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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.
There are a wide range of supplies to select from with many various specs tied to them. Stainless metal is a popular and affordable selection within the packaging trade, especially for food grade purposes. In this submit, we dissect chrome steel and the completely different grades of each. At first look, the chemical compositions of AISI 304 and AISI 316 don’t differ a lot. While grade 304 stainless-steel solely has trace quantities of it, AISI 316 has significantly extra. Grade 316 additionally contains the next proportion of nickel than 304 stainless-steel (10% vs. solely 8%) which results in a lot improved corrosion resistance.
Type 316 has extra nickel content material than sort 304 and type 304 has extra chromium than sort 316. The general make up of type 304 is 18% chromium and eight% nickel, whereas type 316’s general make up is 16% chromium, 10% nickel and a couple of% molybdenum. 316 grade is the second-most typical form of stainless steel. It has nearly the identical bodily and mechanical properties as 304 stainless-steel, and accommodates a similar materials make-up.
304 stainless steel bar
For marine functions, or processes involving chlorides, grade 316 chrome steel is good. Another popular excessive-performing alloy, grade 304 chrome steel is a durable materials when it comes to tensile strength, durability, corrosion, and oxidation resistance. The melting point of stainless steel 304 is reached at temperatures ranging between 2,550 °F – 2,650 °F (1399 °C – 1454 °C). However, the closer grade 304 stainless-steel reaches its melting level, the extra tensile energy it loses. is the presence of molybdenum in 316; sort 304 by no means incorporates it. That component is added to help it resist corrosion by chlorides such as those present in seawater or de-icing salts. It rivals the corrosion resistance of titanium and high nickel alloys.
These two grades of stainless steel are comparable in look, chemical makeup and characteristics. Both are additionally durable and have excellent rust and corrosion resistance. Type 304 is probably the most versatile and widely used chrome steel on the earth because of its resistance to corrosion. Type 304 is also cheaper as in comparison with sort 316, which is one more reason it is extra extensively used. 304 chrome steel is the most typical form of stainless-steel used around the globe, due to its glorious corrosion resistance and worth. It incorporates between 16 and 24 % chromium and up to 35 percent nickel, as well as small quantities of carbon and manganese.
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.
a2 aisi 304
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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 |
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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 |
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|
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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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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The addition of molybdenum and a barely higher nickel content material make Type 316 Stainless Steel appropriate for architectural purposes in severe settings. It is also called marine grade stainless steel due to its elevated resistance to chloride corrosion in comparison with type 304. Type 316 is often utilized in extremely acidic environments, needing the additional A240-304 stainless steel plates safety from chemical corrodents. Grade 316 stainless-steel is the usual molybdenum-bearing grade, second in importance to 304 amongst the austenitic stainless steels. Different grades and surface finishes of stainless-steel are made to swimsuit completely different purposes and environments. The most common forms of chrome steel are alloys 304 and 316.
The key distinction is that 316 chrome steel incorporates about 2 to three percent molybdenum. The addition increases corrosion resistance, significantly towards chlorides and other industrial solvents. Since Type 316 stainless steel alloy incorporates molybdenum bearing it has a larger resistance to chemical assault than 304. Type 316 is sturdy, straightforward-to-fabricate, clean, weld and finish. It is considerably extra immune to solutions of sulfuric acid, chlorides, bromides, iodides and fatty acids at high temperature.
- They can’t be hardened by heat remedy, however their mechanical properties could also be improved through various wrought processes such as chilly heading and roll threading.
- 304, 305 and 316 stainless steels are nickel/chromium Austenitic grades of chrome steel and are inherently non-magnetic.
- Similar to 304, Grade 316 stainless steel has excessive amounts of chromium and nickel.
- 304 and 305 provide greater than enough corrosion protection in mostly encountered applications.
Both 304 and 316 stainless steels (in addition to other 300-sequence grades) use nickel to keep up an austenitic composition at decrease temperatures. The increased nickel content material and the inclusion of molybdenum makes grade 316 stainless steel a bit costlier than grade 304 per ounce of material. But where grade 316 stainless proves superior is its increased corrosion resistance—significantly towards chlorides and chlorinated solutions. This makes grade 316 stainless significantly desirable for purposes the place exposure to salt or different highly effective corrosives is a matter. Type 316 is the second most typical grade however with the addition of 2-3% molybdenum.
The largest difference between sort 304 and 316 is molybdenum. It is a chemical element used for the strengthening and hardening of steel. The main function of molybdenum in sort 316 stainless steel is to withstand corrosion from chlorides.
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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