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ASTM A312 SS TP 310S Seamless Stainless Steel Pipes Supplier & Exporter in India

ASTM A312 TP310S Seamless Pipes are low carbon high temperature stainless steel pipes offering excellent oxidation resistance and improved weldability for extreme heat applications.

Product Overview – ASTM A312 SS TP310S Seamless Pipes

ASTM A312 SS TP310S is a low carbon austenitic stainless steel grade containing high chromium and nickel content. The reduced carbon level (max 0.08%) improves weldability and minimizes carbide precipitation during welding, making it suitable for high temperature structural and pressure applications.

SS 310S seamless pipes are widely used in furnaces, heat exchangers, petrochemical plants, and thermal processing equipment where resistance to oxidation and scaling is critical.

Standard, Grade & International Equivalents- ASTM A312 SS TP310S Seamless Pipes

Standard ASTM A312 / ASME SA312
Grade TP310S
UNS S31008
EN 1.4845

ASTM A312 SS TP310S Seamless Pipe Specifications

Manufacturing Type : Seamless
Size Range : 1/8″ NB to 24″ NB
Schedules : 5S, 10S, 40S, 80S, 160, XS, XXS
Length : 6m, 12m, Custom Length
End Type : Plain End (PE), Beveled End (BE)
Testing : Hydrostatic Test, PMI, NDT
Certification : EN 10204 3.1 / 3.2 MTC
Dimensional compliance: ASME B36.19M.

All specifications are in accordance of ASTM A312 / ASME SA312 standards. Mechanical and chemical values are as per standard limits. Mill Test Certificates (MTC) available upon request.

Chemical Composition of ASTM A312 SS TP310S Seamless Pipes

(As per ASTM specification)
ElementMin %Max %
Carbon (C)—0.08
Manganese (Mn)—2.00
Silicon (Si)—1.50
Phosphorus (P)—0.045
Sulfur (S)—0.030
Chromium (Cr)24.026.0
Nickel (Ni)19.022.0
IronBalance—

Mechanical Properties of ASTM A312 SS TP310S

Tensile Strength (Min)515 MPa
Yield Strength (Min)205 MPa
Elongation35%

High Temperature & Welding Performance of ASTM A312 SS TP310S Seamless Pipes

SS 310S seamless pipes offer oxidation resistance up to approximately 1100°C in intermittent service. The low carbon content reduces sensitization during welding, making it suitable for heavy welded structures exposed to high heat.

🔸 Excellent resistance to scaling
🔸 Improved weldability compared to TP310
🔸 High creep strength at elevated temperatures
🔸 Stable microstructure under thermal cycling

Applications of ASTM A312 SS TP310S Seamless Pipes

  • 🔸Industrial furnaces
  • 🔸Heat exchangers
  • 🔸Petrochemical processing plants
  • 🔸Oil & gas refineries
  • 🔸Boilers and superheaters
  • 🔸High temperature structural piping

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Advantages of SS 310S Seamless Stainless Steel Pipes

Excellent high temperature resistance Superior oxidation resistance Low carbon for improved weldability Strong resistance to scaling Suitable for extreme heat industrial environments

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Frequently Asked Questions

– ASTM A312 SS TP310S Seamless Pipes

What is ASTM A312 TP310S seamless pipe?
ASTM A312 TP310S is a low carbon austenitic stainless steel seamless pipe grade designed for high temperature and corrosive service. It contains 24–26% chromium and 19–22% nickel, offering excellent oxidation resistance and improved weldability.
What is the difference between TP310 and TP310S?
TP310S is the low carbon version of TP310. The reduced carbon content (maximum 0.08%) minimizes carbide precipitation during welding and improves weldability in high temperature applications.
What sizes are available in TP310S seamless pipes?
ASTM A312 TP310S seamless pipes are typically available from 1/8” NB up to 24” NB in various schedules including 5S, 10S, 40S, 80S, 160, XS and XXS, as per ASME B36.19M dimensions.
What is the maximum temperature resistance of SS 310S?
SS 310S provides oxidation resistance up to approximately 1100°C in intermittent service conditions, making it suitable for furnaces, heat exchangers, and thermal processing equipment.
What is the UNS number and EN equivalent of SS 310S?
The UNS designation for TP310S is S31008, and the commonly referenced EN equivalent is 1.4845.