Stainless Steel 304H Flanges


Arrow Piping Solutions is a renowned manufacturer, supplier, and exporter of Stainless Steel 304H Flanges in India. We offer a comprehensive range of SS 304H Flanges including Socket Weld Flanges, Plate Flanges, Spectacle Blind Flanges, Lap Joint Flanges, SORF Flanges, and Threaded Flanges, all conforming to ASTM A182 standards.


Stainless Steel 304H is a high carbon version of 304 Stainless Steel, offering greater strength at elevated temperatures. This alloy, with carbon content ranging from 0.04% to 0.10%, is ideal for use in high-temperature applications and provides resistance to corrosion and sensitization.


Arrow Piping Solutions produces SS 304H Flanges in a variety of sizes, thicknesses, and specifications to meet the needs of multiple industries. Our products are crafted as per international standards such as ASME, ASTM, ANSI, DIN, EN, BS, and JIS. These flanges are widely used in sectors including petrochemicals, marine engineering, pharmaceuticals, power plants, and food processing.

SS 304 Flanges

Specifications of Stainless Steel 304H Flanges


  • Specification: ASTM A182 / ASME SA182
  • Dimension Standard: ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, JIS
  • Size: 1/2" (15 NB) to 48" (1200NB)
  • Class / Pressure: 150#, 300#, 600#, 900#, 1500#, 2500#, PN6 – PN64
  • Flange Face Type: Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Equivalent Grades

STANDARDWERKSTOFF NR.UNS
SS 304H1.4301S30409

Chemical Composition

GradeCMnSiPSCrMoNiN
SS 304H0.10 max2.0 max0.75 max0.045 max0.030 max18.00 - 20.00-8.00 - 10.50-

Mechanical Properties

DensityMelting PointTensile StrengthYield Strength (0.2% Offset)Elongation
8.0 g/cm³1400 °C (2550 °F)75000 psi / 515 MPa30000 psi / 205 MPa40%

Standard Sizes and Dimensions

StandardClassDiameterBolt Circle DiameterNo. of BoltsBolt SizeBolt Hole Dia
ANSI 150150896041316
ANSI 300300956741316
ANSI 600600956741316
ANSI 9009001218341922
PN101095654M1214
PN161695654M1214

Application Industries

Chemical Industry

  • Petrochemical Industry
  • Marine & Power Transmission Industry
  • Power Plants

Industrial Applications

  • Energy Industries
  • Furniture
  • Pharmaceutical Processing

Other Uses

  • Modern Architecture
  • Home Appliances
  • Water Waste Projects

More Industries

  • Synthetic Fiber
  • Heat Exchanger
  • Fluid Piping
  • Dairy and Food Processing