304b stainless steel
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.
316 grade stainless steel
This reduces the ferrite content material of the metal and has found to be essential for some chemical processes. Grade 304/304L resists atmospheric corrosion, in addition to, reasonably oxidizing and decreasing environments. It has excellent resistance to intergranular corrosion in the as-welded condition. ASTM A /304L Dual Grade has glorious strength and toughness at cryogenic temperatures. Those completed, after cold rolling, by heat remedy, pickling or different equal remedy and lastly by chilly rolling to given acceptable luster.
ss 304 rod
Food and beverage, sanitary, cryogenic, and strain-containing functions are common examples. Since the fabric is value efficient and has power and corrosion resistance properties, that is essentially the most extensively used form of steel on the earth. The UNS S30403 Stainless Steel Coil has good power and subsequently is used in mechanical applications to soak up shock. The low carbon content makes it less weak to intergranular corrosion cracking.
The Alloys 304, 304L, and 304H austenitic stainless steels present useful resistance to corrosion on a variety of moderately oxidizing to moderately lowering environments. The alloys are used broadly in tools and utensils for processing and handling of meals, beverages, and dairy merchandise. Heat exchangers, piping, tanks, and other process equipment involved with fresh water also utilize these alloys. We have a fair value coverage for all our prospects with finest delivery schedule. Sheet Coils are flat products wound into rolls and having a rectangular cross-part, the width of which is way larger than the thickness. Hot Rolled Sheet Coil is produced from semifinished products , which are reduced to sure thicknesses by rolling and annealing and wound right into a roll.
- All elements in ths graded plates represents a superb combination of corrosion resistance and fabricability.
- Aesteiron Steels is called a one of the largest stockist and supplier of Stainless steel Sheets and Plates we inventory over 800 ton stock in grades like 304/ 304L/ 316/ 316L/ 310/ 321/ 317L and 904L.
- Type 304L can be used in domestic functions specifically in homes close to sea so it helps to withstand corrosion in moisture and salty climate.
Cold-rolled metal Coil is a extra highly completed product and has a smoother surface, greater dimensional accuracy and greater strength. Our products like stainless steel 304L sheets & plates are packaged to make sure that there’s no injury throughout transit. Just in case of exports, customary export packaging is accomplished in picket bins A240-304 stainless steel plates or cases. All stainless steel 304L sheets & plates are marked with Trademark (Company’s LOGO), Grade, Size and Lot No. Marc Steel is a acknowledged dealer and exporter of SS 304L Plates, which are made-up by our specialists in compliance by means of international and national high quality of standards by using soaring issue inputs.
When the passivation movie is broken, the corrosion resistance is lowered. The stainless-steel sheet has the power to resist general corrosion just like the unstable nichrome 304. Prolonged heating in the temperature range of chromium carbide might affect alloys 321 and 347 in harsh corrosive media.
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.
303 304 stainless steel
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Product Type |
A 240 304 Sheet, A 240 304 Plate |
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SS 304 ASTM Standard Specification |
ASTM A240 / ASME SA240 |
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Thickness |
0.1 to 3000 mm Thk |
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Width |
10-2500mm |
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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 |
||||
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Yield |
Tensile |
Elongation |
Hardness, max |
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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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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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Type 304L is a variation of Type 304 and has a lower carbon content which improves weldability and lowers the chance of decreased corrosion resistance across the weld. Type 304L also has a barely lower yield and tensile power than Type 304. The time period ‘corrosion resistant metal’ is used when the alloy has less than the 12% minimum of chromium, for example within the aviation industry. There are totally different grades and floor finishes of chrome steel, depending on the place it is going to be used. Stainless steels have the next resistance to oxidation and corrosion in many natural and man-made environments; nevertheless, you will need to choose the proper kind of stainless-steel for the use. There are over one hundred fifty grades of stainless-steel, of which fifteen are probably the most used.
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.
Such steels are “sensitized” and subject to intergranular corrosion when uncovered to aggressive environments. The carbon content of Alloy 304 may enable sensitization to happen from thermal situations skilled by autogenous welds and warmth-affected zones of welds. For this purpose, the low carbon Alloy 304L is preferred for applications in which the fabric is put into service in the as-welded condition. Low carbon content extends the time necessary to precipitate a dangerous degree of chromium carbides however does not remove the precipitation response for materials held for long occasions within the precipitation temperature range. Exposure of the 18-8 austenitic stainless steels to temperatures in the 800°F to 1500°F (427°C to 816°C) vary could trigger precipitation of chromium carbides in grain boundaries. Such steels are “sensitized” and subject to intergranular corrosion when exposed to aggressive environments. In some circumstances, the low carbon Alloy 304L may show a lower corrosion fee than the higher carbon Alloy 304.
Type 321 SS plates are a good choice for purposes where warmth is an issue. 321 can be utilized in applications as much as 900°C where 304L is generally used up to 500°C. 304 stainless steel plate (&304L) are widespread use austenitic stainless steel, they are a relatively low value stainless (compared to 316/316L stainless). All prime quality products that maintain international levels of production. Our products undergo stringent high quality control measures to make sure reliability. Stainless Steel 304L Coils is essentially non-magnetic and turns right into a tad magnetic when it is being cold functioned.
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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