ASTM A240 304h stainless steel chemical composition

304h Square tube

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

304 stainless steel is the commonest type of stainless-steel used around the globe, largely as a result of its excellent corrosion resistance and worth. It incorporates between sixteen and 24 percent and up to 35 percent nickel, as well as small quantities of carbon and manganese. All steels have the same primary iron and carbon composition, but stainless steel also contains a wholesome dose of chromium—the alloy that offers chrome steel its famous corrosion resistance. Dinesh Tube is one of the main Manufacturer, Exporter and Supplier of High-Quality ASTM A240 TP 304h Stainless Steel Plates and Sheets. We present a variety of SS 304h Plates and Sheets in Coils, Foils, Rolls, Plain Sheet, Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank , Ring . Available in numerous dimensions & grades, these stainless steel Chequered Plates and Sheets are widely utilized in different industries like power, engineering, development and plenty of more.


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)

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 (%)










Asiamet is a stockist, provider and exporter of top quality stainless steel strips as per ASTM A240 in various sizes and grades corresponding to 304/304L, 316/316L, 321/321H, 347/347H & Duplex 2205. Concatenating feedback of our merchandise from worldwide purchasers for greater than forty five years, YC INOX has gained quite a few information of chrome steel. On the idea of the adequate information, we possess solid background of manufacturing stainless steel tubes and pipes. Also being the one service heart in Taiwan, we now have by no means stopped our pace on research and growth. Therefore, YC INOX is able to transfer additional with both manufacturing expertise and quality in addition to present distinctive providers to our purchasers. Uniflex is one of the largest exporter, producer and provider of Stainless Steel Pipe and Tubes in India. The pipes and tubes we offer are being manufactured by using finest grade of raw materials and cutting-edge strategies.

While sheet metallic is less than 3 mm thick, plate metal is clearly thicker than 3 mm. Steel Plate is utilized in heavy-duty functions corresponding to these found within the aerospace, navy and transportation product manufacturing. Aluminium plate, machined to form, varieties the skins of jets and spacecraft fuel tanks, and so on. It is used for storage tanks in lots of industries, in part because some aluminium alloys become tougher at supercold temperatures.

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ASTM A240 Type 304H High Quality Plate

We are acknowledged merchants and wholesalers of Stainless Steel Products. All of our merchandise similar to pipes, rods, bars, sheets are sensible for the performance, design, functioning and high quality. Nitrogen supplies greater tensile and tensile yield energy without diminishing ductility, corrosion resistance, or nonmagnetic properties. High ductility, wonderful drawing, forming, and spinning properties.

304H has greater quick term and long run creep power than 304L at temperature up to 500 °C, and 304H is extra resistant to sensitization than 304L. In ASMEpressurevessel to be used above 815 °C, the carbon content material of 304H have to be 0.04% – 0.1%. Once obtain your query, the supplier will reply you as soon as potential. We at Sachiya Steel International ensure that all our materials go through strict high quality checks before dispatching them to our clients.

super 304h austenitic stainless steel

  • Gautam Tube is committed to upgrade the capabilities of its technical and administrative staff through formal coaching and steady technical quality consciousness.
  • Our all Astm h 304L SS Seamless Pipe are tested in accordance to internationally recognized requirements or our own more stringent inside check procedures, which is developed contemplating the cruel area conditions.
  • In addition to this we also provide specific to our client’s requirement.

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Gautam Tube is committed to upgrade the capabilities of its technical and administrative workers by way of formal coaching and continuous technical high quality consciousness. Our all Astm h 304L SS Seamless Pipe are examined in accordance to internationally acknowledged requirements or our own more stringent inside check procedures, which is developed contemplating the harsh area situations. In addition to this we also supply specific testing to our consumer’s requirement. Stainless metal 304 stripis used to manufacture merchandise in a variety of industries similar to food industries, chemical industries to electrical industries and generator industries.

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The model with guaranteed excessive carbon, 304H, may be required for elevated temperature service, similar to strain vessels. One of probably the most versatile and commonly used stainless steels available on the market, Grade 304 chrome steel is essentially the most standard used alloy of this sort. Essentially, Grade 304 is an austenitic chromium alloy which is also known as an “18/8” stainless as the make-up of the steel is eighteen% chromium and eight% nickel. This pipe belongs to the 300 sequence of pipes, particularly grade 304H.

SS 316 ASTM A240 Sheet packing will be based on international normal in bundles strapped by strips then into containers to avoid any injury. § The Imprimo™ finishes that are designs of various shapes, sizes and spacing that may be rolled into all kinds of metallic.

Low carbon content extends the time essential to precipitate a dangerous level of chromium carbides however does not remove the precipitation reaction for materials held for lengthy instances within the precipitation temperature range. In some circumstances, the low carbon Alloy 304L could present a lower corrosion rate than the higher carbon Alloy 304. The knowledge for formic acid, sulfamic acid, and sodium hydroxide illustrate this. Otherwise, the Alloys 304, 304L, and 304H could also A240 SS304H Stainless factory be thought of to perform equally in most corrosive environments. A notable exception is in environments sufficiently corrosive to cause intergranular corrosion of welds and warmth-affected zones on susceptible alloys. The Alloy 304L is most well-liked for use in such media in the welded condition because the low carbon level enhances resistance to intergranular corrosion.

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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 Rectangular tube
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