Unimix Metal Cooperation, adhering to current market standards, specializes in manufacturing, supplying, and exporting high-quality Stainless Steel 309/309S/310H Fasteners, ideal for intermittent use at temperatures up to 1040°C.
Heat-resistant Stainless Steel 309/309S Threaded Screws are used in welding, annealing, and hardening processes across marine, reconditioning, and refurbishment industries. Our SS 310H Machine Screws cater to the needs of the oil and gas sector, automotive, shipbuilding, and power plants.
Stainless Steel 310S Hex Head Screws remain stable between 912°C and 1394°C, within the austenite (gamma iron) phase. SS 310H Socket Head Cap Screws (UNS S31009) have a restricted carbon content to avoid the lower end of the 310 range. Made from premium stainless steel, SS 310 Concrete Screws are widely utilized for binding two components together.
Our SS 310/310H Anchor Screws are extensively used in construction work to securely connect joints. Heat-treating enables additional modifications in Stainless Steel 309/309S Shoulder Screws, such as accelerating cooling rates through the austenite-to-ferrite transformation.
Grade | Stainless Steel 309/309S/310H | SS 310/310S/310H | UNS S31000/S31008/S31009 |
Specification | IS, BS, ASTM, ASME |
Standard | ASTM A193 ASME SA193 |
Length | 3mm to 200mm |
Size | 3/6″ to 2″, M3 – M56, Custom Sizes |
Form | Screw, Nuts, Bolts, Washers |
Application | Automobile Industry, Engineering, Oil & Gas, Heat exchanger and condenser, Refineries & Petrochemicals, Power plants, Desalination Plants, Shipbuilding |
Grade | UNS No | Old British | Euronorm | Swedish SS | Japanese JIS | ||
BS | En | No | Name | ||||
310 – 310S | S31000/S31008 | – | – | 1.4841/1.4845 | – | – | SUS 310 – 310S |
310H | S31009 | – | – | – | – | – | – |
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 – 310S | 515 | 205 | 40 | 95 | 217 |
310H | 515 | 205 | 40 | 95 | 217 |
Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (m/m/0C) | Thermal Conductivity (W/m.K) | Specific Heat 0-1000C (J/kg.K) | Electrical Resistivity (n.m) | |||
0-1000C | 0-3150C | 0-5380C | at 1000C | at 5000C | |||||
310 – 310S | 7750 | 200 | 15.9 | 16.2 | 17.0 | 14.2 | 18.7 | 500 | 720 |
310H | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
Stainless Steel 309/309S/310H Industrial Screws | Hex Head Screw, Socket Head Cap Screw, Socket Set Screws, Anchor Screw, Blind Rivet, Concrete screw, Threaded Screw, Steel Shoulder Screw, Panel Screw, Machine Screw |
Stainless Steel 309/309S/310H Industrial Washers | Plain Washer, Plain Big & Small Washers, Spring Lock Washers, Spring Washers Heavy Duty, Tooth Washers, Star Washers, Tab Washer With One & Two Tab |
Stainless Steel 309/309S/310H Industrial Nuts | Hexagon Nuts, Hexagon Coupling Nuts, Hexagon Thin Nuts, Square Nuts, Hexagon Castle Nuts, Self Locking Nut, Hexagon Domed Cap Nuts |
Stainless Steel 309/309S/310H Industrial Bolts | Stud Bolts, Hex Head Bolts, Socket Hexagon Head Screw Anchor Bolts, U-Bolts, J Bolts, Mushroom Head Square Neck Bolts, T- Head Bolts, Wing Screw Bolts, Eye Bolts, Eye Bolts, Foundation Bolts, Structural Bolts, Bolts, H Bolts |
310/310S/310H Steel Fasteners | Stainless Steel 309/309S Bolts | SS 310S/310H Mushroom Head Square Neck Bolts |
Steel S31000 Square Nut | Stainless Steel 310S Tab Washer | Steel 310H Pan Head Screw |
Stainless Steel 310 U Bolts | UNS S31008 Eye Bolts | Steel UNS S31009 Cap Screw |
310/310S SS Pan Head Screw | Steel 310H Foundation Bolts | Stainless Steel UNS S31000 Panel Screw |
Steel 310/310H Hexagon Thin Nuts | Stainless Steel 310S Hex Head Bolts | Stainless Steel 310H Foundation Bolts |
Stainless Steel 310S Stud Bolts | Steel 310/310S/310H Machine Screws | SS 310/310S/310H Structural Bolts |
Stainless Steel UNS S31008 Hexagon Nuts | Steel 310S/310H T- Head Bolts | 310/310S/310H Steel Spring Lock Washers |
Unimix Metal Corporate, under the leadership and mentoring of intellectual individuals, is currently one of the Manufacturer, Supplier, Stockiest, Importer and Exporter of Stainless Steel , Carbon Steel , Alloy Steel , High Nickel Alloys , Special Alloys , Aluminium Alloys , Copper Nickel , Titanium Alloys , Duplex & Super Duplex , Tantalum , Abrasion Resistant Steel, Hadfield Manganese Steel , Corten Steel , High Tensile , Quenched & Tempered Steel , Armour Steel , etc in Forms of Pipes , Tubes , Plates , Round Bars and Fittings.
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