ASTM A240 304h stainless steel fittings

ASTM A240 TP304H Stainless Steel No.1 Finish 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.

The low carbon “L” grades are used for functions involving remedies or high temperature publicity, e.g. welding of heavy or medium sections. The low carbon content material of steels prevents carbide precipitation at grain boundaries, which might trigger inter-granular corrosion underneath corrosive operation situations. Carbide precipitation occurs at temperatures ranging from about 450 to 850°C.

304h stainless steel suppliers

Each alloy represents a wonderful mixture of corrosion resistance and fabricability. This combination of properties is the reason for the extensive use of those alloys which characterize practically one half of the whole U.S. stainless steel manufacturing. The 18-eight stainless steels, principally Alloys 304, 304L, and 304H, can be found in a variety of product forms including sheet, strip, and plate.

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304h seamless pipes

They are most popular to use for the conveyor belts due to their easy availability and value-pleasant nature. Grade 304 is extremely demanded in the fields of meals processing and dealing with industries as they’re anti-corrosive in addition to high-temperature adapters. These sheets and plates are being used diversely in the architectural and constructional business for its excessive pressure and stress absorbance qualities. 304 and 304L generally has the Double-grade certification, especially sheet, tubing, and round bar.

It is increasingly widespread for “twin licensed” products to be stocked – notably in plate, pipe and bar. Dual certified product is intentionally supposed to meet for both commonplace and “L” grades, however can’t be utilized in purposes for “H” grade. If an application requires an “H” grade, this should be specified at time of order.

ASTM A240 TP304H Stainless Steel Chequered Plate

All the chemical contents and mechanical properties meet the usual specification of 304 and 304L. But the double-grade licensed product may not be accepted in excessive temperature software. 304H has a higher strength beneath excessive temperature, subsequently it’s usually utilized within the structural and stress-bearing use above 500℃ or even 800℃. It doesn’t trigger any problems to excessive temperature use, but it will reduce corrosion resistance to aqueous solution.

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A240 304H STAINLESS STEEL PLATE

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

Type

Grade

ASTM A240 Chemical Composition

ASTM(A240M)

Others(JIS)

C

Si

Mn

P

S

Ni

Cr

Mo

Others

Austenitic Steels

304H

0.04/0.10

≤0.75

≤2.00

≤0.045

≤0.030

8.0/10.5

18.0/20.0

 

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 (), 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

Grade

Density (kg/m3)

Elastic (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)

0-1000C

0-3150C

0-5380C

at 1000C

at 5000C

304H

8000

193

17.2

17.8

18.4

16.2

21.5

500

720

 

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

STANDARD

WERKSTOFF NR.

UNS

JIS

AFNOR

BS

GOST

EN

SS 304H

1.4948

S30409

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 under low-temperature annealing.

 

AASTM A240 Stainless Steel 304H Plate Mechanical Properties

Type

Mechanical Properties for Stainless Steel Plates, Stainless Steel Sheet

ASTM(A240M)

Others(JIS)

Tensile Properties

Hardness

Yield Strength (Mpa)

Tensile Strength (Mpa)

Elongation (%)

HBW

HRBW

AusteniticSteels

304H

≥205

≥515

≥40

≤201

≤92

There are so many alternative 304H merchandise types that are obtainable today. Our discount 304/304l/304h stainless steel pipe/tube from China is available in a wide range of sizes, types and prices. The relationship between 316, 316L and 316H is similar as that between the 304 collection of stainless steels. for some other products, significantly tube and pipe, have a carbon limit of 0.035% or 0.040% maximum for 304L and 316L, however are otherwise the identical.

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When used at temperatures of about °C, these grades are subjected to sensitization which, in flip, causes aqueous corrosion, and discount in toughness and ductility at ambient temperatures. Alloy 304L is used for merchandise which may be uncovered to circumstances which could trigger intergranular corrosion in service. Alloy 304H is a modification of Alloy 304 in which the carbon content material is managed to a spread of 0.04-0.10 to provide improved excessive temperature strength to elements uncovered to temperatures above 800°F. All the stainless steel grades 304, 304L, and 304H are chemically compounded with the components like chromium, phosphorus, silicon, manganese, carbon, sulphur, molybdenum, and nickel. Besides other components chromium, molybdenum, and nickel are the major contributors in the entire composition. Hence, it exhibits large yield in addition to tensile strengths, nice temperature resistance, and elongation vary.

  • Alloy 304/304H (UNS S30400/ S30409) is a modification of the most extensively utilized “18-eight” chromium-nickel austenitic chrome steel.
  • “H” grades are higher carbon variations of normal grades and have elevated energy, particularly at elevated temperatures .
  • Once sensitised, impaired aqueous corrosion resistance and some discount in ambient temperature ductility and toughness will outcome .
  • Check Stainless Steel 304H Welded Pipe value per meter, ASME SA312 TP304H Round Pipe, DIN 1.4948 AISI 304H Square Pipe dimensions.
  • / Piece SS 304H Pipe Flanges US $ / Ton Stainless Steel 304H Weld Neck Flanges US $1 900 / Piece ASTM A H stainless steel plate flanges US $0.

Austenitic stainless steels are inherently powerful, sustaining the ductile fracture mode and high absorbed power in impression tests to cryogenic temperatures (-200°C). Grade 304 contains 18% chromium, which makes it immune to many corrosive environments.

What does ASTM mean?

The letters “ASTM” used to stand for the American Society for Testing and Materials.

Most generally 304H stainless-steel is present in petroleum refining plants. Amardeep metal 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 different A240 SS304H Stainless factory dimensions & grades, these stainless-steel Chequered Plates and Sheets are extensively used in totally different industries like energy, engineering, construction and many more.

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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 admin@gangsteel.com

ASTM A240 304h vs 304l