ASTM A333 Grade 3 Seamless and Welded Alloy Steel Pipe for
Low-Temperature Service
1. ASTM A333 Grade 3 Seamless Pipe
ASTM A333 Grade 3 is the part of standard covers wall seamless and
welded carbon and alloy steel pipe intended for use at low
temperatures.
ASTM A333 Grade 3 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 3 seamless and welded pipes shall be treated to
control their microstructure. Tensile tests, impact tests,
hydrostatic tests, and nondestructive electric tests shall be made
in accordance to specified requirements.
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
2. Application: Seamless and Welded Steel Pipe for Low-Temperature
Service.
Steel grade: ASTM A333 Grade 3
3. 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.
4. ASTM A333 Grade 3 Chemical Compositions(%)
| Compositions | Data |
| Carbon(max.) | 0.19 |
| Manganese | 0.31-0.64 |
| Phosphorus(max.) | 0.025 |
| Sulfur(max.) | 0.025 |
| Silicon | … |
| Nickel | 3.18-3.82 |
| Chromium | … |
| Other Elements | … |
5. Mechanical properties for ASTM A333 Grade 3 Alloy Steel
| Properties | Data |
| Yield strength(min) | 450 Mpa |
| Tensile strength(min) | 240 Mpa |
| Elongation(%, min) Y | 30 |
| Elongation(%, min) X | 20 |
6. Strike Temperature Condition for ASTM A333 Grade 3
| The lowest temperature for strike test |
| ℉ | ℃ |
| -150 | -100 |
7. Other ASTM Standards
A262 Practices for Detecting Susceptibility to Intergranular Attack
in Austenitic Stainless Steels
A941 Terminology Relating to Steel, Stainless Steel, Related
Alloys, and Ferroalloys
A1016/A1016M Specification for General Requirements for Ferritic
Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes
E112 Test Methods for Determining Average Grain Size
