ASTM A333 Standard covers seamless and welded steel pipe for low temperature service. The Grade 6 steel involved is similar to AISI 4032 low alloy steel.
ASTM A333 Grade 6 pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation.Seamless and Welded Steel Pipe size for Low-Temperature Service:
- Outer Dimensions: 19.05mm – 114.3mm
- Wall Thickness:2.0mm – 14 mm
- Length: max 16000mm
Application: Seamless and Welded Steel Pipe for Low-Temperature Service.
Steel grade: ASTM A333 Grade 6
Packing: Bare packing/bundle packing/crate packing/wooden protection at the both sides of tubes and suitably protected for sea-worthly delivery or as requested.
Inspection and Test: 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.
Surface treatment: Oil-dip, Varnish, Passivation, Phosphating, Shot Blasting.
Both ends of each crate will indicate the order no., heat no., dimensions, weight and bundles or as requested.
Each length of pipe shall be subjected to the hydrostatic test. Also, each pipe shall be examined by a non-destructive examination method in accordance to the required practices.
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.
ASTM A333 Grade 6 Chemical Compositions(%)
| Compositions | Data |
| Carbon(max.) | 0.30 |
| Manganese | 0.29-1.06 |
| Phosphorus(max.) | 0.025 |
| Sulfur(max.) | 0.025 |
| Silicon | … |
| Nickel | … |
| Chromium | … |
| Other Elements | … |
Mechanical properties for ASTM A333 Grade 6 Alloy Steel
| Properties | Data |
| Tensile strength, min, (MPa) | 415 Mpa |
| Yield strength, min, (MPa) | 240 Mpa |
| Elongation, min, (%), L/T | 30/16.5 |
