a276 type 304
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.
ASTM A240 metal plate covers Austenitic Steels, Ferritic steels and Martensitic Steels. publicity of the 18-eight austenitic stainless steels to temperatures in the 800°F to 1500°F (427°C to 816°C) range might trigger precipitation of chromium carbides in grain boundaries.
202 ss steel grade
The Main difference between these two stainless-steel plates is the amount of carbon contained inside every metal. 304 incorporates at most 0.08% carbon whereas 304 L contains at most 0.03% carbon. There is also a slight difference within the nickel ranges in the stainless-steel plate. 304 stainless steel plate can contain A240-304 stainless steel plates as much as 10.5% nickel whereas 304L can include as much as 12% nitrogen. It is important to grasp the mechanical properties of 304 and 304L chrome steel plate, ASTM A240. 304 stainless-steel plate has a minimal tensile power of seventy five ksi and a minimal yield energy at 0.2% of 30 ksi.
aisi 304 and ss 304
In heavy industrial areas, frequent washing is advisable to take away dust deposits which could eventually trigger corrosion and impair the surface look of the stainless steel. The austenitic stainless steels are warmth handled to remove the effects of chilly forming or to dissolve precipitated chromium carbides. The surest warmth treatment to accomplish each requirements is the solution anneal which is performed in the 1850°F to 2050°F range (1010°C to 1121°C). Cooling from the anneal temperature should be at sufficiently excessive rates via °F (816°C – 427°C) to keep away from reprecipitation of chromium carbides. Alloy 309 (23% Cr 13.5% Ni) or nickel-base filler metals are utilized in joining the 18-eight austenitic alloys to carbon steel.
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 exposed to aggressive environments. The carbon content material of Alloy 304 could allow sensitization to occur from thermal conditions skilled by autogenous welds and heat-affected zones of welds. For this reason, the low carbon Alloy 304L is most popular for applications during which the fabric is put into service in the as-welded condition. Low carbon content extends the time essential to precipitate a harmful level of chromium carbides but doesn’t remove the precipitation reaction for materials held for long occasions within the precipitation temperature vary. One of essentially the most versatile and generally used stainless steels available on the market, Grade 304 stainless-steel is probably the most normal used alloy of this type. Essentially, Grade 304 is an austenitic chromium alloy which is also called an “18/eight” stainless as the make-up of the metal is eighteen% chromium and eight% nickel.
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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Grades 304 and 304L stainless-steel plate is dominant within the manufacture of stainless-steel fabrications. 304 chrome steel plate could be braked formed into a wide range of elements for applications within the industrial, architectural, and transportation sectors. Alloy SS 304 is the austenitic grade chrome steel that is used to hold the stress vessels within the elevated temperatures. However, there are different elements which the SS holds like carbon molybdenum and others. The SS 304L is the low carbon version of the chrome steel grade 304 which is there with using in the excessive-temperature surroundings.
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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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ASTM A Sheets is among the most versatile and commonly used stainless-steel grades in the market. This grade is an austenitic chromium alloy and it holds numerous outstanding features. This grade of sheet holds varied options like heat resistance, corrosion resistance, superior finishing, good energy and toughness at cryogenic temperature and plenty of extra. Each alloy represents a superb combination of corrosion resistance and fabricability.
sa 479 gr 304
- Stainless Steel 304 Sheet is made up of an austenitic chrome steel that has 18% chromium and 8% nickel in the composition.
- The materials is strong and has 205MPa minimal yield energy and 515MPa minimal tensile power generally.
- The low carbon model, 304L sheets are excellent for welding functions as they have much less carbide precipitation and less localized corrosion.
- The ASME SA240 Stainless Steel 304 Coil Thickness ranges as much as 200mm and the width and the length ranges extensively relying on the appliance necessities as nicely.
The austenitic stainless steels are considered to be essentially the most weldable of the high-alloy steels and can be welded by all fusion and resistance welding processes. The 18-eight alloys have been used very efficiently in contemporary waters containing low ranges of chloride ion.
The 9 to eleven percent of nickel contained by these 18-8 alloys assists in providing resistance to moderately lowering environments. The more highly decreasing environments such as boiling dilute hydrochloric and sulfuric acids are shown to be too aggressive for these supplies. Yes, it is possible to purchase dual certified stainless steel plate in grades 304 and 304L. Yes, 304 and 304L stainless-steel plate may be polished to a wide variety of finishes.
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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