304 stainless steel price
1.4301 grade
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.
In the annealed condition it’s essentially non-magnetic and becomes barely magnetic with the appliance of chilly work. Type 304L Stainless Steel is most well-liked in welding applications to exclude the formation of chromium carbides during cooling within the heat affected region of the weld. These alloys represent an excellent mixture of corrosion resistance and fabricability. Federal laws was enacted in 2006 decreasing the permissible exposure limit of workers, including welding-associated personnel, to Cr by an order of magnitude.
304 grades have glorious low temperature properties and respond nicely to hardening by cold working. 304 chrome steel plate grades have good welding traits and publish weld annealing is not usually required to revive efficiency. 304 SS plates have wonderful corrosion resistance in a wide range A240-304 stainless steel plates of different media. Typical specifications for 304 and 304L ss plates are ASTM A-240, ASME SA -240 and A666. Grade 304/304L is probably the most widely used industrial grade of chrome steel supplied into quite a few trade sectors.
- Solidification experiments had been performed utilizing a button melting apparatus at the side of the only sensor differential thermal evaluation (SS DTA™) technique to find out part transformations during solidification.
- Weld mechanical properties and weldability efficiency were comparable in nature to other austenitic Ni-based mostly alloys and stainless steels.
- By using the Ni-Cu based consumable to weld stainless steel, Cr in the welding fume was decreased by two orders of magnitude from typical stainless-steel welding electrodes.
- A new welding consumable, based mostly on the Ni-Cu metallurgical system, was developed to cut back hexavalent Cr (Cr6+) emissions throughout welding of austenitic stainless steels.
Exposure of the 18-eight austenitic stainless steels to temperatures within the 800°F to 1500°F (427° to 816°C) range could cause precipitation of chromium carbides in grain boundaries. Such steels are “sensitized” and subject to intergranular corrosion when uncovered to aggressive environments.
The broad usage of 304/304L chrome steel in food and beverage and pharmaceutical purposes reflects the corrosion resistance qualities of those materials. These industries demand that materials do not release vital portions of contaminants into the product.
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.
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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This ductility trough is probably going related to the stable-state weld cracking phenomenon known as ductility-dip cracking. Strain-to-fracture testing revealed that the ductility-dip cracking threshold strain was approximately 2–3% in weld deposits, indicating a moderate to excessive susceptibility. Weld deposits were considered to have related weldability to other Ni-base and absolutely austenitic stainless-steel alloys based mostly on the present analysis. 304 and 304L stainless-steel plates are part of the austenitic family of chrome steel and they’re one of the most versatile and extensively used kinds of stainless plate. They are a comparatively low cost stainless product and used in quite a lot of purposes.
In extra corrosive environments such as a marine surroundings, or an surroundings where greater chloride and chlorine content material is a factor, the next spec grade similar to 316/316L or a Duplex grade could also be a better possibility. A temperature gradient is produced in the material being welded which ranges from above the melting temperature in the molten pool to ambient temperature at some distance from the weld. The greater the carbon stage of the material being welded, the higher the probability that the welding thermal cycle will result within the chromium carbide precipitation which is detrimental to corrosion resistance.
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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 |
|
Length |
2m, 2.44m, 3m, or as required |
|
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 a240 type 304
From the galvanic collection, the corrosion potential of the Ni-Cu alloy K400 is positioned in the identical potential range as Type 304 and Type 316 stainless steels. In this study, the applicability of the Monel-type fi ller metals for the welding of austenitic stainless steel is examined. Type 304L stainless steel plate was efficiently welded with Monel fi ller wire, leading to high-high quality welds with no cracks. The welds survived lengthy-time period exposure to mildly ag- gressive environments like 0.1 M sodium chloride with no proof of corrosion. However, Cu-wealthy regions within the weld have been the weak spots for corrosion susceptibility.
304 stainless steel pipe supplier
The stainless steel sheet has the flexibility to face up to basic corrosion similar to the unstable nichrome 304. Prolonged heating in the temperature vary of chromium carbide might affect alloys 321 and 347 in harsh corrosive media. Mainly utilized in high temperature applications, high temperature functions require robust sensitization of supplies to stop intergranular corrosion at decrease temperatures. The corrosion resistance of stainless-steel mainly depends on its alloy composition (chromium, nickel, titanium, silicon, aluminum, and so on.) and the internal structure major position is chromium .
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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