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Stainless Steel 304/304L/304H Seamless Tubes

Stainless Steel 304/304L/304H Seamless Welded Tubes And Tubes | SS Seamless Tubes | SS Welded Tubes And Tube. Stainless Steel 304/304L/304H Tubes & Tube Manufacturer in Mumbai, India & Stainless Steel 304/304L/304H Tubes & Tube Exporter in Mumbai, India. Stainless Steel 304/304L/304H - UNS S30400 / S30403/ S30409 Common Trade Names (304 Stainless, 304L Stainless, 304H Stainless .)

As an acclaimed endeavor of the business, KOBSINDIA are included in offering a limitless cluster of Stainless Steel 304/304L/304H Pipes and Tubes as a maker, exporter, stockiest and supplier to our local and worldwide customers. Our UNS S30400/S30403/S30409 Pipes and Tubes are known for their diverse uses in fitting applications, for example, in a broad cluster of utilization for the most part for the reason that of their quality, unwavering quality and non-destructive nature.

These 304/304L/304H Stainless Steel Pipes and Tubes are probably the most consistently indicated and have come to speak to the encapsulation of the fundamental stainless item. As for national and worldwide nature of raw materials, KOBSINDIA likewise offer these SS 304/304L/304H Pipes and Tubes in tweaked sizes and thicknesses according to particular requests by our regarded customers at business sector driving costs.

304/304L/304H stainless steel is a T 300 Series Stainless Steel austenitic. It is defined as a Chromium-Nickel austenitic alloy. KOBSINDIA is a leading supplier and exporter of Stainless Steel 304/304L/304H Pipe & Tube. We provide Stainless Steel 304/304L/304H Pipe & Tube as per the requirements of our customers and deliver quality products on time.

KOBSINDIA exports a wide range of Stainless Steel 304/304L/304H Pipes & Tubes (ASTM A/ASME SA213/A249/A269/A312/A358), Stainless Steel 304/304L/304H Pipes & Tubes Exporter in Mumbai, India, Stainless Steel 304/304L/304H Pipes Exporter in Mumbai India, Stainless Steel 304/304L/304H Tubes Exporter in Mumbai India, 304/304L/304H Stainless Steel Seamless Pipes & Tubes, Stainless Steel UNS S30400 / S30403/ S30409 Pipes & Tubes, Stainless Steel 304/304L/304H Piping & Tubing, Stainless Steel DIN 1.4449 / 1.4438 Pipes & Tubes, 304/304L/304H Stainless Steel Seamless Tubes & Pipes, Stainless Steel UNS S30400 / S30403/ S30409 Welded Pipes & Tubes, 304/304L/304H Stainless Steel ERW Pipes & Tubes, Stainless Steel DIN 1.4449 / 1.4438 Seamless & Welded Pipes & Tubes Stockists, 200 Alloy Pipes & Tubes Exporters.

These evaluations of austenitic 304/304L/304H Pipes & Tubes are the most adaptable and broadly utilized stainless steels. They display fantastic corrosion imperviousness to an extensive variety of destructive situations. Sort 304 and 304L evaluations of Stainless Steel Pipes & Tubes show great machinability and have superb weld-capacity attributes with or without the expansion of filler metals.

We can help supply all of the Stainless Steel ASTM 304H Seamless Pipe for use in the oil or natural gas industries. Seamless Tubes / Welded Tubes of premium quality is supplied by KOBSINDIA, per ASTM A 213, ASTM A 269 and ASTM A 511. Not only we stock standard sizes and grades of Seamless tubes in Stainless Steel SS304 & SS316, but we also do maintain huge inventories of Alloy Steel based Tubes in 304H, 309/S, 310/S, 317/L, 321H, 347H, Alloy 20, Duplex 2205, Duplex 2507, Alloy 200/201, C276, Alloy 400, Alloy 600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and others. Stainless Steel ASTM 304H Seamless Pipe, the pipe shall be suitable for bending, flanging, and similar forming operations, and for fusion welding.


Chemical Element % Present
Carbon (C) 0.0 - 0.08
Chromium (Cr) 16.00 - 18.00
Molybdenum (Mo) 2.00 - 3.00
Silicon (Si) 0.0 - 0.75
Phosphorous (P) 0.0 - 0.05
Sulphur (S) 0.0 - 0.03
Nickel (Ni) 10.00 - 14.00
Titanium (Ti) 0.0 - 0.70
Iron (Fe) Balance

Chemical Composition

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
max: 10.5
min: 0.04

Mechanical Properties

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

Physical Properties

SS 304/304L
Thermal Conductivity
(BTU/h ft. °F)
(in x 10-6)
Modulus of
(psi x 106
Coefficient of
Thermal Expansion
°F x 10-6
Specific Heat
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
Coefficient of
Thermal Expansion (min/in)-°F
Thermal Conductivity BTU/hr-ft-°F Specific Heat BTU/lbm -°F Modules of Elasticity (annealed)2-psi
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 11.0 9.4 12.4 0.12 29 x 106

KOBSINDIA exports Stainless Steel 304/304L/304H Pipes & Tubes to countries like UAE, Bahrain, Italy, Indonesia, Malaysia, United States, Mexico, Chine, Brazil, Peru, Nigeria, Kuwait, Jordan, Dubai, Thailand (Bangkok), Venezuela, Iran, Germany, UK, Canada, Russia, Turkey, Australia, New Zealand, Sri Lanka, Vietnam, South Africa, Kazakhstan & Saudi Arabia.

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