ASTM A240 Stainless Steel Cold Rolled Plates

Gangsteel produce and export ASTM A240 304H stainless steel plate, ASTM A240 TP304H Stainless Steel No.1 Finish Plate and we supply TP304H stainless steel stock list thickness 2mm to 300mm at Origin China. We are the large stainless material factory supplier in China.

304h stainless steel temperature limits

The low carbon model, 304L sheets are glorious for welding functions as they’ve much less A240 SS304L metal plate MILL carbide precipitation and fewer localized corrosion. The ASME SA240 Stainless Steel 304 Coil Thickness ranges as much as 200mm and the width and the size ranges extensively relying on the equipment requirements as properly. AMS and ASTM requirements exist which cover the flatness requirements A240 SS304H Stainless factory for most plate and sheet objects as produced by the mill. Specifications A 480 and AMS 2242 cover most of the stainless steel flat merchandise. It is important to do not forget that these tolerances apply to the MILL produced product, where they have specialised gear to carry out flattening operations.

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304h stainless steel uk

The 9 to 11 p.c of nickel contained by these 18-eight alloys assists in providing resistance to reasonably decreasing environments. The extra highly reducing environments similar to boiling dilute hydrochloric and sulfuric acids are shown to be too aggressive for these supplies. Alloy 304 is the usual alloy since AOD expertise has made decrease carbon levels more simply attainable and economical. Alloy 304L is used for welded merchandise which may be exposed to conditions which could cause intergranular corrosion in service. Also, these Stainless Steel 304L Slatting Plates are again and again plated within the firm of nickel or chrome for a better end and superior resistance to corrosion. These Stainless Steel 304H Slatting Coils are a trouble-free and profitable technique to plug your pipe.

While 316 just isn’t utterly rust-proof, the alloy is more corrosion-resistant than different widespread stainless steels. Scale or slag that types from welding processes is eliminated with a stainless-steel wire brush. Normal carbon steel wire brushes will go away carbon steel particles in the floor which is able to finally produce floor rusting. For extra severe functions, welded areas should be handled with a descaling answer corresponding to a mix of nitric and hydrofluoric acids, and these must be subsequently washed off. Despite their corrosion resistance, stainless steels need care in fabrication and use to keep up their floor appearance even underneath regular conditions of service. A temperature gradient is produced in the materials being welded which ranges from above the melting temperature in the molten pool to ambient temperature at far from the weld.

ASTM A240 TP304H Stainless Steel Diamond Plate

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This mixture of properties is the reason for the in depth use of those alloys which represent almost one half of the whole U.S. chrome steel production. The 18-eight stainless steels, principally Alloys 304, 304L, and 304H, are available in a variety of product forms together with sheet, strip, and plate. The alloys are covered by a wide range of specs and codes relating to, or regulating, development or use of equipment manufactured from these alloys for particular situations. Food and beverage, sanitary, cryogenic, and stress-containing are examples. The alloys are used extensively in gear and utensils for processing and handling of meals, drinks, and dairy . Heat exchangers, , tanks, and different course of instruments in contact with recent water additionally make the most of these alloys. Austral Wright Metals assumes no liability in reference to the data on this Product Data Sheet.

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304H stainless steel belt, SUS304H stainless steel belt, 304H stainless steel belt, 0Cr18Ni9, 304-general model; namely 18/8 stainless steel. The GB grade is 0Cr18Ni9.
Vickers hardness (HV) 370°-420° and Hardness tolerance (HV) ±20°

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a240 Type 304H widely used material.
Corrosion resistance, heat resistance, good mechanical properties, good processing performance at room temperature such as deep drawing, bending, etc., will not harden after heat treatment, can withstand general rust in the building, and can resist erosion by food processing media (but contains concentrated acid
Corrosion may occur due to high temperature and chloride components), and it can resist organic compounds, dyes and a wide variety of inorganic compounds.
ASTM A240 Stainless Steel 304H Chemical Composition



ASTM A240 Chemical Composition












Austenitic Steels










A240 Type 304L (low carbon), good resistance to nitric acid, and durable for medium temperature and concentration of sulfuric acid, widely used as liquid gas storage tanks, low temperature equipment (304N), appliances and other consumer products, equipment, hospital equipment, transportation Tools, wastewater treatment equipment.

Alloy 304 (S30400), 304L (S30403), and 304H (S30409) stainless steels are 18% , 8% nickel austenitic alloys, which are the most common and commonly used alloys in the stainless steel family. Because these alloys have one or more of the following properties, they can be used in various applications.
Properties include:
STM A240 TP304H Stainless Steel Plate Physical Properties


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)




at 1000C

at 5000C












A high-alloy steel A240 304h that can resist corrosion in the air or in chemically corrosive media. It has a beautiful surface and good corrosion resistance. It does not need to undergo surface treatment such as plating, but exerts its inherent surface properties. It is used in various steels.
One kind, usually called stainless steel.
High alloy steels such as 13 chromium steel and 18-chromium nickel steel are representative of performance.
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From a metallographic point of view, because stainless steel contains chromium, a very thin chromium film is formed on the surface. This film isolates the intruding oxygen from the steel for corrosion resistance.

In order to maintain the inherent corrosion resistance of stainless steel, steel must contain more than 12% chromium
SS 304H Plate Equivalent grades









SS 304H



304, 304L, and 304H alloys are the most prone to stress corrosion cracking (SSC) among austenitic stainless steels because of their relatively low nickel content.
The conditions that cause stress corrosion cracking are: (1) the presence of halide ions (usually chloride), (2) residual tension, and (3) the temperature exceeds 120°F (49°C).
Cold deformation during alloy forming, stenting into tube sheet, welding operations, etc. can all cause stress.
Annealing and stress relief heat treatment after cold deformation can reduce stress, thus reducing the possibility of halide stress corrosion cracking.
In the environment that may cause intergranular corrosion, it is best to choose low-carbon 304L alloy when working under low-temperature annealing.


AASTM A240 Stainless Steel 304H Plate Mechanical Properties


Mechanical Properties for Stainless Steel Plates, Stainless Steel Sheet



Tensile Properties


Yield Strength (Mpa)

Tensile Strength (Mpa)

Elongation (%)










Yes, it’s attainable to buy twin licensed stainless-metal plate in grades 304 and 304H. 304H Stainless steel plate is normally discovered all via the facility technology business. Its used to provide industrial boilers, pressure valves, steam exhaust, pipelines, cooling towers, heat exchangers, flanges, and condensers. 304H stainless-metal plate can also be commonly used within the chemical, fuel, and oil refining trade.

Preliminary results showed the consequences of machining parameters to residual stresses and near-floor deformation ranges in completed components. We have our own metal pipe factory, superior processing gear and wonderful team.

Nearly 2X strength of 304 & 316 with higher corrosion resistance than 317L. Martensitic PH stainless with high strength, hardness, superior toughness and good corrosion resistance. 317L/317 Stainless Steel – An austenitic stainless-steel with elevated molybdenum content for improved pitting resistance.

Surface roughness parameters had been optically evaluated and X-ray diffraction residual stress measurements had been employed to measure the extent of machining abuse on the floor. In addition, deformation throughout the sub-flooring layer was examined via scanning electron microscopy and electron backscatter diffraction . The experimental measurements of ground roughness and ground residual stresses had been used to verify a statistical model developed to optimise the selection of the strategy parameters.

  • Food and beverage, sanitary, cryogenic, and stress-containing purposes are examples.
  • The alloys are used extensively in gear and utensils for processing and dealing with of meals, drinks, and dairy merchandise.
  • The alloys are covered by a wide range of specs and codes regarding, or regulating, building or use of equipment manufactured from these alloys for specific circumstances.
  • Heat exchangers, piping, tanks, and different course of instruments in touch with current water additionally make the most of these alloys.

304h round bar

For production quantities, we are able to provide stainless steel 304H strips with shortest attainable lead times. The fatigue power or limit is the utmost stress beneath which material is unlikely to fail in 10 million cycles in air environment. The fatigue energy for austenitic stainless steels, as a group, is usually about 35 percent of the tensile strength.

Typical specifications for 304 and 304L ss plates are ASTM A-240, ASME SA -240 and A666. Part of the rationale for that is that, historically, completely different mills produced their proprietary alloys to match their capabilities. Although most of these supplies are actually in the public area, they’re still produced to separate ASTM specifications and the actual necessities can range from one alloy to a different.

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Gangsteel mainly products are 304h Square tube,304h stainless,304h Rectangular tube,304h seamless pipes,304h seamless tubes,304h welded pipes,304h angle bar,304h H Beam,304h channel beam,304h round bar ,304h cutting part,304h part,304H CNC cutting parts,304H water jet cutting parts,304H laser cutting parts and stainless steel 304h. If you have requirement, please contact us by email

ASTM A240 304H laser cutting parts
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