Stainless Steel 304/304L/304H Flanges

Stainless Steel 304/304L/304H Flanges

Today Champak Steel & Engg. Co has become a well-known industry that is ruling the market by manufacturing, supplying and exporting the extensive ranges of industrial products. We are today fully busy in making and providing the commendable quality of SS 304/304L/304H Flanges to our clients. It is crafted in different dimensions, face types, class/pressure, dimensions, sizes, and standards. We too provide the same to our clients at cut-made standards/specifications based upon the exact demands of our valuable clients. All our product ranges are designed by using superior quality of alloy and as per the set production guidelines.

SS 304 is the 18/8 austenitic SS and is a non-magnetic alloy in the annealed conditions. It becomes magnetic when cold worked. It is mostly used for many purposes. T304 is easily welded and is preferred for several deep drawn, formed parts because of its greater ductility. SS 304L is having high resistance to oxidation to the temperature range of 899 deg C. The maximum temperature for the intermittent presentation is 816 deg C.

SS 304L is the low carbon version of 304 and can be used at the as-welded condition, even at the tough corrosive conditions. 304L is having very good welding properties and is welded by all standard techniques. In order to relieve stress at the time of severe forming/spinning, welding might be followed through annealing.

Stainless Steel 304 Flanges, SS ASTM A182 F304L Long Weld Neck Flanges, ASTM A182 Stainless Steel 304H Flanges Supplier, SS 304 Ring Type Joint - RTJ Flanges, SS 304L Slip on Flanges, Stainless Steel 304H Weld Neck Flanges, ASTM A182 Stainless Steel 304L Blind Flanges Exporter, SS 304H Flanges Manufacturer in India.

UNS S30400 Socket Weld Trader, DIN 1.4301 Pipe Flanges, Stainless Steel UNS S30403 / S30409 Plate Flanges, SS DIN 1.4307 Spectacle Blind Flanges Dealer, ASTM A182 SS F304 SORF Flanges, 304L Stainless Steel Threaded Flanges Stockists, ASME SA182 SS 304H Flanges Supplier in India.

SS 304H is the alloy containing carbon in greater proportion. This steel is right for the applications wherein the greater temperature is available. This ally is having very good yielding and tensile strength.

There are many good characteristics found in SS 304/304L/304H Flanges. Some of those are good welding/forming attributes, oxidation & corrosion resistance due to chromium addition, deep drawing quality, good toughness, ease of cleaning, fabrication ease, very good strength, and fabric ability.

The application where it is found used is railways, petrochemical industry, heat exchangers, pharmaceuticals, specialty chemicals, chemical industry, condensers, pulp & paper industry, fertilizers, constructions, buildings, etc.

SS 304/304L/304H Flanges is supplied along with the documents like heat treatment chart, QAP, MTC, third party test report, radiography test report, etc. This ensures that only the best product is delivered from our side.

304/304L/304H Stainless Steel Flanges Equivalent Grades

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 - - - - -

Stainless Steel 304/304L/304H Flanges Other Types

SS 304 Slip On Flanges

SS 304/304L/304H Slip On Flanges

Stainless Steel 304 SORF Flanges, UNS S30400 / S30403 / S30409 Slip On Flanges, DIN 1.4301 SORF Flanges, ASME SA 182 SS F304H Slip-on Raised Face Flanges

SS 304 Weld Neck Flanges

SS 304/304L/304H Weld Neck Flanges

ASME SA182 SS 304L /304H WNRF Flanges, ASTM A182 Stainless Steel 304 Weld Neck Flanges, DIN 1.4301 Weld Neck Flanges, UNS S30409 Weld Neck Raised Face Flanges

Stainless Steel 304L Blind Flanges

SS 304/304L/304H Blind Flanges

Stainless Steel ASTM A182 F304 Blind Flanges, UNS S30400 / DIN 1.4301 Blind Flanges, ASME SA182 SS 304L BLRF Flanges, SS 304H Blind Raised Face Flanges Supplier

Stainless Steel 304L Threaded Flanges

SS 304/304L/304H Threaded Flanges

DIN 1.4301 Threaded Flanges, UNS S30400 Screwed Flanges, ASME SA 182 Stainless Steel 304L Threaded Flanges, ASTM A182 304H SS Threaded Flanges

Stainless Steel 304 Socket Weld Flanges

SS 304/304L/304H Socket Weld Flanges

ASTM A182 F304H Stainless Steel Socket Weld Flanges, SS UNS S30400/ S30403/ S30409 Socket Weld Flanges, SS DIN 1.4301 / 1.4306 Socket Weld Flanges

Stainless Steel 304H Lap Joint Flanges

SS 304/304L/304H Lap Joint Flanges

UNS S30400 Lap Joint Flanges, Stainless Steel 304 Lap Joint Flanges, ASTM A182 F304L Stainless Steel Lap Joint Flanges, ASME SA 182 SS 304H Lap Joint Flanges

Stainless Steel 304H Ring Type Joint Flange

SS 304/304L/304H Ring Type Joint Flange

UNS S30400 Ring Type Joint Flange, ANSI B16.5 Stainless Steel 304 RTJ Flanges, ASTM A182 F304L Stainless Steel Ring Type Joint Flanges, ASME SA 182 SS 304H Ring Type Joint Flanges

Stainless Steel 304H Orifice Flanges

SS 304/304L/304H Orifice Flanges

UNS S30400 Orifice Flanges, B16.36 Stainless Steel 304 Orifice Flanges, ASTM A182 F304L Stainless Steel Orifice Flanges, ASME SA 182 SS 304H Orifice Flanges

Stainless Steel 304H Long Weld Neck Flanges

SS 304/304L/304H Long Weld Neck Flanges

UNS S30409 Long Weld Neck Flanges, Stainless Steel 1.4307 Long Weld Neck Flanges, ASTM A182 F304L Stainless Steel Long Weld Neck Flanges, ASME SA 182 SS 304H Long Weld Neck Flanges

Stainless Steel 304H Spectacle Blind Flanges

SS 304/304L/304H Spectacle Blind Flanges

UNS S30403 Spectacle Blind Flanges, ANSI / ASME B16.5 Stainless Steel 304 Spectacle Blind Flanges, ASTM A182 F304L Spectacle Blind Flanges, SA 182 SS 304H Spectacle Blind Flanges

Stainless Steel 304H Forged Flanges

SS 304/304L/304H Forged Flanges

UNS S30409 Forged Flanges, B16.5 Stainless Steel 304 Forged Flanges, ASTM A182 F304L Stainless Steel Forged Flanges, ASME SA 182 SS 304H Forged Flanges

Stainless Steel 304H Plate Flanges

SS 304/304L/304H Plate Flanges

UNS S30400 Plate Flanges, ANSI B16.5 Stainless Steel 304 Plate Flanges, ASTM A182 F304L Stainless Steel Plate Flanges, ASME SA 182 SS 304H Plate Flanges

Specification of Stainless Steel 304/304L/304H Flanges

Stainless Steel Flanges Specification : ASTM A182 / ASME SA182
Dimension Standard : ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Standard : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.
Size : 1/2" (15 NB) to 48" (1200NB)
Class / Pressure : 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flange Face Type : Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
DIN Flanges : DIN 2527, 2566, 2573, 2576, 2641,2642, 2655, 2656, 2627, 2628, 2629, 2631, 2632, 2633, 2634, 2635, 2636, 2637,2638, 2673.
JIS Flanges : JIS B2220 5K, JIS B2220 10K, JIS B2220 16K, JIS B2220 20K
BS Flanges : BS4504 PN 6, BS 4504 PN 10, BS4504 PN 16, BS4504 PN 25, BS4504 PN 40, BS 4504 PN 64, BS 4504 PN 100, BS 4504 PN 160, BS 4504 PN 250, BS 10, BS Table D, BS Table E, BS Table F, BS Table H.

Chemical Composition of Stainless Steel 304/304L/304H Flanges

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 Of Stainless Steel 304/304L/304H Flanges

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 of 304/304L/304H Stainless Steel Flanges

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

SS 304/304L/304H Flanges Application Industries

Our Stainless Steel 304/304L/304H Flanges are used in a wide range of applications and various industries. Below are a few of them:

  • Petrochemical Industry

  • Oil and Gas Industry

  • Chemical Industry

  • Power Plant Industry

  • Energy Industry

  • Pharmaceuticals Industry

  • Pulp & Paper Indusry

  • Food Processing Industry

  • Aerospace Industry

  • Refining Industry

Application Industries

Latest Price List of SS 304/304L/304H Flanges

Champak Steel and Engg. Co. is one of the leading manufacturer and supplier of 304 Stainless Steel ANSI B16.5 Flange, SS 304L ASME B16.5 Class 150 Flanges, 304H SS 300# Flanges, 304/304L/304H Stainless Steel 1500# Flanges, ASTM A182 F304 2500 Lbs Flanges, ASME SA 182 F304L BS10 Table E Flanges, DIN Flanges, JIS Flanges at the best price in India.


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