ASTM A240 Hair Line Finished Stainless Steel 304H Plate

304h stainless steel chemical composition

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 2mm to 300mm at Origin China. We are the large stainless material factory supplier in China.

In some circumstances, the low carbon 304L could show a lower corrosion price than the upper carbon Alloy 304. The knowledge for formic acid, sulfamic acid, and sodium hydroxide illustrate this. Otherwise, the Alloys 304, 304L, and 304H could also be thought-about to perform equally in most corrosive environments. A notable exception is in environments sufficiently corrosive to cause intergranular corrosion of welds and heat-affected zones on vulnerable alloys. The Alloy 304L is preferred to be used in such media within the welded situation since the low carbon level enhances resistance to intergranular corrosion.

tp 304h stainless steel

  • The 9 to eleven % of nickel contained by these 18-eight alloys assists in offering resistance to moderately decreasing environments.
  • The additional highly lowering environments corresponding to boiling dilute hydrochloric and sulfuric acids are confirmed to be too aggressive for these materials.
  • It even has outstanding formability, large energy that makes the product reliable and sturdy too.

We choose material after testing and strictly verifying all required parameters. Our group ensures to ship glorious high quality SS 304H Sheet Plate to our clients. By analyzing these Plates at a number of stages of production, we check classes and parameters of Plates. We follow national and international standards to check and to manufacture SS 304H Sheet Plate. 304H is a excessive Carbon version of Stainless Steel, which is helpful and useful kinds of Stainless Steel. This alloy has excellent yielding power, which makes it appropriate to help in any atmospheric circumstances. Those are IGC take a look at, flattening/flaring check, PMI test, hardness take a look at, macro/micro take a look at, mechanical check, chemical check, pitting resistant take a look at is performed.

304h stainless steel plate

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The alloy 304h plate can even function efficiently in caustic options freed from chlorides or fluorides at moderate temperatures. We, Tesco Steel & Engineering, adapted the comprehensive manufacturing present, supply steady mechanical properties of standard and non-standard specifications of Stainless Steel Sheets/ Plates. We, Tesco Steel & Engineering, is supplying Pipes/ Tubes to the broad range of business sectors across the globe. We imagine in providing well timed and harm-free delivery to fulfill our esteem purchasers. We, Tesco Steel & Engineering, are the distinguished supplier of Stainless Steel Sheets/ Plates.

Are 18 8 and 304 the same?

304 stainless steel contains a minimum of 18% chromium and 8% nickel which gives its alternate name 18/8 stainless steel. 304 stainless steel contains chromium-nickel content and low carbon. This stainless steel type is oxidation and corrosion resistant.

The Alloy 304 Stainless Steel Plate is probably the most versatile product which reveals good mechanical properties and sturdiness. 304L Stainless Steel Plate has decrease carbon content compared to SS 304 that offers great forming and welding traits. For a chrome steel, the Ni factor in its composition is very important, which directly determines the corrosion resistance and value of 304 stainless-steel. Also, these Stainless Steel 304L Slatting Plates are again and again plated within the firm of nickel or chrome for a greater end and superior resistance to corrosion. These Stainless Steel 304H Slatting Coils are a hassle-free and profitable method to plug your pipe. Stainless Steel 304L Perforated Sheets is a span of straight pipe by the use of having male threads on both the ends.


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






















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 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 (%)










Also, they’ve the best stage at 1400 levels Celsius except for the 304H. publicity of the 18-8 austenitic stainless steels to temperatures throughout the 800°F to 1500°F (427°C to 816°C) vary could trigger precipitation of chromium carbides in grain boundaries. 304H Stainless Steel Sheets Plates can be used in extreme corrosive environments, the place weld annealing only required in excessive stress functions. Stainless Steel 304 Plates has a high ease of fabrication, outstanding formability, and tremendous power. Stainless Steel 304L Plates is non- within the annealed situation but may become slightly magnetic as a result of chilly working or welding. Minimum mechanical properties for annealed Alloys 304 and 304L austenitic stainless-steel plate as required by ASTM specs A240 and ASME specification SA-240 are shown below.

Stainless Steel Sheets/ Plates resist the stress corrosion cracking and oxidation as these include nickel. Our offered sheets/plates are versatile and sturdy to sustain larger strain and temperature situations. Alloys 304, 304L, and 304H are additionally proof against moderately aggressive natural acids just like acetic and decreasing acids similar to phosphoric. The 9 to eleven % of nickel contained by these 18-eight alloys assists in offering resistance to moderately decreasing environments. The further highly reducing environments corresponding to boiling dilute hydrochloric and sulfuric acids are confirmed to be too aggressive for these supplies. It even has outstanding formability, massive power that makes the product dependable and durable too. This stainless steel may also be identified to be basically the most weldable excessive alloy metallic.

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304h stainless steel pipe

The 18-8 alloys are typically non-magnetic in the annealed condition with magnetic permeability values typically lower than 1.02 at 200H. Permeability values will differ with composition and will increase with cold work.

ASTM A240 TP304H Stainless Steel Floor Plate

This is why the industry calls this sort of stainless steel 18/eight stainless-steel. All the chrome steel grades 304, 304L, and 304H are chemically compounded with the components like chromium, phosphorus, silicon, manganese, carbon, sulphur, molybdenum, and nickel. Besides different elements chromium, molybdenum, and nickel are the primary contributors in the whole composition. Hence, it reveals giant yield in addition to tensile strengths, good temperature resistance, and elongation vary. In basic, all three grades are being elongated by way of the utmost restrict of forty%.

ss 304h chemical composition

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The chromium content promotes the material’s considerable resistance to the effects of corrosion and oxidation. The chrome steel alloy resists most oxidizing acids and will face up to ordinary rusting although this does not mean that the metal will not tarnish over time. For chrome steel sections that are welded heavily, post-weld annealing could also A240 SS304H Stainless factory be essential to offer most corrosive resistance. Gangsteel produce ASTM A Stainless steel plates, S30400, A240 Type 304 Stainless metal cutting parts by water chopping, laser chopping and cnc cutting. Nextgen metal & alloys are the best and provider of the wonderful high quality of SS 304 / 304L / 304H Sheet Plate.

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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 TP304H Stainless Steel CR Plates
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