ASTM A240 Type 304H 20 mm Thick 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 China. We are the large stainless material factory supplier in China.

Our ASTM A240 UNS S30409 are of highest quality and extremely corrosion resistant. Co. is among the leading producer, provider and stockiest of products such as Stainless Steel, Aluminium Alloy, Copper Nickel Alloy, Carbon Steel, High Nickel Alloy, Alloy Steel and a few of the specialised products. Solution therapy or annealing could be accomplished by fast cooling after heating to °C. Steber Steelis a well-known worldwide exporter of 304 Stainless Steel Plate,Steber Steelis committed to provide each and every buyer with the very best standard of customer service. We deals in304 Stainless Steel Platein India & Overseas, offering a wide range of304 Stainless Steel Plate.

304h stainless steel composition

ASTM A240 TP304H Stainless Steel Perforated Sheet

Alloy 304L is used for welded merchandise which may be uncovered to situations which may cause intergranular corrosion in service.Alloy 304H is a modification of Alloy 304 in which the carbon content material is controlled to a range of 0.04-0.10 to provide improved excessive energy to parts exposed to temperatures above 800°F. Amardeep steel is among the main Manufacturer, Exporter and Supplier of High Quality ASTM A240 TP 304h Stainless Steel Plates and Sheets. We provide 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 several dimensions & grades, these stainless steel Chequered Plates and Sheets are extensively utilized in totally different industries like power, engineering, building and lots of more. We also offer aggressive vary of ss 304h Plates and Sheets in clients requirement. The addition of the additional carbon in 304H chrome steel plate greatly effects the mechanical properties of 304H stainless-steel plate.

ASTM A240 TP304H Stainless Steel Hot Plates

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  • Sizes in S30403 Sheet in end 2B.ASME SA H TP304H chrome steel plate ASTM A240 ASME SA 240 Grade 304H Stainless Steel SheetASME SA240 normal specification for chromium and chromium-nickel stainless steel plate, sheet, and strip for stress vessels and for common applications BBNSTEEL is specialised in supplying ASME SA240 metal plate in A H. Our gangsteel have min 600Tons inventory dimension for each dimension stainless-steel.
  • Typical specs for 304 and 304L ss plates are ASTM A-240, ASME SA -240 and A666.
  • The stainless-steel alloy resists most oxidizing acids and can stand up to ordinary rusting although this does not imply that the metal won’t tarnish over time.
  • One of essentially the most versatile and commonly used stainless steels available on the market, Grade 304 chrome steel is the most commonplace used alloy of this type.
  • Essentially, Grade 304 is an austenitic chromium alloy which is also known as an “18/8” stainless because the make-up of the metal is 18% chromium and 8% nickel.

Its used to provide industrial boilers, stress valves, steam exhaust, pipelines, cooling towers, heat exchangers, flanges, and condensers. 304H stainless-steel plate can also be commonly used in the chemical, gas, and oil refining industry. This capacity to withstand excessive temperatures makes 304H chrome steel a helpful material in theses environments. Most commonly 304H stainless steel is found in petroleum refining vegetation. 304H stainless steel plate consists of between 0.04% and 0.10% carbon. 304H stainless-steel plate can also be comprised of at most 0.75% silicon, 2.00% manganese and 0.045% phosphorous.

304h stainless steel fittings

For this purpose, the low carbon Alloy 304L is most well-liked for functions during which the material is put into service in the as-welded situation. Low carbon content extends the time necessary to precipitate a dangerous degree of chromium carbides however doesn’t remove the precipitation reaction for materials held for lengthy occasions in the precipitation temperature range. publicity of the 18-eight austenitic stainless steels to temperatures within the 800°F to 1500°F (427°C to 816°C) range may trigger precipitation of chromium carbides in grain boundaries. Such steels are “sensitized” and subject to intergranular corrosion when uncovered to aggressive environments.

Plate and sheet are words used to explain the classification of metallic depending on its thickness. While sheet steel is lower than 3 mm thick, plate steel is clearly thicker than 3 mm.

Hot Rolled Sheet Coil is produced from semifinished merchandise , which are lowered to sure thicknesses by rolling and annealing and wound into a roll. Cold Rolled Sheet Coil is produced by removing rust from a sizzling-rolled sheet by “pickling” it in a weak acid resolution, then washing, brushing, drying, oiling and unrolling the sheet and eventually performing chilly-rolling by passing the sheet by way of a reducing mill under strain and winding it right into a roll. Cold-rolled steel Coil is a more extremely finished product and has a smoother surface, larger dimensional accuracy and higher power. SS 304H Rolled Sheet Coil and Stainless Steel Rolled Sheet Coil is in ready inventory with Siddhagiri Metals and Tubes. 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. The greater the carbon stage of the material being welded, the larger the probability that the welding thermal cycle will outcome in the chromium carbide precipitation which is detrimental to corrosion resistance. To provide material at the best degree of corrosion resistance, low carbon materials ought to be used for materials put in service within the welded situation.

304h steel

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The fatigue strength or endurance limit is the maximum stress beneath which materials is unlikely to fail in 10 million cycles in air surroundings. The fatigue power for austenitic stainless steels, as a group, is typically about 35 p.c of the tensile power. Substantial variability in service outcomes is skilled since further variables influence fatigue power. As examples elevated A240 SS304H Stainless factory smoothness of floor improves power, increased corrosivity of service setting decreases energy. The annealed austenitic stainless steels preserve high influence resistance even at cryogenic temperatures, a property which, together with their low temperature energy and fabricability, has led to their use in dealing with liquified natural gasoline and different cryogenic environments.

Prosaic Steel and Alloys is a well known worldwide exporter of ASTM A l Sheets, Prosaic Steel and Alloys is committed to provide every buyer with the very best standard of customer support. We offers in ASTM A l Sheets in India & Overseas, offering a wide range of ASTM A l Sheets.


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)

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 (%)










Sizes in S30403 Sheet in finish 2B.ASME SA H TP304H chrome steel plate ASTM A240 ASME SA 240 Grade 304H Stainless Steel SheetASME SA240 commonplace specification for chromium and chromium-nickel stainless-steel plate, sheet, and strip for stress vessels and for general functions BBNSTEEL is specialised in supplying ASME SA240 metal plate in A H. Our gangsteel have min 600Tons inventory size for each size stainless-steel. One of probably the most versatile and commonly used stainless steels in the marketplace, Grade 304 chrome steel is probably the most commonplace used alloy of this kind.

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ASTM A240 TP304H Stainless Steel Clad Plate

What is SA 516 Gr 70 material?

ASTM A516 Grade 70 Plate is also called out as ASME SA516-70. This steel plate grade is a medium carbon alloy that also contains amounts of manganese, phosphorus, sulfur, and silicon. A516 is primarily used for service in welded pressure vessels where improved notch toughness is required.

Alloy 304L is used for welded merchandise which might be exposed to circumstances which might cause intergranular corrosion in service. Alloy 304H is a modification of Alloy 304 during which the carbon content material is managed to a variety of 0.04-0.10 to provide improved excessive temperature energy to parts uncovered to temperatures above 800°F.

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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 material
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