16 gauge 304 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.
Grade 304H is used for applications requiring elevated temperatures because it retains its power nicely within the 900 – 1500°F range. As a downside, 304H has decreased corrosion resistance in wet conditions at decrease temperatures. The metal incorporates each chromium (between 18% and 20%) and nickel (between 8% and 10.5%) metals as the main non-iron constituents. It is much less electrically and thermally conductive than carbon metal and is basically non-magnetic. It has a higher corrosion resistance than regular steel and is widely used due to the ease in which it’s fashioned into various shapes.
- It is considerably extra resistant to solutions of sulfuric acid, chlorides, bromides, iodides and fatty acids at excessive temperature.
- Stainless steels containing molybdenum are required within the manufacture of sure pharmaceuticals so as to keep away from extreme metallic contamination.
- Type 316 is sturdy, simple-to-fabricate, clean, weld and end.
- Since Type 316 stainless steel alloy contains molybdenum bearing it has a greater resistance to chemical assault than 304.
ss 304 2b
The lower carbon content in 304L minimizes deleterious or harmful carbide precipitation because of welding. 304L can, due to this fact, be used “as welded” in extreme corrosion environments, and it eliminates the necessity A240-304 stainless steel plates for annealing. Type 304 grade chrome steel is also present in sinks, tabletops, espresso pots, fridges, stoves, utensils, and other cooking appliances.
ss 304 and ss 316
The low free chlorine ranges of typical potable water methods won’t have an effect on austenitic stainless steels. However, free chlorine concentrations of as little as 25 ppm can have a detrimental effect on them. The subject of chloride induced corrosion of austenitic stainless steels is very complex and is dependent upon many things similar to focus, temperature, pH, and so forth. Type 304 alloys are all modifications of the 18% chromium, eight% nickel austenitic alloy. Applications for this group of alloys are varied and all possess considerably related characteristics in resistance to oxidation, corrosion, and sturdiness. All present ease of fabrication and cleaning, prevention of product contamination and over a wide range of finishes and appearances. The technical advice and proposals made on this Product Data Sheet should not be relied or acted upon without conducting your individual further investigations, together with corrosion publicity tests the place needed.
Low carbon content material means much less carbide precipitation in the heat-affected zone throughout welding and a decrease susceptibility to intergranular corrosion. 304 chrome steel has glorious resistance to a wide range of atmospheric environments and plenty of corrosive media. It is topic to pitting and crevice corrosion in heat chloride environments and to stress corrosion cracking above about 60 °C. It is considered resistant to pitting corrosion in water with as much as about 400 mg/L chlorides at ambient temperatures, lowering to about 150 mg/L at 60 °C. Addition of small proportion of hydrogen in shielding gas increases the heat switch efficiency, melting and subsequent penetration. Preheating of AISI 4340 materials reduces the chance of solidification cracking and submit-heating helps to enhance the joint mechanical property.
This signifies that this grade steel is dominant in the manufacture of drawn stainless parts corresponding to sinks, hollow-ware and saucepans. For these applications, it’s common to use special “304DDQ” variants. Grade 304 may be readily braked or roll-formed into a variety of elements for purposes within the industrial, architectural, and transportation fields. Post-weld annealing isn’t required when welding thin sections. This grade has slightly decrease mechanical properties than the usual 304 grade, however is still widely used because of its versatility. Like Type 304 stainless steel, it is commonly used in beer-brewing and wine-making, but additionally for purposes past the food trade similar to in chemical containers, mining, and development.
304 stainless steel perforated sheet
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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304 stainless-steel accommodates a higher chromium and decrease carbon content than other variations of type 302. It can be used in an “as welded” condition, whereas 302 should be annealed. AISI 304 is utilized in a variety of family and industrial applications. 304L is a fair decrease carbon model of 304 stainless steel and can be utilized in additional corrosive environments similar to salt water and chemical containers.
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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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Series of experiments were performed to analyze the mechanical properties, residual stress, and diffusible hydrogen content material of the longitudinal weld of the tank. Results of the mechanical properties showed that each the micro-hardness and the tensile strength of the welds are higher than the base metallic. There are greater residual compressive stresses in the weld center and the adjacent-weld zone. After enameling, the longitudinal welds’ peak micro-hardness of coarse grained region reduces by 30.9 HV1, and the common micro-hardness of the HAZ reduces by 5 HV1. The average vertical residual compressive stress distinction of the identical take a look at points reduces from 270.6 MPa to twenty.4 MPa. It proves that enameling can enhance the mechanical property of the longitudinal welds. A hard, brittle steel, chromium has some remarkable properties, but an incapability to react with water isn’t one of them.
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.
Sensitization is the formation of chromium carbides alongside grain boundaries when a stainless-steel is exposed to temperatures within the vary of approx. Type 304 Stainless Steel is probably the most extensively used of the austenitic (chromium/nickel) stainless steels. In the annealed condition it is primarily non-magnetic and becomes barely magnetic with the applying of chilly work. Type 304L Stainless Steel is most popular in welding applications to exclude the formation of chromium carbides during cooling within the heat affected region of the weld. These alloys represent a wonderful mixture of corrosion resistance and fabricability.
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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