Sichuan Liaofu Special Steel Company is one of the most experienced manufacturers and suppliers of astm b637 b670 inconel 718 sheet in China. With over 20 years' experience, our factory offer high quality products made in China with competitive price. Welcome to contact us for wholesale service.
Inconel 718 sheet material suppliers in China
Sichuan Liaofu Special Steel Company.,Ltd was established in 2001, specialized in special steel production and inventory as the main business. In 2004, our company Chairman Mr.Mike Guo purchased a batch of advanced equipment for the production of hot rolled and forged products.After several years of development, our company has gradually formed a complete production and operation system of smelting, refining, forging , heat treatment.
The ASTM standards related to Inconel 718 mainly include ASTM B637 and ASTM B670
| Standard | Applicable Products | Chemical Composition | Mechanical Properties (after precipitation hardening) |
|---|---|---|---|
| ASTM B637 | Precipitation - hardening and cold - worked nickel alloy bars, forgings, and forging stock for moderate or high - temperature service (also provides references for Inconel 718) | Specific mass fractions required for elements like chromium, nickel, molybdenum, niobium, and tantalum. Limits for carbon, silicon, manganese, phosphorus, sulfur, copper, cobalt, aluminum, titanium, and boron. | Room - temperature: Tensile strength ≥ 1275 MPa; Yield point ≥ 1034 MPa; Elongation ≥ 6%; Reduction of area ≥ 8%; Hardness: HRC ≥ 36 |
| ASTM B670 | Precipitation - hardening nickel alloy (UNS N07718) plate, sheet, and strip for high - temperature service | Basically the same as ASTM B637 | Sheets ≤ 25.4 mm thick: Room - temperature tensile strength ≥ 1241 MPa; Yield point ≥ 1034 MPa; Elongation ≥ 12%. Sheets 25.4 - 57.2 mm thick: Room - temperature: Elongation ≥ 10%. Also, different thickness ranges have corresponding high - temperature mechanical property requirements. |
inconel 718 annealed properties
| Property Category | Details of Inconel 718 Annealed Properties |
|---|---|
| Mechanical Properties | Strength: Optimizes microstructure, uniform alloying element distribution, improves strength for high-stress applications. Ductility: Relieves internal stress, promotes recrystallization, enhances ductility for easy forming. Toughness: Shows good toughness, withstands impact and dynamic loads, crucial for sudden force/vibration applications. |
| Microstructural Properties | Grain Structure: Makes grains more uniform in size and shape, fine-grained structure improves mechanical properties and fatigue/creep resistance. Phase Stability: Maintains stability of phases like γ' and γ'', ensures proper distribution and contributes to overall performance. |
| Corrosion Resistance | General Corrosion Resistance: High nickel and chromium give excellent resistance. Annealing maintains and may enhance it via homogeneous microstructure, resistant in various corrosive environments. Pitting and Crevice Corrosion Resistance: Uniform microstructure from annealing improves resistance to these damaging forms of corrosion in aggressive fluid or oxygen-restricted areas. |
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