CF8M Stainless Steel Properties, Composition & Equivalent
CF8M ASTM A743 / A744 / A351 Grade（UNS）：J92900 Alloy Family: Austenitic stainless steel Equivalent: 316 stainless steel
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What is CF8M Stainless Steel ?
CF8M austenitic stainless steel is an improved version of CF8. Molybdenum is added to the alloy of CF8 to increase its corrosion resistance. CF8M is widely used in the environment with serious chloride corrosion. This alloy is often used in the annealing stage of stainless steel after welding and can be used at 1500 ℉.
CF8M applications include flanges, fittings, valves and other components.
Equivalent: 316 stainless steel
CF8M chemical composition
| C | Mn | Si | P | S | Cr | Ni | Mo | |
| Max | 0.08 | 1.5 | 1.50 | 0.04 | 0.04 | 21.0 | 12.0 | 3.0 |
| Min | – | – | – | – | – | 18.0 | 9.0 | 2.0 |
Heat treatment
The solid solution treatment was carried out at 1010 ~ 1150 ℃ for 3 min
Tempering treatment should be carried out after holding for 1.5 hours at 430 ℃～ 480 ℃
Mechanical Properties
| Grade | CF8M |
| Reduction of Area, min / % | – |
| Yield Strength, min | Ksi – 30, MPa – 205 |
| Tensile Strength, min | Ksi – 70, MPa – 485 |
| Elongation[50mm], min / % | 30 % |
Features
- Excellent corrosion resistance
- Good heat resistance
- Good low temperature strength
- Good processability
- It can work in high corrosive environment
Applications
- Environmental protection industry
- Chemical industry
- Household appliances
- Food industry
- Heat exchanger
CF8M equivanlent
316 stainless steel
Due to the addition of Mo, 316 stainless steel has excellent corrosion resistance, atmospheric corrosion resistance and high temperature strength, and can be used under harsh conditions; it has excellent work hardening (non-magnetic). It is widely used. Environmental protection industry: industrial waste gas, garbage and sewage disposal devices; chemical industry: pumps, valves, pipes, etc.; daily household appliances: washing machine cylinder, water heater liner, microwave oven shell, refrigerator lining
What is the difference between 304 vs 316 stainless steel ?
304 and 316 are the most widely used and popular stainless steels. Although the two kinds of stainless steel look almost the same, there are also differences between them. Now we analyze 304 vs 316 stainless steel. According to your budget, they can save your cost in the use of alloy steel products. The difference between 304 vs 316 stainless steel is mainly reflected in price and corrosion resistance. If you want to apply in a high corrosive environment, 316 stainless steel can greatly increase the service life. If not, 304 stainless steel can be used.
What is the difference between 316 vs 316L stainless steel ?
The difference in composition leads to the use of 316 and 316L in different applications, with the 316L more suitable for manufacturing processes that require a lot of soldering because the lower carbon content minimizes harmful carbide deposits. The 316L is the medical implant of choice in more cases than the 316.
What is the difference between 316 vs 410 stainless steel ?
Compared with 410 stainless steel, 316 stainless steel has stronger corrosion resistance and weldability, and is used more widely. But it is also more expensive. 316 stainless steel in rust and corrosion resistance is far better than 410 stainless steel, but in some special occasions, 316 stainless steel can not replace 410 stainless steel