aisi 304 astm a240
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.
Type 304 is not going to experience sensitization or intergranular corrosion, and due to this fact not require preventative secondary operations. Because of its material properties, stainless-steel is the steel of choice in meals processing environments. All steels have the same primary iron and carbon composition, but stainless-steel also accommodates a wholesome dose of chromium—the alloy that provides stainless steel its famous corrosion resistance.
However, the nearer grade 304 stainless-steel reaches its melting level, the extra tensile energy it loses. Grade 316 is a well-liked alloy of stainless steel with a melting range of 2,500 °F – 2,550 °F (1,371 °C – 1,399 °C). As an austenitic stainless steel alloy, it has qualities such as high strength, corrosion resistance, and high concentrations of chromium and nickel. The alloy has a tensile strength of 579 MPa and a most use temperature of round 800˚C (1,472˚F). Due to its non-reactive qualities, 316 stainless-steel is also used in the manufacture of medical surgical devices.
The chrome steel alloy resists most oxidizing acids and will stand up to strange rusting although this doesn’t imply that the steel is not going to tarnish over time. The steel needs to be chilly labored to generate higher tensile strength. For stainless steel sections that are welded closely, publish-weld annealing may be needed to provide maximum corrosive resistance. Stainless 316 is more expensive as a result of it provides the next corrosion resistance, particularly in opposition to chlorides and chlorinated options.
aisi 304 ss
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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 |
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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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Similar to 304, Grade 316 chrome steel has excessive amounts of chromium and nickel. 316 also incorporates silicon, manganese, and carbon, with nearly all of the composition being iron. A main distinction between 304 and 316 stainless-steel is the chemical composition, with 316 containing a major amount of molybdenum; typically 2 to 3 % by weight vs only trace quantities present in 304. The larger molybdenum content material ends in grade 316 possessing increased corrosion resistance. Due to the addition of molybdenum, grade 316 chrome steel is extra corrosion resistant than similar alloys, corresponding to 304 stainless-steel. This reduces pitting from chemical environments and permits grade 316 stainless-steel for use in highly acidic and caustic environments that may otherwise eat away on the metal.
- Ideal for a wide variety of home and industrial applications, Alloy 304 exhibits glorious corrosion resistance and has a excessive ease of fabrication, excellent formability.
- It is the usual “18/8 stainless” that’s commonly found in pans and cooking instruments.
- 316 additionally accommodates silicon, manganese, and carbon, with the vast majority of the composition being iron.
- The austenitic stainless steels are also thought-about to be the most weldable of the excessive-alloy steels and can be welded by all fusion and resistance welding processes.
- Alloy 304 is probably the most versatile and broadly used alloy in the chrome steel household.
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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It has the next corrosion resistance than common steel and is extensively used because of the benefit in which it is fashioned into various shapes. Another in style excessive-performing alloy, grade 304 chrome steel is a durable materials when it comes to tensile power, durability, corrosion, and oxidation resistance. The melting level of stainless steel 304 is reached at temperatures ranging between 2,550 °F – 2,650 °F (1399 °C – 1454 °C).
Chloride resistant metals, like grade 16 stainless-steel, are important to use for naval functions or anything involved with chloride. Besides the tough setting of the sea and marine applications, chlorides, such as salt, can eat away at even the hardest metals. Salt will even compromise the protecting oxide layer of grade 304 stainless steel, leading to rust. For marine purposes, or processes involving chlorides, grade 316 stainless steel is right. The most basic difference between grade 304 and grade 316 stainless steels is that 316 tends to have more nickel and a bit of molybdenum in the mix. The basic mechanical properties of the two metals are principally comparable. 304 chrome steel is the most common type of stainless-steel used around the world, because of its excellent corrosion resistance and value.
304 series stainless steel
Type 304L is the low carbon version of 304, doesn’t require publish-weld annealing and so is extensively utilized in heavy gauge parts . 304 stainless-steel is the commonest type of stainless steel used around the world due to glorious corrosion resistance and value.304 can stand up to corrosion from most oxidizing acids. That sturdiness makes 304 straightforward to sanitize, and therefore best A240-304 stainless steel plates for kitchen and meals purposes. For out of doors furnishings like rails and bollards, stainless-steel is an ideal corrosion-resistant material, but it’s going to solely face up to long-term publicity if the grade is suitable for its environment. 304 is a cheap and practical alternative for many environments, however it doesn’t have the chloride resistance of 316.
astm a240 304l
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.
Type 304/304L is non-magnetic in the annealed condition however might turn into slightly magnetic as a result of cold working. The metal accommodates both chromium (between 18% and 20%) and nickel (between eight% and 10.5%) metals as the primary non-iron constituents. It is much less electrically and thermally conductive than carbon metal and is actually non-magnetic.
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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