Stainless steel s347h plate supplier. Contact us to get free quote and sample!
The core value of S347H stainless steel lies in its high-temperature strength, excellent creep resistance, outstanding resistance to post-weld intergranular corrosion, and good oxidation resistance. These properties make it a key material in numerous industrial applications involving high temperatures, high pressures, corrosive media, or thermal cycling. HT PIPE is a astm a240 347h sheet supplier with 15+ export experience. Contact us for more information and quotes for free!
347 stainless steel plate in Chemical Processing and Specialty Chemicals
- Ammonia Plants: High-temperature shift converter outlet piping, waste heat boiler high-temperature zone shell/tubesheet, and high-temperature steam pipe flange gaskets (requires resistance to hydrogen erosion and high-temperature steam).
- Nitric Acid Plants: Oxidation furnace-related high-temperature piping and components.
- Urea Plants: Some internal components of the high-pressure stripper and high-pressure, high-temperature piping.
- Phthalic Anhydride (PA) and Maleic Anhydride (MA) Plants: Oxidation reactor internals (such as molten salt cooling coil supports and distributor plates), high-temperature gas cooler shell/tubesheet.
- Acetic Acid Plants: High-temperature reactor outlet piping and components.
- Acrylic Acid Plants: High-temperature reactor and subsequent high-temperature piping.

aisi 347h in Gas Industry
- High-temperature Chlorine/Hydrogen Chloride Gas Processing: Piping and heat exchanger components for drying chlorine or hydrogen chloride gas.
- Coal-to-Liquids (CTL), Coal-to-Olefins (CTO), and Coal-to-Natural Gas (SNG): High-temperature syngas purification downstream of the gasifier, key equipment in the shift converter (such as high-temperature fly ash filter housings/internals, shift converter inlet and outlet pipelines), and high-temperature, high-pressure steam systems.
astm 347h Environmental Protection and Waste Disposal
- Grate Systems: Movable and fixed grates (directly exposed to high-temperature combustion, waste corrosion, and mechanical wear).
- Superheater Panel Supports/Hangers: Critical components highly susceptible to failure due to long-term exposure to high-temperature, highly corrosive flue gases (containing HCl, SOx, and alkali metal salts).
- High-Temperature Sections of Flue Gas Cleaning (APC) Systems: Such as the flue ducts and guide plates from the outlet of the semi-dry reactor to the inlet of the bag filter (to resist acid dew point corrosion and dust erosion).
- Membranous wall fasteners/seals in the high-temperature area of the waste heat boiler: Required to maintain strength and sealing performance at high temperatures.
- Hazardous Waste Incineration (HWI): Operating conditions are more severe than those of municipal solid waste incineration (complex composition and higher corrosiveness). S347H is also used for key high-temperature structural components and flue gas ducts within the furnace.
- Sludge Incineration: Incinerator internals and high-temperature flue gas treatment equipment components.
ss 347h material in Food and Pharmaceutical Industry
- High-Temperature Sterilization Equipment: Autoclave and dry heat sterilizer internals, brackets, and trays.
- Spray Dryers: High-temperature hot air distributors and tower wall linings (exposed to high-temperature dry air and materials, requiring resistance to oxidation and thermal cycling).
- Baking and Puffing Equipment: Conveyor brackets and liner systems for high-temperature ovens and baking furnaces.
- Fermenter High-Temperature Sterilization Piping Systems: High-temperature steam piping and valve components in CIP/SIP systems (to withstand frequent high-temperature steam flushing and disinfectants).

uns s34700 in Pulp and Paper Industry
- Chemical Pulping: Black liquor evaporator tube sheets and high-temperature section shells. Recovery furnaces: Non-pressure-bearing furnace internals and flue gas duct regulating dampers.
- Lime kilns: High-temperature components.
s34709 in Shipbuilding and offshore engineering
- Marine boilers and incinerators: High-temperature flues and superheater supports for marine auxiliary boilers and incinerators (for processing oil residue and garbage).
- Exhaust system high-temperature sections: Flange gaskets and expansion joint bellows for high-temperature exhaust piping on large ship main engines.
- LNG carrier cargo tank secondary barrier support systems: Specific designs may require components that meet the requirements for high-strength and low-temperature toughness to support the insulation layer.
alloy 347h in Aerospace
- Aircraft engines: Non-high-temperature core areas such as the combustion chamber outer casing and tailpipe fin support structure for some engine models. High-temperature exhaust duct systems for engine test benches.
- Rocket engines: High-pressure gas ducts and exhaust cooling water jacket components for ground test facilities.
stainless steel s347h plate in Glass and ceramic manufacturing
- Glass melting furnaces: Regenerator checker brick support structures, flue dampers, and hot air ducts. Ceramic sintering kilns: Support frames for roller hearth kiln rollers, kiln cars, and kiln furniture (saggers and slabs) (must resist deformation and oxidation under long-term high-temperature loads, and withstand erosion by glaze volatiles).
- Fiberglass production: Components for high-temperature exhaust gas treatment systems.





