The grade3 material in ASTM A252 standard is equals to the steel grade Q345B in GB standard.It’s used to make steel pipe piles.Grade1 and grade2 are also commonly used materials in ASTM A252 standard.Please contact us to get a quotation if you need any kind of seamless carbon steel pipes.
Specifications
| Standard | ASTM A252 |
| Steel Grade/Material | Gr.1,Gr.2,Gr.3 |
| OEM service | Provide |
| Outer Diameter(OD) | 1 1/2”-28”(38mm-720mm) |
| Wall Thickness(WT) | 2.6mm-60mm |
| Length | 5.8-16m or OEM |
| Packing | Plastic cap and bundling |
| Surface Treatment | Bare or 3pe,3pp,fbe anti-corrosion coated |
| Section Shape | Round |
| Technique | Seamless hot rolled |
| Application | Used to make steel pipe piles |
| Sour service | No |
| Place of Origin | China |
| MOQ | 25 ton |
| Transportation | 1.Sea port:Tianjin Xingang port,Qingdao port,Shanghai Luojing port →America,Europe,Africa,Middle East,India, Pakistan,Japan,Korea, Australia…(shipping)
2.Land port:Alataw pass port(Пограничный пункт “Алашанькоу”) |
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Tensile Requirements of ASTM A252 Steel Pipes |
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| Steel Grades | Grade1 | Grade2 | Grade3 |
| Tensile strength,min,psi(MPa) | 50000(345) | 60000(415) | 66000(455) |
| Yield point or yield strength,min,psi(MPa) | 30000(205) | 35000(240) | 45000(310) |
| Basic minimum elongation for nominal wall thickness 5/16 inch(7.9mm)or more: Elonggation in 8 inch(203.2mm),min,% Elonggation in 2 inch(50.8mm),min,% | 18 30 | 14 25 | … 20 |
| Basic minimum elongation for nominal wall thickness 5/16 inch(7.9mm),the deduction from the basic minium elongation in 2 inch(50.8mm) for each 1/32 inch(0.8mm) decrease in nominal wall thickness below 5/16 inch(7.9mm),in percentage points | 1.5 | 1.25 | 1 |
| Calculated Minimum Elongation Values of ASTM A252 Steel Pipes | ||||
| Nominal Wall Thickness | Elonggation in 2 inch(50.8mm),min,% | |||
| inch | mm | Grade1 | Grade2 | Grade3 |
| 5/16 or 0.312 | 7.9 | 30.00 | 25.00 | 20.00 |
| 9/32 or 0.281 | 7.1 | 28.50 | 23.75 | 19.00 |
| 1/4 or 0.250 | 6.4 | 27.00 | 22.50 | 18.00 |
| 7/32 or 0.219 | 5.6 | 25.50 | 21.25 | 17.00 |
| 3/16 or 0.188 | 4.8 | 24.00 | 20.00 | 16.00 |
| 11/64 or 0.172 | 4.4 | 23.25 | 19.50 | 15.50 |
| 5/32 or 0.156 | 4.0 | 22.50 | 18.75 | 15.00 |
| 9/64 or 0.141 | 3.6 | 21.75 | 18.25 | 14.50 |
| 1/8 or 0.125 | 3.2 | 21.00 | 17.50 | 14.00 |
| 7/64 or 0.109 | 2.8 | 20.25 | 16.75 | 13.50 |
