Overview
Grade 310S - austenitic chromium-nickel stainless steel, with good oxidation resistance and corrosion resistance, because of the higher percentage of chromium and nickel, makes it have much better creep strength and can continue to operate at high temperatures.
ASTM A213 TP310S stainless steel tube has great high temperature resistance. When the temperature exceeds 800 ℃ , it begins to soften, and the allowable stress begins to continue to decrease, and the maximum service temperature is 1200°C. Due to the high content of nickel (Ni) and chromium (Cr), it has good oxidation resistance, corrosion resistance, acid and alkali resistance, and high temperature resistance. After the content, the strength is improved due to its solid solution strengthening effect. The chemical composition of austenitic stainless steel is based on chromium and nickel with the addition of elements such as molybdenum, tungsten, niobium, and titanium. Because of its face-centered cubic structure, Therefore, it has high strength and creep strength at high temperature.
Specification
ASTM A213/A213M-21a Standard Specification for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes.
| Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
| BS | En | No | Name | ||||
| 310 | S31000 | 310S24 | - | 1.4840 | X15CrNi25-20 | - | SUS 310 |
| 310S | S31008 | 310S16 | - | 1.4845 | X8CrNi25-21 | 2361 | SUS 310S |
| 310S Stainless Steel Pipe & Tubes Specification | ASTM A269, ASTM A213, ASTM A312, ASME SA269, ASME SA213, ASME SA312 |
| 310S Stainless Steel Pipe & Tubes Grades | 202, 304, 304L, 304H, 304LN, 309S, 310S, 316, 316L, 316H, 316Ti, 316LN, 317L, 321, 321H, 347, 347H, 904L, SMO 254, ALLOY 254, 6MO, 6MOLY, UNS S31254 ETC. |
| 310S Stainless Steel Pipe & Tubes Type | Seamless / Welded / ERW / EFW / Cold Draw / Hot Finish / Cold Finish |
| 310S Stainless Steel Pipe & Tubes Outer Diameter Size | Seamless - 1/2"NB TO 18"NB Welded / ERW- 1"NB TO 16"NB EFW - 8"NB TO 110"NB |
| 310S Stainless Steel Pipe & Tubes Wall Thickness | Schedule 10 to Schedule 160 (3 mm to 100 mm Thickness) |
| 310S Stainless Steel Pipe & Tubes Length | 01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size. |
| 310S Stainless Steel Pipe & Tubes Ends | Plain Ends / Beveled Ends |
Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| 310 | min. max. | - 0.25 | - 2.00 | - 1.50 | - 0.045 | - 0.030 | 24.0 26.0 | - | 19.0 22.0 |
| 310S | min. max. | - 0.08 | - 2.00 | - 1.50 | - 0.045 | - 0.030 | 24.0 26.0 | - | 19.0 22.0 |
Mechanical Properties
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 310 | 515 | 205 | 40 | 95 | 217 |
| 310S | 515 | 205 | 40 | 95 | 217 |
Physical Properties
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion(μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100°C (J/kg.K) | Electrical Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| 310 / 310S | 7750 | 200 | 15.9 | 16.2 | 17.0 | 14.2 | 18.7 | 500 | 720 |
Applications
1. Oven linings
2. Boiler baffles
3. Fire box sheets
4. Furnace components
5. Other high temperature containers.
