ASTM A240 tp 304h stainless steel

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 factory supplier in China.

tp 304h stainless

The higher the carbon stage of the fabric being welded, the higher the chance that the welding thermal cycle will outcome within the chromium carbide precipitation which is detrimental to corrosion resistance. To present materials at the best degree of corrosion resistance, low carbon materials must be used for material put in service in the welded condition. Alternately, full annealing dissolves the chromium carbide and restores a high stage of corrosion resistance to the usual carbon content supplies. The austenitic stainless steels are considered to be the most weldable of the excessive-alloy steels and could be welded by all fusion and resistance welding processes.

Where excessive power is required at temperatures above 500°C and up to 800°C grade 304H is beneficial. abs grade ah36 shipbuilding and offshore industries metal Has been committed to the of export steel business more than 10 years. Our service involves every kind of steel product , including uncooked materials and processed completed merchandise. The chromium content material of 304 stainless steel varies between 17.5% and 19.5%. The most common grades of chrome steel 304 are known as 18/8 and 18/10. A hard, brittle metal, chromium has some exceptional properties, but an lack of ability to react with water just isn’t certainly one of them. To understand what makes 304 stainless steel so immune to corrosion, you have to take a look at its bodily .

304h seamless pipes

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astm 304h stainless steel

Which stainless steel brand is best?

8 Best Stainless Steel Cookware Brands with Reviews 1. Made In (American – Made) Page Contents.
2. Viking. Viking is one of the bestselling brands in cookware and is famous for making efficient, durable cookware and other kitchen appliances.
3. All-Clad.
4. Calphalon.
5. Cuisinart.
6. KitchenAid.
7. T-Fal.
8. Cooks Standard.

Our engineers and metallurgists shall be pleased to offer further data and purposes recommendation. It is an austenitic, corrosion resistant metal with wonderful energy, toughness, fabrication characteristics and weldability.

What is ASTM a240?

ASTM A240 covers stainless steel plates, sheets and strips for pressure vessels and general applications. This specification covers chemical composition and mechanical properties for various grades of ferritic, austenitic, martensitic, duplex, super duplex and high moly stainless steel alloys.

Stainless Steel ASTM A240 TP304H HR Plates

Amardeep metal is one of the leading Manufacturer, Exporter and Supplier of High Quality ASTM A240 TP 304h Stainless Steel Plates and Sheets. We provide a wide of SS 304h Plates and Sheets in Coils, Foils, Rolls, Plain , Shim Sheet, Perforated Sheet, Chequered Plate, Strip, Flats, Blank , Ring . Available in several dimensions & grades, these stainless-steel Chequered Plates and Sheets are widely used in different industries like energy, engineering, building and plenty of extra. We additionally offer aggressive range of ss 304h Plates and Sheets in purchasers requirement. 304H stainless steel plate is available for buy at Penn Stainless Products.

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304H chrome steel plate is also commonly used in the chemical, gas, and oil refining trade. This ability to withstand high temperatures makes 304H chrome A240 SS304H Stainless factory steel a helpful material in theses environments. Most commonly 304H stainless-steel is found in petroleum refining vegetation.

ASTM A240 TP304H Stainless Steel Flat Plate

Aluminium plate, machined to shape, forms the skins of jets and spacecraft gasoline tanks, etc. It is used for storage tanks in lots of industries, in part as a result of some aluminium alloys turn out to be more durable at supercold temperatures. This property is particularly useful in holding cryogenic (very-low-temperature) materials. 904L is an austenitic grade stainless-steel with low carbon and higher resistance to stress and crevice corrosion cracking as in comparison with AISI 316 & AISI 317 stainless steel grades. Due to addition of Copper, it has elevated resistance to phosphoric, sulphuric and hydrochloric acid focus. It is sometimes known as super austenitic stainless steel because of superiority over different 300 collection austenitic steel grades.

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Exposure of the 18-8 austenitic stainless steels to temperatures within the 800°F to 1500°F (427°C to 816°C) vary could cause precipitation of chromium carbides in grain boundaries. Such steels are “sensitized” and topic to intergranular corrosion when exposed to aggressive environments. The carbon content of Alloy 304 could permit sensitization to occur from thermal situations skilled by autogenous welds and warmth-affected zones of welds. For this purpose, the low carbon Alloy 304L is preferred for purposes during which the fabric is put into service within the as-welded condition. Low carbon content extends the time essential to precipitate a dangerous degree of chromium carbides but doesn’t remove the precipitation reaction for material held for lengthy occasions in the precipitation temperature range.

  • Type 304L also has a slightly lower yield and tensile energy than Type 304.
  • Type 304 and Type 304L have very related chemical and mechanical properties and are often included on a single material take a look at certificate when the actual properties of a stainless steel plate meet the criteria of both sorts.
  • Type 304l and Type 304L have very related chemical and mechanical properties and are often included on a single material check certificate when the precise properties of a chrome steel plate meet the criteria of both varieties.
  • Type 304L is a variation of Type 304 and has a decrease carbon content which improves weldability and lowers the danger of decreased corrosion resistance across the weld.
  • Properties given on this data sheet are typical for flat rolled products coated by ASTM A240/A240M. It is affordable to anticipate specifications in these standards to be related but not essentially identical to those given on this information sheet.

Generally, one hundred ppm chloride is considered to be the restrict for the 18-eight alloys, significantly if crevices are present. Higher levels of chloride might cause crevice corrosion and pitting. For the extra extreme situations of upper chloride ranges, lower pH, and/or higher temperatures, alloys with greater molybdenum content material similar to Alloy 316 must be considered. The 18-8 alloys usually are not beneficial for publicity to marine environments. A370 Test Methods and Definitions for Mechanical Testing of Steel Products. A480/A480M Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip.


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 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 (%)










Stainless steels have the next resistance to oxidation and corrosion in many pure and man-made environments; nonetheless, it is important to choose the proper kind of stainless-steel for the use. There are over one hundred fifty grades of chrome steel, of which fifteen are the most used. By adding sufficient nickel, the crystalline construction of the steel alloy modifications from a ferritic structure to an austenitic one.

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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 stainless 304h properties
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