XM and lighter walls.
Lengths
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Standard Weight |
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Single Random - 16′ – 22′. 5% may be jointers. If Plain Ends - 5% may be 12′ – 16′. |
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Double Random - Shortest Length 22′, minimum average for order 35′. |
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Extra Strong and Double Extra Strong |
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Single Random - 12′ -22′. 5% may be 6′ – 12′. |
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Double Random (XS and lighter) - Shortest Length 22′, minimum average for order 35′. |
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Lengths longer than single random with wall thicknesses heavier than XS subject to negotiation. |
GNEE ASTM A53 GR.B Spiral steel pipe For sale
