ASTM A333 Grade 4 for seamless pipe and welded pipe
ASTM A333 Grade 4 is the part of standard covers wall seamless and welded carbon and alloy steel pipe intended for use at low temperatures. ASTM A333 Grade 4 alloy pipe shall be made by the seamless or welding process with the addition of no filler metal in the welding operation.
ASMT A333 Grade 4 seamless and welded pipes shall be treated to control their micro-structure. Tensile tests, impact tests, hydro-static tests, and nondestructive electric tests shall be made in accordance to specified requirements.
- Outer Dimensions: 19.05mm – 114.3mm
- Wall Thickness: 2.0mm – 14 mm
- Length: max 16000mm
| Carbon(max.) | Manganese | Phosphorus(max.) | Sulfur(max.) | Silicon | Nickel | Chromium | Al |
| 0.12 | 0.50-1.05 | 0.025 | 0.025 | 0.18-0.37 | 3.18-3.82 | 0.44-1.01 | 0.04-0.30 |
| Yield strength(min) | Tensile strength(min) | Elongation(%, min) Y | Elongation(%, min) X |
| 415 Mpa | 240 Mpa | 30 | 16.5 |
| The lowest temperature for strike test | |
| ℉ | ℃ |
| -150 | 100 |
Packing of ASTM A333 Grade 4:
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.
Click here to learn more about ASTM A333 Gr6.
