Stainless Steel 304H Flanges
304H flange is an austenitic stainless heat-resistant steel and is widely used in the manufacture of equipment and parts that require good comprehensive properties (corrosion resistance and formability).
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Description
Gnee Steel (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of stainless steel 304h flanges in China. With abundant experience, we warmly welcome you to wholesale customized stainless steel 304h flanges from our factory. For price consultation, contact us.
304H (UNS S30409) is a high carbon austenitic stainless steel with high temperature strength improved by controlled carbon content (0.04-0.10%), suitable for pipe connections in high temperature environments. The chemical composition is similar to 304, but the carbon content is higher, and it has both high temperature resistance and high temperature mechanical properties.
GNEE is an exporter of SS JIS SUS 304H orifice flanges, which have no carbide precipitation and are usually used with orifice flow meters to measure the flow of liquid or gas through a pipeline.
Moreover, we also offer a wide range of Stainless Steel ASTM A182 304H Flanges such as SS 304H Slip On Flange, SS 304H Weld Neck Flange, SS 304H Socket Weld Flange, SS 304H Blind Flange, SS 304H Orifice Flange, SS 304H Spectacle Blind Flange, SS 304H Screw/Threaded Flange, SS 304H Reducing Flange, SS 304H Ring Type Joint Flange (RTJ), and many more.
Stainless Steel 304H Flanges
Specifications : ASTM A182 / A240 & ASME SA182 / SA240
Dimensions : 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)
Chemical composition of F304H grade stainless steel pipe flange
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 304H | 0.10 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | 18 – 20 | - | 8 – 10.5 | - |
ASTM A182 SS 304H Plate Flange Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Stainless Steel 304H Flanges Suppliers
Stainless Steel 304H Flanges Packaging
FAQ
Q: What are the implementation standards for 304H flanges?
Material standards: ASTM A182 (forgings), ASTM A240 (plates).
Flange standards: ASME B16.5 (raised face RF), ASME B16.47 (large diameter flanges).
Q: What is the cost of 304H flanges? How is it different from 316H?
Price range: About 70–80% of 316H flanges (because it does not contain molybdenum).
Cost advantage: In high-temperature, non-corrosive environments, 304H is an economical choice with a lifespan comparable to 316H.
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