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 shoulder bolts
Designed for high temperature applications, 310 stainless steel shoulder bolts provide high temperature oxidation resistance to 2000°F under mild cyclic conditions. An economic alternative to nickel alloys like alloy 330 or Inconel, 310 bolts provide slightly less strength and temperature resistance – but at a significantly lower price point. Alloy 310 can be used in moderately caburizing, moderately oxidizing, nitriding, cementing and thermal cycling applications when not used at the maximum service temperature. 310SS shoulder bolts also have good resistance to sulfidation and other forms of hot corrosion. Although primarily known for its high temperature properties, 310 stainless steel also provides excellent performance at cryogenic temperatures, with toughness down to -450˚F. Though 310 shoulder bolts are ideal for high temperature use, they 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 shoulder bolts for their high temperature and oxidation resistance in minor cyclic conditions.
- 310SS bolts are commonly used in the petrochemical industry for their ability to provide resistance to moderately carburizing atmospheres.
- The high temperature properties of 310 shoulder bolts make them ideal for ore processing, steel plants, power generation, and sintering.
- Cryogenic structures often use 310 stainless steel bolts 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 shoulder bolts, also called stripper bolts are a unique fastener with three main parts: head, shoulder, and thread. The head has the largest diameter and is where the torque is applied, typically with a socket driver. The shoulder is smooth and unthreaded, and has a set diameter and length. The shoulder’s role is to act as a shaft or dowel for rotating parts, axles for rolling parts, guides for sliding elements, and pivot points. The final part of a 310SS shoulder bolt is the threaded shaft. The threaded portion of a shoulder bolt has a major diameter slightly smaller than the shoulder diameter.