UNS S32615 is a high silicon containing austenitic stainless steel. It was developed by Sandvik exclusively for use in concentrated sulphuric acid. Haohua AB is a wholly owned subsidiary of Sandvik and introduced SX to the industry in 1985. Haohua continue to market SX world wide through its licensees, agents and representatives.
Haohua has developed a complete standard for pipes, flanges and fittings made of SX. The standard is based on ASME B 31.3 and covers the size range from DN 25 (1”) up to DN 600 (24”). Flanges are available in ISO, PN 10 and ANSI B16.5 (150 lb) standards. Larger dimensions and other custom parts are manufactured according to individual customer needs.
Mechanical
Yield Strength (0.2% offset) minimum | ||
20°C | 220 N/mm² | |
50°C | 196 N/mm² | |
100°C | 175 N/mm² | |
150°C | 160 N/mm² | |
200°C | 148 N/mm² | |
Yield Strength (0.1% offset) minimum | ||
20°C | 250 N/mm² | |
Tensile Strength | 20°C | 550-800 N/mm² |
Elongation A5 | 20°C | 30% |
Hardness, Vickers | 160 nom | |
Physical Properties
Density | 7.8 g/cm³ | |
Thermal Conductivity | ||
20°C | 11 W/m °C | |
100°C | 13 W/m °C | |
200°C | 14 W/m °C | |
Specific Heat Capacity | ||
50-100°C | 500 J/kg °C | |
Thermal Expansion | ||
20-100°C | 15.0 x 10-6 per °C | |
20-200°C | 15.5 x 10-6 per °C | |
20-300°C | 16.0 x 10-6 per °C | |
Modulus of Elasticity | ||
20°C | 200,000 N/mm² | |
400°C | 170,000 N/mm² | |
Weldability
The welding properties are good and the welds produced are smooth and show a corrosion resistance comparable to that of the base metal.
ASTM A484 /ASME SA484 | Standard Specification for General Requirements for Stainless Steel Bars, Billets, and Forgings | ||||
Austenitic (Chromium-Nickel) (Chromium-Nickel-Manganese) | UNS S30215 | 302 | UNS S30452 | UNS S30600 | UNS S30615 |
308 | UNS S30815 | UNS S30880 | 309 | 309S | |
310 | 310S | 314 | 317 | ||
UNS S31725 | UNS S31726 | UNS S32615 | UNS S38100 | 309Cb | |
310H | 316H | 321H | 347H | 348H | |
310Cb | 316Cb | 316Ti | 321 | 347 | |
348 | 304H | 309H | 309H | UNS S33228 | |
UNS S31254 | UNS S32050 | UNS S31727 | UNS S32053 | UNS N08700 | |
UNS S34565 | UNS S35315 | UNS N08367 | |||
Austenitic-Ferritic (Duplex) | UNS S32100 | UNS S31260 | UNS S31803 | UNS S32101 | UNS S32205 |
Size | 5~500mm | ||||
Length | As per clients' requirements. | ||||
Surface | Bright or Black | ||||
Application | Foodstuff, gas, metallurgy, biology, electron, chemical, petroleum, boilers, nuclear, energy, construction field, ships building industry, war and electricity industry, boiler heat exchanger, machiner and hardware fields and medical equipment, fertilizer, etc. | ||||
