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- API 5CT N80 casing and tubing pipe
- API 5CT K55 casing and tubing pipe
- API 5CT J55 casing and tubing pipe
- EN10028-2 16Mo3 Boiler and Pressure Vessel steel Plate Notch impact energy
- EN10028-2 P265GH Pressure vessels steel equivalents
- EN 10210 S355J2H low alloy carbon structural steel
- EN 10210 S355J0H steel hollow materials
- GB/T 18248 34CrMo4
- GB/T 18248 35CrMo alloy steel
- 30CrMo steel Heat treatment, 30CrMo steel tube/pipe
309/309S stainless steel Chemical Composition,309 / 309S stainless steel Machining service
309/309S stainless steel is typically used for elevated temperature applications. Its high chromium and nickel content provides comparable corrosion resistance, superior resistance to oxidation, and the retention of a larger fraction of room temperature strength than the common austenitic Alloy 304.
Due to their high chromium and nickel content, Alloys 309/309S stainless steel are highly corrosion resistant, have outstanding resistance to oxidation, and excellent heat resistance while providing good strength at room and elevated temperatures. The only significant difference between 309 and 309S is the carbon content. Alloy 309S has a much less carbon composition which minimizes carbide precipitation and improves weldability.
309/309S stainless steel Chemical Composition: (A167, A240)
| Element | Type 309 |
Type 309S |
| Carbon | 0.20 max. | 0.08 max. |
| Manganese | 2.00 max. | 2.00 max. |
| Sulfur | 0.030 max. | 0.030 max. |
| Phosphorus | 0.045 max. | 0.045 max. |
| Silicon | 0.75 max. | 0.75 max. |
| Chromium | 22.0 – 24.0 | 22.0 – 24.0 |
| Nickel | 12.0 – 15.0 | 12.0 – 15.0 |
309/309S stainless steel Mechanical Properties: (ASTM A167, A240)
| Type | Yield Strength 0.2% offset (KSI) | Tensile Strength (KSI) | % Elongation (2" Gauge length) | Hardness Rockwell |
| 309 | 30 min. | 75 min. | 40 min. | HRB 95 max. |
| 309S | 30 min. | 75 min. | 40 min. | HRB 95 max. |
Katalor Enterprises as a 309 / 309S stainless steel Manufacturer , we also can supply 309 / 309S stainless steel Machining service , so any need in 309 / 309S stainless steel , please contact us！