Carbon Seamless Steel Tube Round Shape For Low Temperature Service Astm A334
TORICH ASTM A334 Seamless Carbon Steel Tubes For Low Temperature Service
TORICH ASTM A334 Seamless Carbon Steel Tubes For Low Temperature Service
Material: 20#.45#.
Standard: ASTM A334, GB/T 18984, JIS G3460, JIS G 3464
Classification and code
The seamless steel tubes produced by this standard are divided into two types according to the processing methods of the products.
Hot rolled (expanded) steel tube WH
Cold drawn (rolled) steel pipe WC
Delivery state: Delivery of steel tubes in a normalizing state.
usage: This standard is applicable to low temperature pressure vessel pipe and heat exchanger pipe.
Characteristic: TEST:
Good concentricity Tension Test
Good surface quality Flattening Test
Good OD and ID tolerance Flare Test
High Precision Hardess Test
Stable quality Impact test
Smooth Roughness
TORICH QUALITY ASSURANCE
Steel grade and chemical composition
| Steel grade | Chemical composition/% | ||||||||
| C | Si | Mn | P | S | Ni | Mo | Co | Cu | |
| 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 6 | ≤0.30 | 0.10min | 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 11 | ≤0.10 | ≤0.35 | ≤0.60 | ≤0.025 | ≤0.025 | 35.0-37.0 | ≤0.50 | ≤0.50 | — |
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