Stainless Steel Seamless Pipes

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Stainless Steel Seamless Pipes Supplier & Stockist

One variety of steel pipe that is produced without welding or joints is stainless steel seamless pipes. These pipes are made by forcing a seamless tube from a solid stainless steel billet via a die. These pipes are stronger, more dependable, and less likely to leak than welded pipes because they don't have any welds or joints.

In applications that call for high levels of corrosion resistance, such those in the chemical, petrochemical, and oil and gas sectors, seamless stainless steel pipes are frequently employed. Due to their ability to tolerate extremely high temperatures without deteriorating or breaking down, they are also utilised in high-temperature applications.

Stainless Steel Seamless Pipe

Stainless Steel Seamless Pipes Specifications

Standard: ASTM, ASME, DIN, BS, EN, IS, AMS, JIS, IBR & Other International Standards.
Dimensions: ASTM A 312 ASME SA 312 / ASTM A 358 ASME SA 358
Size: 1/8NB TO 30NB IN
SS Pipes: 1/2" NB - 16" NB
ERW Pipes: 1/2" NB - 24" NB
EFW Pipes: 6" NB - 100" NB
Specialized in: Large Diameter Size
Schedule: SCH 5, SCH10, SCH 20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Type: Seamless / ERW / Welded / Fabricated / CDW
Form: Round Pipes, Square Pipes, Rectangular Pipes, etc.
Length : Single Random, Double Random & Required Length
End : Plain End, Beveled End, Treaded

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Stainless Steel Seamless Pipes Chemical Composition

Grade UNS # Content % by weight
Carbon Manganese Phosphorus Sulfur Silicon Chromium Nickel Molybdenum
TP304 S30400 0.08 2.00 0.045 0.030 1.00 18 – 20 8 – 11 x
TP304L S30403 0.035 2.00 0.045 0.030 1.00 18 – 20 8 – 13 x
TP316 S31600 0.08 2.00 0.045 0.030 1.00 16 – 18 10 – 14 2 – 3
TP316L S31603 0.035 2.00 0.045 0.030 1.00 16 – 18 10 – 14 2 – 3

Stainless Steel Seamless Pipes Physical Properties

Property Value
Density 7.9 to 8.05 g/cm3
Melting point 1370 to 1425°C
Thermal conductivity 15 W/mK
Electrical conductivity 3.5% IACS
Magnetic properties Austenitic grades (e.g. 304, 316) are generally non-magnetic, while ferritic and martensitic grades can be magnetic
Yield strength 170 to 550 MPa

ASTM A312 SS Seamless Pipes Mechanical Properties

Steel Grade N/mm 2 MIN.
Tensile Stress
N/mm 2 MIN.
Proof Stress
% MIN.
Elongation
HRB MAX.
Hardness
SUS304 520 205 40 90
SUS304L 480 175 40 90
SUS310S 520 205 40 90
SUS316L 480 175 40 90
SUS321 520 205 40 90

Application Industry

Oil & Gas

Oil & Gas

Marine

Marine

Power Plants

Power Plants

Refinery

Refinery

Petrochemical

Petrochemical

Offshore

Offshore