Application of ASTM A53 Gr.A & Gr.B Seamless Steel Pipe
ASTM A53 Gr.A &Gr.B seamless steel pipe is for mechanical and pressure applications and is also acceptable for ordinary uses in steam, water, gas, and air lines. Besides, ASTM A53 Gr.A &Gr.B seamless steel pipe can also be applied for structural use, like piles, beams, pillars, fencing etc.Details of ASTM A53 Gr.A & Gr.B Seamless Steel Pipe We can supply:
Manufacture:Seamless process ,cold drawn or hot rolled Cold drawn: O.D.: 15.0～100mm W.T.: 2～10mm Hot rolled : O.D.: 25~700mm W.T.: 3~50mm Grade: Grade A and Grade B. Length: 6M or specified length as required. Ends: Plain End, Beveled End, ThreadedManufacturing Process of ASTM A53 Gr.A & Gr.B Seamless Steel Pipe
ASTM A53 Gr.A &Gr.B seamless steel pipe are produced either by cold-drawn or hot rolled, as specified.Chemical Composition of ASTM A53 Gr.A & Gr.B Seamless Steel Pipe
Grade and Chemical Composition (％)| Grade | C | Mn | P≤ | S≤ | Cu | Ni | Cr | Mo | V |
| Type S (Seamless pipe) | |||||||||
| Grade A | 0.25 | 0.95 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
| Grade B | 0.3 | 1.2 | 0.05 | 0.045 | 0.40 | 0.40 | 0.40 | 0.15 | 0.08 |
Mechanical Properties of ASTM A53 Gr.A & Gr.b Seamless Steel Pipe
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| Grade A | Grade B |
| Tensile strength, min, psi (MPa) | 48000 (330) | 60000 (415) |
| Yield strength, min, psi (MPa) | 30000 (205) | 35000 (240) |
Mechanical Tests for ASTM A53 Gr.A & Gr.b Black Seamless Steel Pipe
Appearance for ASTM A53 Gr.A & Gr.b Black Seamless Steel Pipe
A sufficient number of visual surface imperfections to provide seasonable assurance is necessary. The defect shall be removed or cut off within the limits of requirements on length. The finished pipe shall be reasonably straight.
Marking for ASTM A53 Gr.A & Gr.b Black Seamless Steel Pipe
Manufacturer's name or mark Specification number(year-date or required) Size( OD, W.T, length) Grade( A or B) Type of pipe( F, E, or S) Test pressure( seamless steel pipe only) Heat Number Any additional information specified in the purchase order.Packing for ASTM A53 Gr.A & Gr.b Black Seamless Steel Pipe
Bare pipe or Black / Varnish coating ( customized); 6"and below in bundles with two cotton slings; Both ends with end protectors; Plain end, bevel end(2"and above with bevel ends, degree: 30~35°), threaded and coupling; Marking.Permissible Variations in Weight and Dimensions
Weight –The weight of the pipes shall not vary more than ±10% from its specified weight (mass). Diameter-For pipes NPS 11/2 OR smaller, the outside diameter at any point shall not vary more than ±1/64 in. From the specified outside diameter. For pipes NPS 2 (DN50) or larger, the outside diameter shall not vary more than ±1% from the specified outside diameter. Thickness-The minimum wall thickness at any point shall be not more than 12.5% under the specified wall thickness.