304 stainless steel plate

Gangsteel produce ASTM A240 304 Stainless steel , S30400, A240 Type 304 Stainless steel cutting parts by water cutting, 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.

The SS 304L is the low carbon model of the stainless steel grade 304 which is there with utilizing within the excessive-temperature environment. This is the way in which that the sheet and plate are developed with the help of the alloying metal grades. Also stress relieving between 1100 to 1500°F (593 to 816°C) may trigger some slight embrittlement of those varieties. This supplies resistance to intergranular assault with any in the as-welded situation or with brief durations of publicity in the 800 to 1500°F (427 to 826°C) temperature vary. Where vessels require stress-relieving treatment, quick therapies falling inside these limits can be employed without affecting the normal excellent corrosion resistance of the metal.

316l stainless steel sheet

Prolonged heating in the temperature range of chromium carbide may have an effect on alloys 321 and 347 in harsh corrosive media. Mainly utilized in excessive temperature applications, excessive temperature purposes require strong sensitization of materials to prevent intergranular corrosion at lower temperatures. ASTM A240 Grade 316 Stainless Steel is the standard molybdenum-bearing grade, second in significance to 304 amongst the austenitic stainless . The molybdenum gives 316 higher general corrosion resistant properties than Grade 304, notably greater resistance to pitting and crevice corrosion in chloride environments.

  • Both grades are austenitic stainless steel which is likely one of the most generally used and versatile kind of steel.
  • This specification covers chemical composition and mechanical properties for varied grades of ferritic, austenitic, martensitic, duplex, super duplex and high moly stainless-steel alloys.
  • ASTM A240 Grade 304 Sheet is austenitic chrome steel stainless sheet and comes in many sizes, thickness and finishes.
  • As 304/304L stainless-steel plates & sheets have glorious corrosion resistance, 316/316L plates have greater nickel content than 304 and 304L SS sheets giving them even higher corrosion resistance especially in marine applications.
  • ASTM A240 specification covers chrome steel plates, sheets and strips for strain vessels and general purposes.

Another common use for 316 and 316L stainless steel plate is within the production and use of pressure vessels, tanks, warmth exchangers, piping methods, flanges, fittings valves and pumps. Additional areas where 316 and 316L chrome steel plate is commonly utilized is in the manufacturing of lab tools and in chemical processing and storage. 316 and 316L stainless steel plate can also be found in air pollution management tools and mining instruments similar to screens. 316 and 316L stainless-steel plate can be frequently used in coastal architecture, costal balustrading and in boat fittings. 316 and 316L stainless steel plate can also be made into nuts, bolts, springs, screws, and tubing.

In such media, the Alloy 316L and 317L grades are most popular for the welded situation since low carbon levels enhance resistance to intergranular corrosion. Stainless steel plate inlcudes plates of chrome steel and acid-resistant steel, it has kind of varieties as plates, coils and sheets, widespread use grades are 304/304L and 316/316L, 321 and and so forth. It is the popular steel to be used in marine environments due to its larger resistance to pitting corrosion than different grades of metal. The fact that it’s negligibly responsive to magnetic fields signifies that it may be utilized in applications the place a non-magnetic metal is required. In addition to molybdenum, 316 also contains numerous other elements in various concentrations.

A240 304 vs 316 stainless steel hardness plates

astm a312 tp304 specification

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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Our water jet chopping capabilities for 304 stainless-steel plates are as much as 6” x a hundred and twenty x 144. Both Alloys 316 and 317L are vulnerable to precipitation of chromium carbides in grain boundaries when uncovered to temperatures in the 800 to 1500°F (427 to 816°C) vary.

Annealing or stress relieving heat treatments may be effective in lowering stresses, thereby decreasing sensitivity to halide SCC. Although the low carbon “L” grades supply no advantage as regards SCC resistance, they are better choices for service in the stress-relieved condition in environments which could trigger intergranular corrosion. Both Alloys 316 and 317L are prone to precipitation of chromium carbides in grain boundaries when exposed to temperatures within the 800 to 1500°F (427 to 816°C) range. Such “sensitized” steels are topic to intergranular corrosion when exposed to aggressive environments. Heavier cross sections over 7/16 inch (11.1 mm) usually require annealing even when Alloy 317L is used. Alloy 304 stainless-steel is taken into account to withstand pitting and crevice corrosion in waters containing up to about 100 ppm chloride. The Mo-bearing Alloy 316 and Alloy 317L on the other hand will deal with waters with up to about 2000 and 5000 ppm chloride, respectively.

A240 304L Stainless steel plates

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, etc.

Hardness

Half Hard, Soft, Hard, Quarter Hard, Spring Hard

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 : 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 .
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

Yield

Tensile

Elongation

Hardness, max

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 (%)

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

 

 

 

 

 

0.10

 

 

 

 

 

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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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.

ss 304 and ss 316

At temperatures as excessive as 120°F (38°C), both varieties have excellent resistance to larger concentrations. Service checks are often desirable as operating circumstances and acid contaminants may significantly affect corrosion rate. Where condensation of sulfur-bearing gases occurs, these alloys are far more resistant than different forms of stainless steels.

In such functions, however, the acid concentration has a marked influence on the speed of attack and ought to be carefully determined A240-304 stainless steel plates. The chrome steel sheet has the power to face up to common corrosion much like the unstable nichrome 304.

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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

A240 304 vs 316 stainless steel hardness plates
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