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Stainless Steel 321 Sheets

Pioneers in the industry, we offer stainless steel 321 grade sheets, stainless steel 321 welded sheets, uns 32100 sheets and stainless steel 321 en 1.4301 sheets from India.

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We Aashish Steels are offering a wide range of Stainless Steel Sheets to the customers at highly competitive prices. These products are manufactured using high-grade stainless steel, at our vendors' end. Besides, we aim at delivering the ordered products at the clients' end within the stipulated time frame. Following are the specifications of these products:

 

  • 1 mm to 200 mm THK in 1000 mm to 3000 mm widthx2500 mm/5000 mm/10000 mm/coil
  • ASTM/ASME SA 240, 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316H, 316L, 316 TI, 317, 317L, 321, 321H, 347, 347 H, 409, 410, 410S and 430
  • Stainless Steel: ASTM/ASME SA 240 GR TP 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316 LN, 317, 317L, 321, 321H, 347, 347 H and 904L
  • ASTMASME SA 358 CL 1 & CL 3 GR 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316H, 321, 321H and 347.
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Grades 321 and 347 are the basic austenitic 18/8 steel (Grade 304) stabilised by Titanium (321) or Niobium (347) additions. These grades are used because they are not sensitive to intergranular corrosion after heating within the carbide precipitation range of 425-850°C. Grade 321 is the grade of choice for applications in the temperature range of up to about 900°C, combining high strength, resistance to scaling and phase stability with resistance to subsequent aqueous corrosion.

Grade 321H is a modification of 321 with a higher carbon content, to provide improved high temperature strength.

A limitation with 321 is that titanium does not transfer well across a high temperature arc, so is not recommended as a welding consumable. In this case grade 347 is preferred - the niobium performs the same carbide stabilisation task but can be transferred across a welding arc. Grade 347 is therefore the standard consumable for welding 321. Grade 347 is only occasionally used as parent plate material.

Like other austenitic grades, 321 and 347 have excellent forming and welding characteristics, are readily brake or roll formed and have outstanding welding characteristics. Post-weld annealing is not required. They also have excellent toughness, even down to cryogenic temperatures. Grade 321 does not polish well, so is not recommended for decorative applications.

Grade 304L is more readily available in most product forms, and so is generally used in preference to 321 if the requirement is simply for resistance to intergranular corrosion after welding. However 304L has lower hot strength than 321 and so is not the best choice if the requirement is resistance to an operating environment over about 500°C.

Composition

Typical compositional ranges for grade 321 stainless steels are given in table 1.

Table 1. Composition ranges for 321 grade stainless steel

Grade

C

Mn

Si

P

 

Cr

Mo

Ni

N

Other

321

min.

max

-

0.08

2.00

0.75

0.045

0.030

17.0

19.0

-

9.0

12.0

0.10

Ti=5(C+N)

0.

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Type 321 is a standard austenitic 18/8 chromium nickel alloy with the addition of Titanium making it an excellent choice in elevated temperature environments. 

The titanium stabilizes the material removing its susceptibility to the effects of intergranular corrosion. 321 is therefore the stainless steel material of choice for applications in working environments up to 900° C. 

A drawback of Type 321 is that the titanium does not transfer well across a high temperature arc, so it is not recommended as a welding consumable. 

In such instances, 347 is the preferred choice as the Niobium performs the same function as Titanium but can be still transferred across a high temperature arc. Type 347 is therefore the consumable of choice for welding Grade 321. 

The steel has excellent forming and welding qualities and excellent toughness even at cryogenic temperatures. If you are looking for a stainless steel to provide resistance to intergranular corrosion, 304L is the normal choice as it is a more commonly used and supplied steel. 

However, 321 is a much better option in operating temperature environments in excess of 500° C and therefore has its own merits. 

Note that Type 321 does not polish well so it is not practical to use this material as cosmetic architectural feature.

 

 

Chemical Composition

UNS No

Grade

C

Si

Mn

P

S

Cr

Mo

Ni

N

Other

S32100

321

0.08

0.75

2.00

0.045

0.030

17.00/19.00

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Thincknness

Form 0.1mm to 120mm

Widthness

1000mm,1219mm(4feet),1250mm,1500mm,1524mm(5feet),1800mm,2200mm 

or we can also help the size as you require.

Length

2000mm,2440mm(8feet),2500mm,3000mm,3048mm(10feet),5800mm, 6000mm 

or we can make the length as you require.

Finish

NO.1, NO.2D, NO.2B, BA,NO.3, NO.4,NO.240,NO.400,Hairline(HL),NO.8,Brushed

PVD colors, etched, embossed, sand blasted, vibration,

anti-fingerprint.and so on.

Standard

ASME, ASTM, EN ,BS,GB,DIN, JIS etc

Material

201,202,304,304L, 309S 316Ti,317L, 316,316L,321,310S,

347H,2Cr13,3Cr13 409,409L,410,420,430 etc

Application range

Stainless steel sheet applies to construction field, 

ships building industry, petroleum & chemical industries,

war and electricity industries,food processing and 

medical industry, boiler heat exchanger,machinery 

andhardware fields. Stainless steel sheet can be made 

accordingto the customers requirements.

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Aashish Steel

P. M. Jain (Manager)
No. 11, Chandra Bhavan 1st Parsiwada Lane
Mumbai - 400004
Maharashtra, India
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