
ASTM B626 UNS N06030 Welded Pipe
1. Standard: ASTM B626, ASME SB 626
2. OD: 1/2″NB – 48″NB
3. Thickness: SCH5~SCHXXS
4. End: Beveled End, Plain End
ASTM B626 UNS N06030 welded pipe is a specification for welded pipes made from a nickel-chromium-molybdenum alloy known as Alloy G30. This material is known for its excellent corrosion resistance, particularly in harsh environments such as those involving strong acids and high temperatures. It has a high resistance to pitting, crevice corrosion, and stress corrosion cracking. 2.4603 Hastelloy G-30 is widely used in phosphoric, sulfuric, and nitric acid processing industries, nuclear piping, petrochemical and fertilizer industries. With its welded construction, is available in a range of sizes (large diameter) and thicknesses to suit your specific needs.
ASTM B626 Hastelloy G30 Welded Tubing Applications:
- Chemical Processing
- Petrochemical Industry
- Power Generation
- Pharmaceuticals

ASTM B626 UNS N06030 Welded Tubes Specifications
| Standard | ASTM B626 / ASTM B619 |
| Size | 6.00 mm OD up to 914.4 mm OD |
| Thickness | 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS |
| Length | Within 13500mm |
| Type | Welded Pipes, Welded Tubes |
| Grades | ASTM B626 Welded Tube, Hastelloy G30 Welded Tube |
2.4603 Alloy g30 Typical Physical Properties
| Density | Electrical Resistivity | Thermal Conductivity | Melting Point | ||||
|---|---|---|---|---|---|---|---|
| lb/in3 | g/cm3 | µohm.in | µohm.m | btu.in/h.ft2.°F | W/m.°C | °C | °F |
| 0.297 | 8.22 | 45.7 | 1.16 | 69 | 10 | 1371 | 2500 |
Why Choose HT PIPE ?
- EN 10204/3.1B,
- Mill test certificate
- 100% Radiography Test Report
- Third Party Inspection Report, etc
- Excellent corrosive resistance,good thermal resistance
- Customer support after-sales service
- Huge Stock, Timely delivery
- Free Quote, Inquiry answered within 24 hours
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