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ASTM A333 is the standard specification for seamless and welded carbon and alloy steel pipes intended for use at low temperatures. These pipes are categorized into nine grades (1, 3, 4, 6, 7, 8, 9, 10, 11) based on temperature resistance and chemical composition. They are widely used in heat exchangers, pressure vessels, and industries requiring extreme cold resistance.
| Material Grade | ASTM A333 / ASME SA333 | Standard | ASTM A333 / ASME SA333 |
| Thickness Range | Schedule 20 To Schedule XXS | Width Range | 1/4 NB TO 30 NB (Nominal Bore Size) |
| Length Range | 5 To 7 Meters, 9 To 13 Meters, Single/Double Random Length | MOQ | 1 Ton |
| Lead Time | 10-30 days | Port of Shipment | Shanghai / Tianjin |
| C | See Grade Requirements | Si | Varies by Grade |
| Mn | Varies by Grade | P | ≤0.025 |
| S | ≤0.025 | Tensile Strength | Min 55,000 PSI |
| Yield Strength | Min 30,000 PSI |
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