304 stainless steel standard
Gangsteel produce ASTM A240 304 Stainless steel plates, S30400, A240 Type 304 Stainless steel cutting parts by water cutting, laser cutting and cnc cutting. ASTM a240 (chromium and chromium nickel stainless steel plate, sheet, and strip for pressure essels and general applications. a240 304 stainless steel is a common material in stainless steel with a density of 7.93g/cm3, which is also called 18 / 8 stainless steel in the industry. High temperature resistant 800 ��, with good processing performance and high toughness, it is widely used in industry, furniture decoration industry and food and medical industry.
If you have an interest in buying ASTM A204 steel plate merchandise, contact us now for the most recent value or check the following desk for equal metal grade of ASTM A204. ASTM A240 steel plate covers Austenitic Steels, Ferritic steels and Martensitic Steels. The time period ‘corrosion resistant metal’ is used when the alloy has lower than the 12% minimal of chromium, for instance in the aviation industry. There are completely different grades and floor finishes of chrome steel, relying on the place it will be used. Stainless steels have the next resistance to oxidation and corrosion in lots of pure and man-made environments; nonetheless, you will need to select the proper kind of chrome steel for the use.
- The properties are like corrosion resistance, crevice corrosion resistance, pitting corrosion resistance.
- Some of the properties that are there in excessive the plates and sheets are due to the carbon alloying factor current in the alloy.
- Moreover, the chrome steel grade 304 and 304L is the rationale that the SS 304L Plate is sweet at inheriting totally different properties.
Grade 304 has given wonderful service in some conditions in potable water. Pitting and crevice corrosion may happen at larger chloride content material, and 200 ppm is accepted because the higher limit. Austral Wright Metals might be happy to provide advice for specific applications.
The 304H model has a assured minimum carbon content, which ensures good power at high temperatures. 304L Stainless Steel Plate is a sheet of SS with a thickness of 6mm or more. SS 304L Plate is used in functions the place sturdiness is more necessary than saving weight. It is used in cars where durability is required to pass crash testing.
It is obtained by mechanically polishing a No. 3 finish with progressively finer abrasives. No. 3 Finishis characterised by short, coarse, parallel polishing traces, which lengthen uniformly along the size of the coil. Bright Annealed Finish- A easy, shiny, reflective finish usually produced by chilly rolling followed by annealing in a protective environment so as to forestall oxidation and scaling throughout annealing.
304 quality stainless steel
|
Product Type |
A 240 304 Sheet, A 240 304 Plate |
|
SS 304 ASTM Standard Specification |
ASTM A240 / ASME SA240 |
|
Thickness |
0.1 to 3000 mm Thk |
|
Width |
10-2500mm |
|
Length |
2m, 2.44m, 3m, or as required |
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Finish |
2B, 2D, BA NO (8), Cold rolled sheet (CR), Hot rolled plate (HR), SATIN (Met with Plastic Coated), No.1 finish hot rolled, 1D, 2B, No.4, BA, 8K, satin, hairline, brush, mirror etc. |
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Hardness |
Half Hard, Soft, Hard, Quarter Hard, Spring Hard |
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Form |
Sheet, Plate, Strip, Flats, Clad Plate, Coils, Foils, Plain Sheet, Flat Shim, Flat Sheet, Shim Sheet, Rolling Sheet, Rolling Plate, Rolls, Blank (Circle), soft annealed, descaled, tread plate, sheared, annealed, Checker Plate |
A240 304 Stainless Application scope
System description: A240 304 stainless steel is the most widely used chromium-nickel stainless steel. As a widely used steel, it has good corrosion resistance, heat resistance, low temperature strength and mechanical properties; it has good hot workability such as stamping and bending.
, No heat treatment hardening phenomenon (use temperature -196℃～800℃).
Corrosion resistant in the atmosphere, if it is an industrial atmosphere or heavily polluted areas, it needs to be cleaned in time to avoid corrosion.
It is suitable for food processing, storage and transportation.
Has good processing properties and weldability.
Plate heat exchangers, bellows, household products (category 1, 2 tableware, cabinets, indoor pipelines, water heaters, boilers, bathtubs), auto parts (windshield wipers, mufflers, molded products), medical appliances, building materials, chemicals, food industry
, Agriculture, ship parts, etc.
304 stainless steel is a nationally recognized food grade stainless steel.
A 240 Gr 304 Mechanical Properties
| Grade |
ASME SA240 304 Mechanical Strength |
||||
|
Yield |
Tensile |
Elongation |
Hardness, max |
||
|
ASME SA240 304 |
Min Mpa |
Mpa |
Min % |
Brinell |
Rockwell B |
|
205 |
515 |
40% |
201 |
92 |
|
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A 240 Gr 304 Chemical Composition
| Plate Grade |
The Element Maximum (%) |
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|
C |
Mn |
P |
S |
Si |
Cr |
Ni |
|
|
ASME SA240 304 |
0.08 |
2.00 |
0.045 |
0.030 |
0.75 |
18.0-20.0 |
8.0-10.5 |
|
Mo |
N |
Cu |
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|
|
|
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0.10 |
|
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For a240 304 stainless steel, the Ni element in its composition is very important, which directly determines the corrosion resistance and value of 304 stainless steel.
The most important elements in 304 are Ni and Cr, but they are not limited to these two elements.
Specific requirements are stipulated by product standards.
The common judgment in the industry is that as long as the Ni content is greater than 8% and the Cr content is greater than 18%, it can be considered as 304 stainless steel.
This is why the industry calls this type of stainless steel 18/8 stainless steel.
In fact, the relevant product standards have very clear regulations on 304, and these product standards have some differences for different shapes of stainless steel.
Below are some common product standards and tests.
ASTM A240 Equivalent AISI 304 stainless steel sheet
|
a 240 gr |
JIS G4304 |
ASTM |
UNS |
KS |
EN 10095 |
AS |
CNS |
|
a 240 gr 201 |
SUS201 |
201 |
S20100 |
STS201 |
1.4372 |
201-2 |
201 |
|
a 240 gr 202 |
SUS202 |
202 |
S20200 |
STS202 |
1.4373 |
– |
202 |
|
a 240 gr 301 |
SUS301 |
301 |
S30100 |
STS301 |
1.4319 |
301 |
301 |
|
a 240 gr 304 |
SUS304 |
304 |
S30400 |
STS304 |
1.4301 |
304 |
304 |
|
a 240 gr 304L |
SUS304L |
304L |
S30403 |
STS304L |
1.4306 |
304L |
304L |
|
a 240 gr 304N |
SUS304N1 |
304N |
S30451 |
STS304N1 |
1.4315 |
304N1 |
304N1 |
|
a 240 gr XM21 |
SUS304N2 |
XM21 |
S30452 |
STS304N2 |
– |
304N2 |
304N2 |
|
a 240 gr 304LN |
SUS304LN |
304LN |
S30453 |
STS304LN |
– |
304LN |
304LN |
A240 304 stainless steel plate property requirement.
Tensile strength σb (MPa)≥515-1035
Conditional yield strength σ0.2 (MPa)≥205
Elongation δ5 (%)≥40
Reduction of area ψ (%)≥?
Hardness: ≤201HBW; ≤92HRB; ≤210HV
Density (20℃, g/cm³): 7.93
Melting point (℃): 1398~1454
Specific heat capacity (0~100℃, KJ·kg-1K-1): 0.50
ASTM / AISI/ SAE, DIN, Werkstoff grades or equivalents:
|
ASTM |
BS 970 1991 |
AISI / SAE |
Werkstoff |
|
A240 SS 304L |
304S11 |
304L |
1.4306 |
|
A240 SS 304 |
304S15 |
304 |
1.4301 |
|
A240 SS 316L |
316S11 |
316L |
1.4404 |
|
A240 SS 316L |
316S13 |
316L |
1.4435 |
|
A240 SS 316 |
316S31 |
316 |
1.4401 |
|
A240 SS 316 |
316S33 |
316 |
1.4436 |
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Product standard a240 304 stainless steel:For a240 304 stainless steel, the Ni element in its composition is very important, which directly determines the corrosion resistance of 304 stainless steel and its value.The most important elements in 304 are Ni and Cr, but they are not limited to these two elements. Specific requirements are specified by product standards. It is considered that 304 stainless steel can be considered as long as Ni content is more than 8% and Cr content is more than 18%. This is why the industry will call this kind of stainless steel 18 / 8 stainless steel. In fact, the relevant product standards have very clear provisions for 304, and these product standards have some differences for different shapes of stainless steel. Here are some common product standards and tests.
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hardness of ss304 in hrc
06cr19ni10 and SUS304 are the common marking methods on the market, among which 06cr19ni10 generally refers to national standard production, 304 generally refers to ASTM standard production, and SUS 304 refers to Japanese standard production.
304 is a kind of universal stainless steel, which is widely used to make equipment and parts with good comprehensive performance (corrosion resistance and formability). In order to maintain the inherent corrosion resistance of stainless steel, the steel must contain more than 18% chromium and more than 8% nickel. The stainless steel is produced according to ASTM 304.
No. 2B- A clean, moderately reflective cold-rolled annealed and pickled or descaled finish typically produced by imparting a last mild cold-rolled pass using polished rolls. No. 2D- A easy, non-reflective cold A240-304 stainless steel plates-rolled annealed and pickled or descaled finish. Several colors, thicknesses and opacity options are available, Mill TC EN .1, Third Party Inspection, NDT/DT Test Reports. The 1.4301 and 1.4307 have carbon ranges of 0.07% maximum and 0.030% most, respectively.
A No. 4 end that has been polished to 320-grit is buffed for up to 10 minutes but current grit lines aren’t removed. The remnants of nice polishing traces can typically seen by an observer standing a number of toes from a panel. No.4 Finishis characterized by brief, parallel sprucing strains, which extend uniformly along the size of the coil.
304L stainless steel sheetare a comparatively low value stainless product and utilized in a variety of purposes. 304L Stainless Steel is utilized in all kinds of house and commercial functions, corresponding to Food processing equipment, notably in beer brewing, milk processing, and wine making. 304L grades have glorious low temperature properties and respond nicely to hardening by cold working. Greenline Pipe and Fitting is catering all the rising demands of the shoppers for SS 304 Sheet. We are thought of because the distinguished manufacturer and supplier of the superior high quality of SS 304 Plate in addition to a sheet.
ss 304 2b
For stainless-steel sections that are welded heavily, publish-weld annealing may be essential to offer most corrosive resistance. SS 304L Foil is a really skinny sheet of Stainless Steel that has been hammered or rolled flat. SS 304L Foils could be produced from any type of steel, though the most generally found foils are aluminum foil and gold foil. Aluminum foil sometimes has a thickness of .03mm, although any sheet of steel with a thickness of less than 0.2mm is considered a foil. The mechanical properties of grade 304l Stainless Steel sheet are displayed in the following table.
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In order to determine whether a material is 304 stainless steel, it must meet the requirements of each element in the product standard. As long as one does not meet the requirements, it cannot be called 304 stainless steel. Gangsteel produce A240 304 Stainless steel plate, if you have requirement for stainless steel plate, please feel free to contact us by admin@gangsteel.com