
About Bright Annealed ASTM B829 Seamless Nickel Alloy GH3030 Pipe
Bright Annealed ASTM B829 Seamless Nickel Alloy GH3030 Tubing
GH3030 tubing is used in steam generator piping in the nuclear power industry, high-temperature aircraft systems, and oil and gas production projects requiring corrosion-resistant, pressure-resistant, and high-temperature pipes.
What is the composition of GH3030?
GH3030 alloy is primarily composed of nickel (approximately 55%), chromium (approximately 19%), and iron (approximately 18%), with smaller amounts of other elements such as cobalt, molybdenum, and aluminum.

ASTM B829 bright annealed seamless tubing made from GH3030 nickel alloy is a high-temperature, high-strength, corrosion-resistant component suitable for demanding industrial applications such as aerospace, gas turbines, and chemical processing. ASTM B829 specifies general requirements for nickel and nickel alloy seamless tubing, and GH3030 alloy exhibits excellent hot strength, oxidation resistance, and creep resistance up to approximately 800°C. The "bright annealed" surface treatment, performed in a controlled atmosphere, produces a clean, oxidation-free surface for enhanced corrosion resistance and sealing properties.
| Specifications of High Temperature Gh3030 PIPES / TUBE: |
| Grade | High Temperature Gh3030 |
| Range | 1/2″ Nominal Bore To 16″Nominal Bore |
| Length | Single Random, Double Random & Cut Length. |
| Finish | Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated) |
| Form | Round, Square, Rectangular, Hydraulic Etc |
| Type | Seamless / ERW / Welded / Fabricated / EFW |
| Applications | Off-Shore Oil Drilling Companies, Power Generation, Petrochemicals, Gas Processing, Specialty Chemicals, Pharmaceuticals, Pharmaceutical Equipment, Chemical Equipment, Sea Water Equipment, Heat Exchangers, Condensers, Pulp and Paper Industry |
| CHEMICAL COMPOSITION OF High Temperature Gh3030 Pipe: |
| Grade | C | Mn | Si | S | Ti | Fe | Ni | Cr | P | Al |
| GH3030 | 0.12 max | 0.70 max | 0.80 max | 0.02max | 0.15-0.35 | 1.5max | balance | 19.00 – 22.00 | 0.03 | 0.15 |

Gnee Steel specializes in the production and sale of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy Alloy 800, Incoloy 800H/HT, Incoloy 825, Monel Alloy 400, Monel K500, and high-temperature alloys. Gnee Steel's products are widely used in aerospace, chemical, electric power, automotive, and nuclear energy applications, and we can provide customized alloy solutions tailored to customer needs. For alloy pricing inquiries or customized alloy solutions, please contact us for a quote at ss@gneemetal.com.





