NEW-ERA STEEL TUBE TECHNOLOGY CO.,LTD
NEW-ERA STEEL TUBE HOLDING NINGBO PIPEWAY TRADE CO.,LTD
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ASTM A334 Gr1, Gr6, Gr8
Seamless and Welded Carbon and Alloy Steel Tubes for Low Temperature Service
| Product Name | ASTM A334 Low Temperature Service Steel Tubes |
| Material | Gr1, Gr6, Gr8 etc |
| Delivery Condition | Heat Treatment |
| Standard | ASTM A334 |
| Application | Boiler, Heat Exchanger, Condensers and similar heat transfer apparatus |
| Certificate | ISO 9001 |
| HS code | 7304319000 |
| Delivery Time | 45 days |
| Packing | Bundles or Wooden Boxes |
The pipes are made by seamless or automatic welding process with no addition of no of filler metal in the welding operation.
All tubes Normalized by heating to a uniform temperature of not less than 845℃ and cool in air or in the cooling chamber of an atmosphere controlled furance.
Steel Material:
| Element | Compision, % | ||||||
| Gr1 | Gr3 | Gr6 | Gr7 | Gr8 | Gr9 | Gr11 | |
| C, max | 0.30 | 0.19 | 0.30 | 0.19 | 0.13 | 0.20 | 0.10 |
| Mn | 0.40-1.06 | 0.31-0.64 | 0.29-1.06 | 0.90 max | 0.90 max | 0.40-1.06 | 0.60 max |
| P, max | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 |
| S, max | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 | 0.025 |
| Si | - | 0.18-0.37 | 0.10 min | 0.13-0.32 | 0.13-0.32 | - | 0.35 max |
| Ni | - | 3.18-3.82 | - | 2.03-2.57 | 8.40-9.60 | 1.60-2.24 | 35.0-37.0 |
| Cr | - | - | - | - | - | - | 0.50 max |
| Cu | - | - | - | - | - | 0.75-1.25 | - |
| Co | - | - | - | - | - | - | 0.50 max |
| Mo | - | - | - | - | - | - | 0.50 max |
Tags: ASTM A334 Boiler Steel Tubes, Steel Tubes for Low temperature service, ASTM A334 Gr6, Boiler Tubes