ASTM A240 304h pipe

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.

The excessive chromium content of the alloy supplies resistance to oxidizing options such as nitric acid up to fifty five% and as much as 176°F (80°C). Information given on this data sheet about the situation or usability of supplies respectively merchandise are not any warranty for their , but act as a description. The information, we give on for recommendation, comply to the experiences of the manufacturer as well as our own.

304h stainless steel chemical composition

Despite their corrosion resistance, stainless steels need care in fabrication and use to maintain their floor look even beneath normal circumstances of service. Alloy 309 (23% Cr thirteen.5% Ni) or nickel-base filler metals are used in becoming a member of the 18-8 austenitic to carbon steel. The austenitic stainless steels are considered to be the most weldable of the high-alloy steels and may be welded by all fusion and resistance welding processes. The Alloys 304 and 304L are typical of the austenitic stainless steels.

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Wide Strip is a strip of a width 600 mm or over, Whereas, Narrow Strip is a strip of a width less than 600 mm. SS 304H Rolled Sheet Strips and Stainless Steel Rolled Sheet Strips is in ready stock with Siddhagiri Metals and Tubes. Siddhagiri Metals and Tubes is a trusted suppliers and distributor of Stainless Steel 304H Sheet Plates.

Stubborn spots and deposits like burned-on meals could be eliminated by scrubbing with a non-abrasive cleaner and fiber brush, a sponge, or pad of stainless steel wool. The stainless-steel wool will go away a permanent mark on clean chrome steel surfaces.

  • Also, it’s wealthy in chromium elements and that’s the root of its superb anti-rusting qualities.
  • It could be effortlessly hardened even when it is handled with chilly working.
  • This mixture of properties is the rationale for the extensive use of those alloys which characterize nearly one half of the entire U.S. stainless-steel production.
  • It is essentially the most versatile and low-temperature abilities amongst many grades.

304h stainless steel chemical composition

304 and 304L chrome steel plates are part of the austenitic family of stainless steel and they’re one of the versatile and broadly used varieties of stainless plate. They are a relatively low price stainless product and used in a wide range of functions. 304 grades have excellent low temperature properties and respond well to hardening by cold working. 304 chrome steel plate grades have good welding characteristics and post weld annealing isn’t normally required to restore efficiency. 304 SS plates have glorious corrosion resistance in quite a lot of different media. Typical for 304 and 304L ss plates are ASTM A-240, ASME SA -240 and A666.


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 , 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 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 (%)










304h stainless plate

When MAG welding is carried out with wire, a power supply with pulse present may be necessary to obtain good weldability. When a material is uncovered to an oxidising surroundings at elevated temperatures, a kind of protective oxide layer might be formed on its surface. The alloying elements which might be most helpful for oxidation resistance are chromium, silicon, and aluminium. A optimistic has also been achieved with small additions of so-referred to as energetic elements, e.g. ttrium, hafnium, uncommon earth metals (REM, e.g. Ce and La). These have an effect on the oxide progress in order that the fashioned layer might be thinner, more durable, and extra adherent and thus extra protecting.

ASTM A240 TP304H Stainless Steel Bright Annealed Finish Plate

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Documents provided along with the cargo embody Certificate of Origin, Material Test Certificate as per EN .1 and .2, NACE MR10103 and NACE MR0175 licensed Test Certificates. 304H Stainless Steel is a troublesome austenitic stainless-steel topic to work hardening throughout deformation and, until modified for improved machining response, is resistant to chip breaking. The finest machining results are achieved with slower speeds, heavier feeds, glorious lubrication, sharp tooling, and powerful, rigid gear. For most corrosion resistance, forgings ought to be annealed at 1900°F minimum and water quenched or rapidly cooled by different means after sizzling working operations.

Does martensitic stainless steel rust?

All martensitic stainless steels should be used in the hardened, or hardened and stress relieved, condition in order to maximize the corrosion resistance. In the as-annealed condition, martensitic stainless steels are prone to intergranular corrosion and overall exhibit poor corrosion performance.

They are most well-liked to make use of for the conveyor belts due to their straightforward availability and value-friendly nature. Grade 304 is highly demanded in the fields of food processing and handling industries as they’re anti-corrosive in addition to excessive-temperature adapters. These sheets and plates are being used diversely in the architectural and constructional business for its excessive pressure and stress absorbance qualities. Alloys 304, 304L, and 304H are additionally immune to reasonably aggressive organic acids corresponding to acetic and reducing acids such as phosphoric. The 9 to 11 percent of nickel contained by these 18-8 alloys assists in offering resistance to moderately lowering environments.

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Due to addition of Copper, it has increased resistance to phosphoric, sulphuric and hydrochloric acid focus. It is usually known as tremendous austenitic stainless-steel as a result of superiority over other 300 series austenitic steel grades. 904L is primarily used in manufacturing and transport of phosphoric acid in addition to in environment containing concentrations of phosphoric acid or phosphorous fuel. To ensure weld steel properties (e.g. power, corrosion resistance) equivalent to those of the mother or father steel, a filler material with an identical composition ought to ideally be used. In some instances, nonetheless, a differing composition might enhance e.g. weldability or structural stability. Gas shielded welding has resulted in one of the best creep properties for welds.

ANSON can provide ASTM A204 metal plates from inventory or from reputed metal mills. We also supply metal fabrication service the place steel plates can go through processings like cutting , drilling, welding, milling, machining as you require. Our steel mills have fabricating employees which have 5-10 years of working expertise. If you are interested in shopping for ASTM A204 metal plate merchandise, contact us now for the most recent value or check the next A240 SS304H Stainless factory desk for equal metal grade of ASTM A204. It even has outstanding formability, large energy that makes the product dependable and sturdy too. This stainless-steel is also recognized to be the most weldable excessive alloy metal. In it, you can see the use of the carbon content material that of 0.04 to 0.10 that strengthen the product and make it in a position to be used in the excessive temperature.

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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 stainless steel properties
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