ASTM B407 Uns N08810 Cold drawn alloy seamless pipe
ASTM B407 UNS N08810 cold-drawn seamless tubing is a nickel-chromium-iron alloy manufactured to ASTM B407 standards, renowned for its resistance to high temperatures, corrosion, and mechanical stress. A variety of Incoloy 800H, it offers excellent strength, oxidation resistance, and carburization resistance, making it well-suited for the chemical, petrochemical, power generation, and furnace manufacturing industries. The "cold drawing" process improves the tubing's toughness, hardness, and overall mechanical properties.
What is SB 407 N08800?
What is ASTM B407 pipe? ASTM B407 alloy is composed of nickel, iron, and chromium. This specification generally applies to seamless pipe and covers Incoloy 800 and Incoloy H/HT.
ASTM B407 Incoloy 800H tube Mechanical Properties
| Alloy | Tensile Stress (MPa) min | Yield Stress 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 800H | Psi - 75,000 , MPa - 520 | Psi - 30,000 , MPa -205 | 30 | - | - |
ASTM B407 Incoloy 800H tube Chemical Composition
| Grade | ASTM B407 Incoloy 800H | |
| min | max | |
| C | 0.05 | 0.1 |
| Mn | – | 1.5 |
| Si | – | 1 |
| Al | 0.15 | 0.6 |
| Ti | 0.15 | 0.6 |
| P | – | – |
| S | – | 0.015 |
| Cr | 19 | 23 |
| Ni | 30 | 35 |
| Cu | – | 0.75 |
| Fe | 39.5 | – |
B407 Incoloy 800H tube Physical Properties
| Grade | ASTM B407 Incoloy 800H | |
| Density | 7.94 g/cm3 | |
| Melting Point | 1385 °C (2525 °F) | |
Industrial Uses:
Chemical and petrochemical plants.
Furnace manufacturing.
Process piping and heat exchangers.
Power generation.
The role of cold drawing
The cold drawing process involves forming pipe at room temperature to increase its mechanical strength and toughness. This manufacturing method is suitable for pipes requiring high hardness and strength to meet demanding applications.
B407 Incoloy 800H Pipe Applications
Natural Gas Processing Industry
Petrochemical Industry
Power Generation Industry
Food Processing Industry
Chemical Industry
Oil and Gas Industry
Fertilizer Industry
Sugar Industry
800H/HT alloy is widely used in a variety of applications exposed to corrosive environments and high temperatures, such as heat treatment equipment, chemical and petrochemical processing, nuclear power plants, and the pulp and paper industry. Heat treatment equipment such as baskets, trays, and fixtures utilize Incoloy 800H/HT alloy. The chemical and petrochemical processing industries use this alloy for heat exchangers and other piping systems exposed to nitric acid, particularly where resistance to chloride stress corrosion cracking is required. Power plants use it for superheater and reheater piping.
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.
