Introduction of 310-310S Stainless Steel Pipe

- Oct 18, 2017 -

310 is a highly alloyed austenitic stainless steel used for high-temperature applications, the high chromium and nickel contents give the steel excellent oxidation resistance as well as high strength at high temperatures. This grade is also very ductile, and has good weldability enabling its widespread usage in many applications.

310S is the low carbon version of SX 310 and is suggested for applications where sensitisation, and subsequent corrosion by high temperature gases or condensates during shutdown may pose a problem.


Chemical Composition

310

C

Mn

P

S

Si

Fe

Cr

Ni

0.25 max

2.0 max

0.045 max

0.030 max

1.75 max

Balance

24.0-26.0

19.0-22.0


310S

C

Mn

P

S

Si

Fe

Cr

Ni

0.08 max

2.0 max

0.045 max

0.030 max

1.5 max

Balance

24.0-26.0

19.0-22.0


Mechanical Properties at Room Temperature

Grade

Tensile Strength (MPa)

Yield Strength 0.2% Proof (MPA) min

Elongation (% in 50mm) min

Hardness (Brinell)

310

515 min

205 min

40

172 (Typical)

310S

515 min

205 min

40

156 (Typical)


Application 

Higher alloyed stainless steel pipe generally exhibit excellent elevated temperature strength along with resistance to creep deformation and environmental attack. As such, they are used widely in the heat treatment industry for furnace parts such as conveyor belts, rollers, burner parts, refractory supports, retorts and oven linings, fans, tube hangers, and baskets and trays to hold small parts. These grades are also used in the chemical process industry to contaion hot concentrated acids, ammonia, and sulfur dioxide. In the food processing industry, they are used in contact with hot acetic and citric acid.