Commonly used steel pipe grades for ASTM A333 cryogenic pipes include Gr.1, Gr.3, Gr.4, Gr.6, Gr.9, Gr.11, etc. Among them, Gr.6 is a commonly used grade in cryogenic pipes. Its yield strength is 241MPa, tensile strength is 415MPa, elongation is 30%, impact energy is 40J (0℃), and impact test temperature is -50℃. Its use The temperature is -45~150℃.
Standard Specification /SA 333 Grade 1/6 Seamless Pipe
Specifications: ASTM A333 / ASME SA333
Standard: ASTM, ASME, and API
Size Range: 1/2" - 24"
Schedules: STD, XH, 40, 80, 100, 120, 160, XXH
Form: Round, Square, Rectangular
Grade 6 Pipe Chemical Requirements:
| Element | Composition (%) |
|---|---|
| Carbon (max) | 0.30 |
| Manganese | 0.29-1.06 |
| Phosphorus (max) | 0.025 |
| Sulfur (max) | 0.025 |
A333 Grade 6 Pipe Mechanical Requirements:
| Psi | MPa | |
|---|---|---|
| Tensile Strength (min) | 60,000 | 415 |
| Yield Strength (min) | 35,000 | 240 |
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