ASTM A240 Type 304H 20 mm Thick Stainless Steel Plate

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 . We are the large stainless material factory supplier in China.

SS 304H Sheet and Stainless Steel Sheet is in prepared stock with Siddhagiri Metals and Tubes. Steel Tubes India is an unbiased Stockholder and Processor of ASTM A H Stainless Steel Sheet & ASTM A H Stainless Steel Plate. With a large inventory vary and wonderful processing capabilities we are capable of provide most projects whether or not stock items or customized made . We can provide; Stock measurement plate & sheet, Cut to dimension plate & sheet, Cold forming of plate & sheet, And any other additional machining necessities that could be needed. Piyush Steel are Manufacturer, Exporter and Supplier of Stainless Steel Sheets and Plates. Piyush Steel are Manufacturing Stainless Steel 304H Sheets & Plates of top quality uncooked supplies. Available in sizes, thickness and specs, this plate is extremely demanded by numerous patrons.

  • Stainless Steel 316 Plates is designed for use for processes involving gasoline–tungsten–arc and gasoline–steel arc.
  • The SS 304L Coils is utilized in boilers, heat exchangers and in super heater elements.
  • The optimum machinability within the answer–the remedy circumstances–is feasible for all commonplace machining operations in Alloy 304H plates.
  • The 304H Stainless Steel Hot Rolled Sheet is sizzling rolled and may be cold labored for extra strength.
  • Such 304H SS Chequered Plate are similar to carbon and low-alloy steels in their microstructure.
  • The soldering of the SS 304L Cold Rolled Plates is problematic as a result of cracking and microstructural segregation.

304h stainless

Essentially, Grade 304 is an austenitic chromium alloy which is also referred to as an “18/eight” stainless because the make-up of the metal is eighteen% chromium and eight% nickel. The chromium content material promotes the material’s appreciable resistance to the effects of corrosion and oxidation. The stainless-steel alloy resists most oxidizing acids and will withstand odd rusting though this doesn’t mean that the steel won’t tarnish over time. For chrome steel sections which are welded closely, post-weld annealing may be needed to provide maximum corrosive resistance. Type 304L is a variation of Type 304 and has a decrease carbon content material which improves weldability and lowers the risk of lowered corrosion resistance across the weld. Type 304L additionally has a barely lower yield and tensile strength than Type 304.

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Aluminium plate, machined to shape, varieties the skins of jets and spacecraft gasoline tanks, and so on. It is used for storage tanks in many industries, in part because some aluminium alloys become more durable at supercold temperatures. This property is very helpful in holding cryogenic (very-low-temperature) materials. Co. is among the promising producers and suppliers of various metal works. These sheets and plates have been praised nicely for its outshining .

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The fatigue strength or endurance limit is the maximum stress below which material is unlikely to fail in 10 million cycles in air surroundings. The fatigue energy for austenitic stainless steels, as a bunch, is typically about 35 p.c of the tensile energy.

ASTM A240 TP304H Stainless Steel High quality plate

What does AISI mean?

American Iron and Steel Institute.

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We have about 3000tons each thickness and measurement stainless plates and large warehouse. Yes, it’s attainable to purchase twin licensed chrome steel plate in grades 304 and 304H. One good thing about stainless-steel plate 304H is that it could possibly withstand larger temperatures than grades 304 and 304L chrome steel plate.

304h stainless steel sheet

The width of it’s 3500mm, 1000mm, 1500mm, 1219mm, 2000mm, 1800mm, and 3000mm. The surface finishes of it are 2D, 2B, No4, No8, No1, BA,8K, checkered, mirror, hairline, , etching, brush, sandblasting. The types are coils, shim sheet, perforated sheet, plain sheet, chequered plate, clean, ring, rolls and so on. The highly permissible design power at elevated temperatures, specifically between the 1200 F–1400 degree F range (649 levels C–760degree C), additionally makes it thought-about in superior reactor concepts. ASTM A240 SS 304 Sheets are considerably extra workable however less workable than free stainless-steel machining.

What is difference between ASME and ANSI?

ANSI establishes and accredits performance and quality standards for products and services in a wide variety of sectors, while ASME is primarily focused on boilers and pressure vessels.

We manufacture all kinds of 304L sheets and please contact us with your requirements. Sheet steel is metal shaped by an industrial course of into thin, flat pieces. It is among the basic types used in metalworking and it can be minimize and bent into quite a lot of shapes. Plate and sheet are phrases A240 SS304H Stainless factory used to describe the classification of metal relying on its thickness. While sheet steel is lower than 3 mm thick, plate metal is clearly thicker than 3 mm. Steel Plate is utilized in heavy-responsibility applications similar to these found within the aerospace, army and transportation product manufacturing.

SS 304H Plate and Stainless Steel Plate is in ready stock with Siddhagiri Metals and Tubes. With the availability of contemporary know-how and naturally the newest tools along with the superior quality of alloy, the producers have produced the gorgeous quality of sheet plats. Jayesh metallic is today one of the distinguished main industry globally as a producer, supplier, exporter and stockiest of the prime quality of SS 304H Sheets Plates. The trade is fully customer centered is concerned in manufacturing gorgeous quality of sheet plates.

304h angle bar


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, kitchen equipment, hospital equipment, transportation Tools, wastewater treatment equipment.

Alloy 304 (S30400), 304L (S30403), and 304H (S30409) stainless steels are 18% chromium, 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 , 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)











304h stainless steel properties

We additionally offer aggressive range of ss 304h Plates and Sheets in purchasers requirement. 304H chrome steel plate is on the market for purchase at Penn Stainless Products. 304H chrome steel plate is often stocked in thicknesses between 0.188” and a couple of.0”.

304h plate

Stress corrosion cracking should be considered for all corrosion companies where the corrosive liquid could contain chloride. Grade 304 just isn’t typically utilized in seawater, because of the likelihood of crevice corrosion developing beneath sediments, precipitation and biofouling. Grade 304 has given excellent service in some conditions in potable water. Pitting and crevice corrosion might occur at greater chloride content material, and 200 ppm is accepted as the upper restrict.

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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 machine 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 ss