Stainless steel


304, 304L, 304H Tubes

India’s Largest Stainless Steel 304 Seamless Tubes, ASTM A213 SS 304L Tubing, Steel 304H Seamless Tubes, SS 304 Decorative Tubes, SS 304L Decorative Tubes, Stainless Steel 304H Welded Tubes Manufacturer & Suppliers in India

ASME SA 213 Stainless Steel UNS S30400 Sanitary Tubes, SS UNS S30403 Instrumentation Tubes, Steel 304H Cold Rolled Coiled Tubing, SS UNS S30409 Heat Exchanger Tubes, SS 304L Decorative Tubes, Stainless Steel 304H High Pressure Tubes Stockists & Exporters

We at Sunflex Metal Industries are manufacturing and supplying the top quality products like Stainless Steel 304, 304L, 304H Tubes across India and worldwide. We are experts in manufacturing Stainless Steel Tubes in a wide range of grades, sizes, and shapes by request of our customers.

These Stainless Steel 304 Tubes are having high demand because they are more versatile, exhibit excellent corrosion resistance, high strength, workability and are even used in high temperatures and pressures. Stainless Steel 304 Seamless Tubes are manufactured from carbon steel, stainless steel, and high nickel alloy, etc. These are used in industrial applications such as mining, oil refineries, chemical manufacturing, etc. We can supply Stainless Steel 304 Welded Tubes with various sizes and thicknesses.  

We offer Stainless Steel 304L Tubes which are used for both structural and pressure applications. Type Stainless Steel 304L Seamless Tubes are used for pressure applications such as moving liquids and gases in water treatment processing, chemical, petrochemical, and marine industries. Type Welded 304 Tube is used for structural applications such as handrails, kitchen, and hospital equipment.

We also can offer Stainless Steel 304H Tubes which are easily welded, fabricated and having good resistance to atmospheric corrosion, foods and beverages and many more. Type Stainless Steel 304 Seamless Tubes are used for oil and natural gas industries. Type Stainless Steel 304H Welded Tubes are having some special advantages compared to other grades. These are used in specialty chemicals, condensers and many more. Contact Sunflex Metals for best products at the great prices or to get detailed information about our products!

Stainless Steel 304 Electropolished Tubes, ASTM A249 SS 304L Polished Tubing, Steel Bright Annealed Seamless Tubes, SS Werkstoff Nr. 1.4301 / 1.4307 EFW Tubes, SS 304L ERW  Tubes, Stainless Steel DIN 1.4948 Square Tubes Stockholder & Dealers in India

Stainless Steel 304, 304L, 304H Tubes Specifications

Standard specifications for stainless steel 304, 304L, 304H Tubes. If any specification is not mentioned here, you can contact us. We also manufacture and export any custom specification as per clients requirement.

Specifications ASTM A/ASME SA213/A249/A269
Dimensions ASTM, ASME, and API
Size 1/8″NB TO 30″NB IN
Thickness 0.35mm to 6.35mm OD in thickness ranging from 0.1mm to 1.2mm.
Schedule SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Type Seamless / ERW / Welded / Fabricated / LSAW Tubes
Form Round, Square, Rectangular, Hydraulic Etc
Length Single Random, Double Random & Cut Length
End Plain End, Beveled End, Treaded

Types of SS 304, 304L, 304H Tubes

SS 304 Seamless Tube 304L Stainless Steel Seamless Tube
WERKSTOFF NR. 1.4948 Seamless Tube UNS S30400 Welded Tube
SS 304L ERW Tube Stainless Steel 304H EFW Tube
304 SS Round Tube SS UNS S30403 Round Tube
ASTM B213 TP 304H Stainless Steel Round Tubes GOST 08Х18Н10 Seamless Tubes
SS 304L Square Tube      304H Stainless Steel Square Tube
UNS S30400 Rectangular Tube WERKSTOFF NR. 1.4306/1.4307 Rectangular Tube
SS 304H Rectangular Tube 304 Stainless Steel Custom Tube
GOST 03Х18Н11 Custom Tubes ASTM B213 TP 304H Stainless Steel Custom Tubes
SS 304, 304L, 304H Polished Tube UNS S30400 Decorative Tube
ASTM A312 TP 304L Stainless Steel Decorative Tubes 304H SS Decorative Tube
SS 304/304L Thick Wall Tube UNS S30409 Thick Wall Tube
WERKSTOFF NR. 1.4301 Thin Wall Tube 304L SS Thin Wall Tube
304H Stainless Steel Thin Wall Tube 304 Stainless Steel Electropolished Tube
SS 304L Electropolished Tube UNS S30409 Electropolished Tube

Chemical Composition of SS 304, 304L, 304H Seamless Tubes

Grade C Mn Si P S Cr Mo Ni N
304 min. 18.0 8.0
max. 0.08 2.0 0.75 0.045 0.030 20.0 10.5 0.10
304L min. 18.0 8.00
max. 0.030 2.0 0.75 0.045 0.030 20.0 12.00 0.10
304H min. 0.04 18.0 8.0
max. 0.10 2.0 0.75 0.045 0.030 20.0 10.5

SS 304, 304L, 304H Welded Tubes Mechanical Properties

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
304 515 205 40 92 201
304L 485 170 40 92 201
304H 515 205 40 92 201

Physical Properties of Grade 304, 304L, 304H Stainless Steel Tubes

Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (m/m/0C) Thermal Conductivity (W/m.K) Specific Heat 0-1000C (J/kg.K) Electrical Resistivity (n.m)
0-1000C 0-3150C 0-5380C at 1000C at 5000C
304 8000 193 17.2 17.8 18.4 16.2 21.5 500 720
304L 8000 193 17.2 17.8 18.4 16.2 21.5 500 720
304H 8000 193 17.2 17.8 18.4 16.2 21.5 500 720

Stainless Steel 304, 304L, 304H Tubes Equivalent Grades

Grade UNS No Old British Euronorm Swedish SS Japanese JIS GOST
BS En No Name
304 S30400 304S31 58E 1.4301 X5CrNi18-10 2332 SUS 304 08Х18Н10
304L S30403 304S31 58E 1.4306 / 1.4307 X5CrNi18-10 2332 SUS 304L 03Х18Н11
304H S30409 304S31 58E 1.4948 X5CrNi18-10 2332 SUS 304H

ASTM A213 304, 304L, 304H Steel Tubes Price List

Sunflex Metal Industries is one of the most competitive suppliers of Tubes from India. Our prices for 304, 304L, 304H Tubes are very competitive. Please click on the request a quote button or click here to request the updated price list and ready stock information along with your requirement. Sunflex Metal Industries maintains a stock of all standard items and can export them at the best price for 304, 304L, 304H Tubes.

Steel 304, 304H, 304L Seamless / Welded Tubes - Industries & Applications

Our pipes and tubes are used in a wide range of applications and various industries. Below are a few of them:

  • Gas Processing Industries
  • Petrochemical Industries
  • Power Generation Industries
  • Food Processing Industries
  • Chemical Industries
  • Oil & Gas Industries
  • Fertilizers Industries
  • Paper Industries

Stock Availability of Stainless Steel 304, 304L, 304H Tubes

We maintain huge inventories of all standard sizes and grades. Please send us your complete requirement and we will send you the availability with the best quote for 304, 304L, 304H Tubes.
Click to send your requirement.

Why Buy SS 304L, 304H, 304 Tubes from Sunflex Metal Industries

Sunflex Metal Industries is a leading stockist, distributor and supplier of 304, 304L, 304H Tubes from India. With more than three decades of experience, we understand the steel industry deeply. We have huge experience of supplying to all major industries across the world. Our team of dedicated experts with stringent quality policy ensures that we supply best-in-class products meeting and exceeding our client’s expectations. Below are a few quick points about why buying from Sunflex Metal Industries will give you an undue advantage:

  • Huge inventory of all standard sizes and grades.
  • Distributors of all reputed origins and manufacturers.
  • Strict quality control policies and highly experienced team.
  • Strong logistics & delivery channels.
  • Modern Infrastructure with huge storage capacity.
  • An ISO 9000:2015 Certified Company.

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Prominent Countries where we Export ASTM Stainless Steel 304, 304L, 304H Tubes

Exporting Tubes to Singapore, Malaysia, Hongkong, Thailand, Indonesia, Taiwan. Other countires includes  Afghanistan, Albania, Andorra, Austria, Bahrain, Bangladesh, Bhutan, Brunei, Belarus, Belgium, Bulgaria, Cambodia, China, Cyprus, Croatia, Czech Republic, Denmark, Estonia, Egypt, Finland, France, Germany, Greece, Georgia, Hungary, Iceland, Ireland, Italy,  Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Lebanon, Latvia, Latin America, Liechtenstein, Lithuania, Luxembourg, Malta, Moldova, Monaco, Maldives, Mongolia, Myanmar (Burma), Nepal, North Korea, Netherlands, Norway, Oman, Poland, Portugal, Pakistan, Palestine, Philippines, Qatar, Russia, Romania, Russia, San Marino, Serbia and Montenegro, Slovakia, Slovenia, Spain, Sweden, Switzerland, Saudi Arabia,  South Korea, South Africa, Sri Lanka, Syria,  Tanzania, Tajikistan, Thailand, Turkey, Turkmenistan, Ukraine, United Kingdom, United Arab Emirates (UAE), Uzbekistan, Vietnam, Yemen.

We are one of the top:

  • Tubes exporters to Singapore
  • Tubes exporters to Malaysia
  • Tubes exporters to Hongkong
  • Tubes exporters to Thailand
  • Tubes exporters to Indonesia
  • Tubes exporters to Taiwan