Stainless Steel 304/304L/304H Pipes & Tubes

Om Export India Pvt Ltd. is the leading manufacturer of SS 304/304L/304H Pipes and Tubes.

We supply and export them to the clients available around the globe. However we are also considered among the well-known stockists and importers of wide range of pipes and tubes. Which are available in various specifications as per the expectations of the clients. That includes specifications like surface finish, end finish, dimensions, shapes, sizes, length and toughness.

If available, are used interchangeably in industrial applications. Whose best way is that the industries distribute fluids between applications is with the help of the tubular part of the pipes. This is the best way to deliver all the gases and liquids that are available. They are hollow sections that are used in applications with a round cross-section and easily transport the products. It’s dimensions and diameter of the pipe must be considered depending on the application in which it is used.

Stainless steel 304, SS ASTM A312 TP304L seamless, ASTM A213 stainless steel 304H suppliers, SS 304 welded, ASTM A358 stainless steel 304L EFW exporter, SS 304H, stainless steel pipes manufacturer in India.

Apart from this, they are the pressure equipment that is used in industrial applications. It’s available in many shapes and sizes. Some of the shapes in which these are available are round, square, rectangular, that is with the hollow sections. Also the basic difference between them comes in the wall thickness, material, end connections and other factors.

UNS S30400 Seamless Distributor, DIN 1.4301 ERW, Stainless Steel UNS S30403 / S30409 Welded, SS DIN 1.4307 ERW Dealer, ASTM A213 SS TP304, 304L Stainless Steel Stockist, ASME SA312 SS 304H, Stainless Steel Tubes Suppliers in India.

SS 304 steel alloy is used in their development. However, the alloy is made of chromium and nickel content, which gives them different properties. In addition to this, the SS 304L is of low carbon content than the 304 alloy steel. This is how it has good intergranular corrosion resistance ability. Same way, the SS 304H is the high temperature application used alloy that it is with the high temperature strength and the ability to work in the elevated temperatures.

The alloy is the reason that the SS 304/304L/304H tubes and pipes are having different properties. Some of the properties that they are having are corrosion resistance, great ductility, durability, stability in the elevated temperatures, and great toughness.

SS 304 S30400 1.4301 Z7CN18‐09 X5CrNi18-10 SUS 304 304S31 08Х18Н10
SS 304L S30403 1.4306/1.4307 Z3CN18‐10 X2CrNi18-9 / X2CrNi19-11 SUS 304L 304S11 03Х18Н11
SS 304H S30409 1.4301 - - - - -

Specification of Stainless Steel 304/304L/304H Seamless Welded Pipes And Tubes

Stainless Steel Pipe Specification : ASTM A312, A358 / ASME SA312, SA358
SS Tube Specification : ASTM A213, A269, A249, A511, A554 / ASME SA213, SA269, SA249, SA511, SA554
Pipe Size : 1/8” NB to 24” NB, 1/4” OD to 24” OD sizes.
Tube Size : 1/2″ OD to 8″ OD.
Thickness Range : 0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Type : Seamless / ERW / Welded / Fabricated Pipes
Form : Round, Square, Rectangular, Oval, Hydraulic Etc
Length : Single Random, Double Random & Required Length
End : Plain End, Beveled End, Treaded
End Protection : Plastic Caps
Outside Finish : 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements
Delivery Condition : Annealed and Pickled, Polished, Bright Annealed, Cold Drawn
Inspection, Test Reports : Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports, Destructive Test Report, Non Destructive Test Reports
Packing : Packed in Wooden Boxes, Plastic Bags, Steel Strips Bundled, or as per Customers Requests
Specials : Sizes and Specifications other than above can be manufactured on request


Grade C Mn Si P S Cr Ni N
304 0.07max 2.0max 0.75max 0.045max 0.03max min: 18.0 max: 20.0 min: 8.0 max: 10.5
304L 0.03max 2.0max 0.75max 0.045max 0.03max min: 18.0 max: 20.0 min: 8.0 max: 12.0 0.10 max
304H min: 18.0 min: 8.0 min: 0.04 0.75 2 0.045 0.03 0.1
max:20.0 max: 10.5 max:0.10 max max max max max


Grade Tensile Strength ksi (min) Yield Strength 0.2% ksi (min) Elongation % Hardness (Brinell) MAX Hardness (Rockwell B) MAX
304 75 30 40 201 92
304L 70 25 40 201 92
304H 75 30 40 201 92


SS 304/304L
Density Thermal Conductivity Electrical Modulus of Coefficient of Specific Heat Melting
lbm/in3 (BTU/h ft. °F) Resistivity Elasticity Thermal Expansion (BTU/lb/ Range
(in x 10-6) (psi x 106 (in/in)/ °F) (°F)
°F x 10-6
at 68°F: 0.285 9.4 at 212°F 28.3 at 68°F 28 9.4 at 32 – 212°F 0.1200 at 68°F to 212°F 2500 to 2590
12.4 at 932 °F 39.4 at 752°F 10.2 at 32 – 1000°F
49.6 at 1652 °F 10.4 at 32 – 1500°F
SS 304H
Denstiy Coefficient of Thermal Conductivity BTU/hr-ft-°F Specific Heat BTU/lbm -°F Modules of Elasticity (annealed)2-psi
lbm/in3 Thermal Expansion (min/in)-°F
at 68 °F at 68 – 212°F at 68 – 1600°F at 212°F at 932°F at 32 – 212°F in tension (E)
0.285 9.2 11 9.4 12.4 0.12 29 x 106