AISI SS 310S / 310H Pipe Fittings , Flanges & Fastener

Stainless steel 310, was made for high temperature applications and therefore, it carries exceptional high temperature characteristics i.e. excellent in welding and good ductility. Alloy 310 also possess good resistance to oxidation under temperature as high as 1150°C, given the condition that there are no reducing sulfur gases. Stainless Steel 310 is also used for unsteady service at temperatures up to 1040°C.
On the other hand, alloy 310S is applied in environments that include moist corrodents within a temperature scale which is generally not taken in “high temperature” service. Also, due to lower concentration of carbon content in stainless steel 310S, its high temperature strength is not as high as found in SS 310.
Alloy 310H contains high carbon content, it was designed to have increased creep resistance. Most of the times the grain size and carbon content of the plate can be used with both SS 310S and SS 310H alloys.
Uses of SS 310 and SS 310S
• Cryogenic components
• To process food
• Furnaces like burners, doors, fans, piping and recuperators
• In steel plants
• In cement plants

Standards

Summary	Standards
Standard Specification for Wrought Austenitic Stainless Steel Piping Fittings	ASTM A 403
Standard Specification for Forged or Rolled Alloy and Stainless Steel Pipe Flanges, Forged Fittings, and Valves and Parts for High-Temperature Service	ASTM A 182

Mechanical Properties – Pipe Fittings

Tensile Strength : Unit – ksi (MPa) , Minimum
Yeild Strength : 0.2 % Offset , Unit – ksi (MPa) , Minimum
Elongation : in 2?, Unit : % , MinimumValues as per ASTM B 403

Condition & Grade	Tensile Strength	Yeild Strength	Elognation Longitudinal	Elognation Transverse
Annealed Tp 310S	75 (515)	30 (205)	28	20

Mechanical Properties – Flanges

Tensile Strength : Unit – ksi (MPa) , Minimum
Yeild Strength : 0.2 % Offset , Unit – ksi (MPa) , Minimum
Elongation : in 2?, Unit : % , Minimum
Reduction of Area : Unit : % , MinimumValues as per ASTM B 182