Good high temperature oxidation resistance to 2000°F
High temperature stability for moderate strength applications
- Good oxidation and carburization resistant to 2000°F
- Resistance to moderate sulfidation and nitriding
- Economic alternative to high temperature nickel alloys
- 310SS chemistry & specifications
- Features & benefits of 310SS torx head screws
Designed for high temperature applications, 310 stainless steel torx screws provide high temperature oxidation resistance to 2000°F under mild cyclic conditions. An economic alternative to nickel alloys like alloy 330 or Inconel, 310 torx screws provide slightly less strength and temperature resistance – but at a significantly lower price point. Alloy 310 screws can be used in moderately caburizing, moderately oxidizing, nitriding, cementing and thermal cycling applications when not used at the maximum service temperature. 310SS torx screws also have good resistance to sulfidation and other forms of hot corrosion. Although primarily known for its high temperature properties, 310 screws also provide excellent performance at cryogenic temperatures, with toughness down to -450˚F. Though 310 is ideal for high temperature use, it should not be exposed to the severe thermal shock of repeated liquid quenching or where aqueous corrosive contaminants are present.
- High temperature resistance.
- Excellent resistance to oxidation under mildly cyclic conditions.
- Good resistance to sulfidation and atmospheres where sulfur dioxide gas is encountered at elevated temperatures.
- Good resistance to thermal fatigue.
- Excellent toughness to cryogenic temperatures of -450°F.
- Low magnetic permeability.
- Good ductility and weldability.
- Thermal processing and high temperature furnaces rely on 310 torx screws for their high temperature and oxidation resistance in minor cyclic conditions.
- 310SS torx heads are commonly used in the petrochemical industry for their ability to provide resistance to moderately carburizing atmospheres.
- The high temperature properties of 310 screws make them ideal for ore processing, steel plants, power generation, and sintering.
- Cryogenic structures often use 310SS torx screws for their strength at -450°F and low magnetic permeability.
|310 Stainless Steel Properties|
|Tensile Strength (ksi)||70|
|Yield Strength (ksi)||30|
|Rockwell B Hardness||95|
|Electrical Resistivity (Microhm-in at 68°C)||30.7|
|Modulus of Elasticity (x 106 psi)||28.5|
|Thermal Conductivity at 212°F (BTU/hr/ft2/ft/°F)||8.0|
310SS Specifications: AMS 5521, AMS 5651, ASME SA 240, ASME SA 312, ASME SA 479, ASTM A 240, ASTM A 276, ASTM A 276 Condition A, ASTM A 276 Condition S, ASTM A 312, ASTM A 479, EN 10095, UNS S31008, UNS S31009, Werkstoff 1.4845
310 Torx screws are characterized by a 6-point star-shaped pattern, also called a star drive, spined socket or hexalobular (ISO 10664). Where Phillips heads were designed to cause the driver to cam-out (prevent overtightening), Torx screws were designed resist cam-out. This feature allows 310SS torx screws to provide increased torque as well as better torque transfer between driver and fasteners. This feature also helps to reduce wear on driver bits.
310 Torx Screw Advantages
- Resistant to cam out (process by which a screwdriver slips out of the head)
- 310 stainless steel torx screws are more difficult to strip
- Increased tamper resistance as a star driver isn’t as common
- Driver insert is less susceptible to damage when over torqued than Allen head