Audited Supplier
Introduction
LORK is a special stainless steel manufacturer with 20 years of manufacturing experience.
310 (UNS S31000) is an austenitic stainless steel developed for use in high temperature corrosion resistant applications. The alloy resists oxidation up to 2010oF (1100oC) under mildly cyclic conditions.
Because of its high chromium and moderate nickel content, 310 is resistant to sulfidation and can also be used in moderately carburizing atmospheres.
The more severe carburizing atmospheres of thermal process equipment usually require nickel alloys such as 330 (UNS N08330). 310 can be utilized in slightly oxidizing, nitriding, cementing and thermal cycling applications, albeit, the maximum service temperature must be reduced. Alloy 310 also finds usage in cryogenic applications with low magnetic permeability and toughness down to -450oF (-268oC). When heated between 1202 - 1742oF (650 - 950oC) the alloy is subject to sigma phase precipitation. A solution annealing treatment at 2012 - 2102oF (1100 - 1150oC) will restore a degree of toughness.
310S (UNS S31008) is the low carbon version of the alloy. It is utilized for ease of fabrication. 310H (UNS S31009) is a high carbon modification developed for enhanced creep resistance. In most instances the grain size and carbon content of the plate can meet both the 310S and 310H requirements.
Stainless Steel 310S Applications
Grade 310S stainless steel is widely used in the following applications:
▪ Cryogenic Components
▪ Food Processing
▪ Furnaces - burners, doors, fans, piping and recuperators
▪ Fluidized Bed Furnaces - coal combustors, grids, piping, wind boxes
▪ Ore Processing/Steel Plants - smelter and steel melting equipment, continuous casting equipment
▪ Petroleu Refining - catalytic recovery systems, flares, recuperators, tube hangers
▪ Power Generation - coal gasifier internals, pulverized coal burners, tube hangers
▪ Sintering/Cement Plants - burners, burner shields, feeding and discharging systems, wind boxes
▪ Thermal Processing - annealing covers and boxes, burner grids, doors, fans, muffles and retorts, recuperators, walking beams
Stainless Steel 310S Chemical Composition
Weight % (all values are maximum unless a range is otherwise indicated)
| Element | 310S |
| Cr | 24.0-26.0 |
| Ni | 19.0-22.0 |
| C | 0.08 max |
| Mn | 2.0 max |
| P | 0.045 max |
| S | 0.03 max |
| Si | 1.5 max |
Stainless Steel 310S Mechanical Properties
Values at 68°F (20°C) (minimum values, unless specified)
| 0.2% Offset Yield Strength | Ultimate Tensile Strength | Elongationin 2" | Hardness | ||
| Psi(min) | Mpa | Psi(min) | Mpa | % | Brinell (max) |
| 35,000 | 245 | 80,000 | 550 | 45 | 217 |
Fabrication Data
310S can be easily welded and processed by standard shop fabrication practices.
Hot Forming
Heat uniformly at 1742 - 2192°F (950 - 1200°C). After hot forming a final anneal at 1832 - 2101°F (1000 - 1150°C) followed by rapid quenching is recommended.
Cold Forming
The alloy is quite ductile and forms in a manner very similar to 316. Cold forming of pieces with long-term exposure to high temperatures is not recommended since the alloy is subject to carbide precipitation and sigma phase precipitants.
Welding
310S can be readily welded by most standard processes including TIG, PLASMA, MIG, SMAW, SAW and FCAW.
Available Sizes And Specifications
| 310S stainless steel pipe sizes and specifications | |
| Grade | 310S |
| Stainless steel seamless pipe | Outside diameter: 4.0 - 1219mm, Thickness: 0.5 -100mm,Length: 24000mm |
| Stainless steel welded pipe | Outside diameter: 6.0 - 2800mm, Thickness: 0.3 -45mm, Length: 18000mm |
| Stainless steel capillary pipe | Outside diameter: 0.4 - 16.0mm, Thickness: 0.1 -2.0mm, Length: 18000mm |
| Stainless steel welded sanitary pipe | Outside diameter:8.0- 850mm, Thickness: 1.0 -6.0mm |
| Stainless steel seamless sanitary pipe | Outside diameter: 6.0- 219mm, Thickness: 1.0 -6.0mm |
| Stainless steel square pipe | Side Length: 4*4 - 300*300mm, Thickness: 0.25 - 8.0mm, Length: 18000mm |
| Stainless steel rectangular pipe | Side Length: 4*6 - 200*400mm, Thickness: 0.25 - 8.0mm, Length: 18000mm |
| Stainless steel coil pipe | Outside diameter: 0.4 - 16mm, Thickness: 0.1 - 2.11mm |
| Standard | American Standard: ASTM A312, ASME SA269, ASTM A269, ASME SA213, ASTM A213 ASTM A511 ASTM A789, ASTM A790, ASTM A376, ASME SA335, B161, SB163, SB338, SB667/668 Germany Standard: DIN2462.1-1981, DIN17456-85, DIN17458-85· European Standard: EN10216-5, EN10216-2 Japanese Standard: JIS G3463-2006, JISG3459-2012 Russian Standard: GOST 9941-81 |
