aisi 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.

304 stainless sheet

Type 305 is used for functions requiring a low fee of labor hardening throughout extreme chilly forming operations such as deep drawing. Type 304/304L is the fashionable model of “18-eight” stainless steel containing roughly 18% chromium and 8% nickel and is probably the most generally specified stainless-steel used all through the world.

If intergranular corrosion within the warmth affected zone could happen, it is advised that CS 304L be used. The metal incorporates both chromium (between 18% and 20%) and nickel (between 8% and 10.5%) metals as the main non-iron constituents. It is less electrically and thermally conductive than carbon steel and is actually non-magnetic. It has a better corrosion resistance than common metal and is widely used because of the convenience by which it is fashioned into various shapes.

By inspecting the mechanical properties of steels along side microstructure this guide supplies a useful description of the event and behaviour of these supplies – the very basis of their widespread use. An essential reference, both compact and readily complete, for metallurgists and engineers in both business and academia. The guide describes corrosion characteristics in all the main and minor teams of stainless steels, specifically, in austenitic, ferritic, martensitic, duplex, and precipitation hardenable steels.

sa312 tp304 specification

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.
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 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
	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 Maximum (%)
	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.

AISI 304L is the low carbon version of 304 stainless steel, AISI 303 is a free-machining metal, basically a variant of 304, which increases the phosphorus and sulfur content material and improves the machinability. AISI 316 is best A240-304 stainless steel plates than grade 304 in sure properties, corrosion resistance and heat resistance, and so forth. For more data, please check 304 vs 304L chrome steel and 304 vs 316 chrome steel.

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.

perbedaan stainless steel 304 dan 316

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• Because SS 304 contains 18% chromium and eight% nickel , it’s also called 18/8 stainless steel.
• Exposure of the 18-8 austenitic stainless steels to temperatures within the 800°F to 1500°F (427° to 816°C) range may cause precipitation of chromium carbides in grain boundaries.
• AISI 304 stainless steel is the most commonly used materials in stainless steels, and is usually purchased in an annealed or cold labored state.
• © 2016, Editorial Office of Transactions of Materials and Heat Treatment.

Finally, work on the M6C carbide in austenitic stainless steels is critically assessed. It is discovered that its detailed composition isn’t well characterised and that there are no common guidelines apparent about its formation. It is obvious that chromium concentrations in extra of 18 wt-%, mixed with a low carbon concentration, promote the formation of σ part. This has implications significantly for steels containing niobium and titanium, both of which getter carbon. Other compounds reviewed embrace χ and G phases, which kind at high temperatures and during very long aging corresponding to that encountered in service. Hot rolling, annealing and chilly rolling had been carried out for a series of low-nickel Cr-Mn-N austenitic stainless steels with completely different composition.

stainless steel ss 304

However, free chlorine concentrations of as little as 25 ppm can have a detrimental impact on them. The subject of chloride induced corrosion of austenitic stainless steels could be very complex and depends on many things such as concentration, temperature, pH, etc. The technical recommendation and suggestions made in this Product Data Sheet shouldn’t be relied or acted upon with out conducting your own further investigations, including corrosion publicity tests where needed. Austral Wright Metals assumes no liability in reference to the knowledge in this Product Data Sheet.

They characterize an economically important and steadily rising group of steels discovering their way into an rising number of functions. The use of stainless steels is anticipated to continue to grow at a big rate. Existing grades would be the trade’s workhorses and upgraded variations and new alloys may even be seen. New and present welding processes are growing and in particular laser-hybrid welding may be expected to gain ground in the close to future. Type 304, with its chromium-nickel content material and low carbon, is essentially the most versatile and widely used of the austenitic stainless steels.

Pitting current of warmth‐treated steels was generally higher than the untreated counterparts. Heat treatment extended the passivation vary worth of EN‐1.4405 and EN‐1.4539 steels in comparison with these of the untreated steels. The corrosion potential of warmth‐treated steels considerably shifted to electronegative values. The optical image of untreated and heat treated EN‐1.4404 and EN‐1.4539 steels have been typically related while the photographs for EN‐1.4405 considerably distinction each other.

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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