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 pan head screws

Designed for high temperature applications, 310 stainless steel pan head 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 screws provide slightly less strength and temperature resistance – but at a significantly lower price point.  Alloy 310 pan heads can be used in moderately caburizing, moderately oxidizing, nitriding, cementing and thermal cycling applications when not used at the maximum service temperature. 310SS pan head screws also have good resistance to sulfidation and other forms of hot corrosion.  Although primarily known for its high temperature properties, 310 pan heads 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.

Benefits

• 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.

Applications

• Thermal processing and high temperature furnaces rely on 310 pan head screws for their high temperature and oxidation resistance in minor cyclic conditions.
• 310SS pan 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 pan head screws for their strength at -450°F and low magnetic permeability.

Resources: Flange Dimensions, Flange Bolting Chart

Alloy 310 Screw Types: 12 Point Screws, Button Head Cap Screws, Flat Head Screws, Hex Head Cap Screws, Pan Head Screws, Set Screws, Socket Head Cap Screws, Tamper Resistant Security Screws, Torx Screws, Vented Screws

310 Stainless Steel Chemistry & Specifications

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

310SS Pan Head Screw Features and Benefits

Pan head screws are flat on top and rounded on the sides. 310 pan head screws are ideal for:
•  Small diameter fasteners – especially when the fastener size needed is too small for a wrench.
•  When phillips or slotted drivers are desired. For many high strength specialty alloys, only slotted drives are available.
•  Low torque applications because the drivers don’t offer as much force as a wrench.
•  Large diameter head provides more clamping area.

How Are They Different from Button Head Screws?
310SS pan head and button head screws have very similar profiles however, button head screws allow for a hex socket driver whereas pan head screws do not.