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- Main products: pipe fitting, ASTM A335 alloy pipe, Bi-metal clad pipe, Ceramic lined pipe, Elbow fittings
Home > Products > Alloy steel pipe > ASTM A333 Grade 7 Seamless Pipes
ASTM A333 Grade 7 Seamless Pipes
- 1000 Ton / Tons per Month
- Shanghai
- T/T L/C D/P D/A
- 30 days
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Product Details
| Certification | UL | Thickness | 10, 30 | |
| Alloy Or Not | Is Alloy | |||
| Special Pipe | Thick Wall Pipe | Section Shape | Round | |
| Outer Diameter | 100, 500 |
Product Description
ASTM A333 Standard covers seamless and welded steel pipe for low temperature service. The ASTM A333 Grade 7 steel involved is similar to AISI 4032 low alloy steel. ASTM A333 Grade 7 pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation.
Outer Dimensions: 19.05mm-114.3mm
Wall Thickness:2.0mm-14 mm
Length: max 16000mm
Chemical Composition Inspection, Mechanical Properties Test
Tensile Strength,Yield Strength, Elongation, Flaring, Flattening, Bending, Hardness, Impact Test
Surface and Dimension Test,No-destructive Test, Hydrostatic Test.
Note 1: The dimensionless designator NPS (nominal pipe size) has been substituted in this standard for such traditional terms as “nominal diameter”, “size”, and “nominal size”.
Strike temperature condition：
| Crade | The lowest temperature for strike test | |
| ℉ | ℃ | |
| ASTM A333 Grade 1 | -50 | -45 |
| ASTM A333 Grade 3 | -150 | -100 |
| ASTM A333 Grade 4 | -150 | -100 |
| ASTM A333 Grade 6 | -50 | -45 |
| ASTM A333 Grade 7 | -100 | -75 |
| ASTM A333 Grade 8 | -320 | -195 |
| ASTM A333 Grade 9 | -100 | -75 |
| ASTM A333 Grade 10 | -75 | -60 |
Mechanical requiremnts of ASTM A333 alloy pipe
| Standard | Grade | Tensile Strength (MPa） | Yield Point (MPa) | Elongation (%) | |
| Y | X | ||||
| ASTM A333 | Grade 1 | ≥380 | ≥205 | ≥35 | ≥25 |
| Grade 3 | ≥450 | ≥240 | ≥30 | ≥20 | |
| Grade 4 | ≥415 | ≥240 | ≥30 | ≥16.5 | |
| Grade 6 | ≥415 | ≥240 | ≥30 | ≥16.5 | |
| Grade 7 | ≥450 | ≥240 | ≥30 | ≥22 | |
| Grade 8 | ≥690 | ≥515 | ≥22 | ||
| Grade 9 | ≥435 | ≥315 | ≥28 | ||
| Grade 10 | ≥550 | ≥450 | ≥22 | ||
| Grade 11 | ≥450 | ≥240 | ≥18 | ||
Chemical Composition (%) of ASTM A333 steel pipe
| Standard | Grade | Chemical Composition (%) | ||||||||||
| C | Si | Mn | P | S | Cr | Ni | Cu | Mo | V | Al | ||
| ASTM A333 | Grade 1 | ≤0.30 | 0.40-1.06 | ≤0.025 | ≤0.025 | |||||||
| Grade 3 | ≤0.19 | 0.18-0.37 | 0.31-0.64 | ≤0.025 | ≤0.025 | 3.18-3.82 | ||||||
| Grade 4 | ≤0.12 | 0.18-0.37 | 0.50-1.05 | ≤0.025 | ≤0.025 | 0.44-1.01 | 0.47-0.98 | 0.40-0.75 | 0.04-0.30 | |||
| Grade 6 | ≤0.30 | ≥0.10 | 0.29-1.06 | ≤0.025 | ≤0.025 | |||||||
| Grade 7 | ≤0.19 | 0.13-0.32 | ≤0.90 | ≤0.025 | ≤0.025 | 2.03-2.57 | ||||||
| Grade 8 | ≤0.13 | 0.13-0.32 | ≤0.90 | ≤0.025 | ≤0.025 | 8.40-9.60 | ||||||
| Grade 9 | ≤0.20 | 0.40-1.06 | ≤0.025 | ≤0.025 | 1.60-2.24 | 0.75-1.25 | ||||||
| Grade 10 | ≤0.20 | 0.10-0.35 | 1.15-1.50 | ≤0.03 | ≤0.015 | ≤0.15 | ≤0.25 | ≤0.015 | ≤0.50 | ≤0.12 | ≤0.06 | |
| Grade 11 | ≤0.10 | ≤0.35 | ≤0.6 | ≤0.025 | ≤0.025 | ≤0.50 | 35.0-37.0 | ≤0.50 | ||||
Referenced Documents
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A671 Specification for Electric-Fusion-Welded Steel Pipe for Atmospheric and Lower Temperatures
A999/A999M Specification for General Requirements for Alloy and Stainless Steel Pipe
E23 Test Methods for Notched Bar Impact Testing of Metallic Materials
ASTM A333 alloy pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation.
ASTM A333 alloy pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation. All seamless and welded pipes shall be treated to control their microstructure.
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