Aanuraj Fasteners Private Limited
Aanuraj Fasteners Private Limited
Vasai, Palghar, Maharashtra
GST No. 27AARCA3096L1Z0
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AISI 321 Stud Bolts Nuts Washers

AISI 321 Stud Bolts Nuts Washers:

AISI 321 is a stabilized austenitic stainless steel alloy containing titanium, offering excellent resistance to intergranular corrosion and high-temperature oxidation.

It is particularly suitable for applications in environments where sensitization and carbide precipitation are concerns, such as in the presence of chloride solutions and elevated temperatures.

- **Chemical Composition**:  - Chromium (Cr): 17.0-19.0% 
- Nickel (Ni): 9.0-12.0% 
- Titanium (Ti): 5x(C+N)-0.70% 
- Carbon (C): 0.08% max 
- Manganese (Mn): 2.0% max 
- Silicon (Si): 0.75% max 
- Phosphorus (P): 0.045% max 
- Sulfur (S): 0.030% max


- **Mechanical Properties**:  - Tensile Strength: ≥515 MPa 
- Yield Strength (0.2% Offset): ≥205 MPa 
- Elongation (% in 2 inches): ≥40% 
- Hardness (Brinell): ≤217 HB

- **Why Use AISI 321 Studs and Bolts**

1. **Intergranular Corrosion Resistance**: AISI 321 studs and bolts exhibit excellent resistance to intergranular corrosion due to their titanium stabilization, making them suitable for applications in chemical processing, aerospace, and automotive industries.

  2. **High-Temperature Performance**: With its superior oxidation resistance at elevated temperatures, AISI 321 provides reliable performance in applications such as exhaust systems, furnace components, and heat exchangers.

  3. **Sensitization Prevention**: The titanium content in AISI 321 helps prevent sensitization and carbide precipitation, ensuring long-term durability and reliability in corrosive environments.

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Stainless Steel 321 Bolts

Stainless Steel 321 Bolts
  • Stainless Steel 321 Bolts
  • Stainless Steel 321 Bolts
  • Stainless Steel 321 Bolts
  • Stainless Steel 321 Bolts
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Approx. Price: Rs 100 / NumberGet Latest Price
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Product Details:

Minimum Order Quantity500 Number
Material GradeAISI 321
Size12mm- 150mm & 1/2" to 6" dia
Country of OriginMade in India
Materials GradeStainless Steel 321

Alloy 321 (UNS S32100) is stabilized stainless steel plate which offers as its main advantage an excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation range from 800 to 1500°F (427 to 816°C). Alloy 321 stainless steel plate is stabilized against chromium carbide formation by the addition of titanium.

Corrosion Resistance
Alloy 321 stainless steel plate exhibits good general corrosion resistance that is comparable to 304. It was developed for use in the chromium carbide precipitation range of 1800 – 1500°F (427 – 816°C) where un-stabilized alloys such as 304 are subject to intergranular attack.

The alloy can be used in most diluted organic acids at moderate temperatures and in pure phosphoric acid at lower temperatures and up to 10% diluted solutions at elevated temperatures. Alloy 321 resists polythionic acid stress corrosion cracking in hydrocarbon service. It can also be utilized in chloride or fluoride free caustic solutions at moderate temperatures.

Alloy 321 stainless steel plate does not perform well in chloride solutions, even in small concentrations, or in sulfuric acid service.

Fabrication Data
Alloy 321 stainless steel plate can be easily welded and processed by standard shop fabrication practices.

Hot forming
Working temperatures of 2100 – 2300°F (1149 – 1260°C) are recommended for forging, upsetting and other hot working processes. Do not work this alloy at temperatures below 1700°F (927°C). Material must be water quenched or fully annealed after working to re-attain maximum corrosion resistance.

Cold forming
The alloy is quite ductile and forms easily.

Welding
Alloy 321 stainless steel plate can be readily welded by most standard processes. A post weld heat treatment is not necessary.

Machining
The cold work hardening rate of 321 stainless steel plate makes it less machinable than 410 stainless steel, but similar to 304. The table below provides relevant machining data.

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  • Item Code: SS321B
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Stainless Steel 321 Washer

Stainless Steel 321 Washer
  • Stainless Steel 321 Washer
  • Stainless Steel 321 Washer
  • Stainless Steel 321 Washer
  • Stainless Steel 321 Washer
  • Stainless Steel 321 Washer
  • Stainless Steel 321 Washer
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Approx. Price: Rs 1,350 / KgGet Latest Price
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Product Details:

Minimum Order Quantity30 Kg
Inner Diameter12 mm
Size12mm- 150mm & 1/2" to 6" dia
Material GradePOLISHED
MaterialAISI 321
ShapeRound
Packaging TypeCarton
Usage/ApplicationOil & Gas Industry
Country of OriginMade in India
TypePlain Round Washers
DimensionsDIN 125

Aanuraj Fasteners Pvt Ltd manufactures Alloy 321 (UNS S32100) is Hex Bolts Nuts  which offers as its main advantage an excellent resistance to corrosion.  

Alloy 321 stainless steel plate exhibits good general corrosion resistance that is comparable to 304. It was developed for use in the chromium carbide precipitation. 

SS 321 Hex Bolts Nuts & Washers can be used in most diluted organic acids,  pure phosphoric acid at lower temperatures. Alloy 321 resists  acid stress corrosion cracking in hydrocarbon service. 

Alloy 321 stainless steel threaded fasteners  does not perform well in chloride solutions, even in small concentrations, or in sulfuric acid service.

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  • Item Code: SS321W
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Ss 321 Hex Nut

Ss 321 Hex Nut
  • Ss 321 Hex Nut
  • Ss 321 Hex Nut
  • Ss 321 Hex Nut
  • Ss 321 Hex Nut
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Approx. Price: Rs 100 / NumberGet Latest Price
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Product Details:

Minimum Order Quantity200 Number
Nominal Nut Diameter16 mm
Size12mm- 150mm & 1/2" to 6" dia
Grade321
Country of OriginMade in India
Materials GradeSS 321

Alloy 321 (UNS S32100) is stabilized stainless steel plate which offers as its main advantage an excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation range from 800 to 1500°F (427 to 816°C). Alloy 321 stainless steel plate is stabilized against chromium carbide formation by the addition of titanium.

Corrosion Resistance
Alloy 321 stainless steel plate exhibits good general corrosion resistance that is comparable to 304. It was developed for use in the chromium carbide precipitation range of 1800 – 1500°F (427 – 816°C) where un-stabilized alloys such as 304 are subject to intergranular attack.

The alloy can be used in most diluted organic acids at moderate temperatures and in pure phosphoric acid at lower temperatures and up to 10% diluted solutions at elevated temperatures. Alloy 321 resists polythionic acid stress corrosion cracking in hydrocarbon service. It can also be utilized in chloride or fluoride free caustic solutions at moderate temperatures.

Alloy 321 stainless steel plate does not perform well in chloride solutions, even in small concentrations, or in sulfuric acid service.

Fabrication Data
Alloy 321 stainless steel plate can be easily welded and processed by standard shop fabrication practices.

Hot forming
Working temperatures of 2100 – 2300°F (1149 – 1260°C) are recommended for forging, upsetting and other hot working processes. Do not work this alloy at temperatures below 1700°F (927°C). Material must be water quenched or fully annealed after working to re-attain maximum corrosion resistance.

Cold forming
The alloy is quite ductile and forms easily.

Welding
Alloy 321 stainless steel plate can be readily welded by most standard processes. A post weld heat treatment is not necessary.

Machining
The cold work hardening rate of 321 stainless steel plate makes it less machinable than 410 stainless steel, but similar to 304. The table below provides relevant machining data.

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Additional Information:

  • Item Code: SS321N
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Ss 321 Threaded Stud

Ss 321 Threaded Stud
  • Ss 321 Threaded Stud
  • Ss 321 Threaded Stud
  • Ss 321 Threaded Stud
  • Ss 321 Threaded Stud
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Approx. Price: Rs 100 / NumberGet Latest Price
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Product Details:

Size12mm- 150mm & 1/2" to 6" dia
Surface TreatmentPolished
Fully Threaded2 METRE LONG
Country of OriginMade in India
Materials SpecificationStainless Steel 321

Alloy 321 (UNS S32100) is stabilized stainless steel plate which offers as its main advantage an excellent resistance to intergranular corrosion following exposure to temperatures in the chromium carbide precipitation range from 800 to 1500°F (427 to 816°C). Alloy 321 stainless steel plate is stabilized against chromium carbide formation by the addition of titanium.

Corrosion Resistance
Alloy 321 stainless steel plate exhibits good general corrosion resistance that is comparable to 304. It was developed for use in the chromium carbide precipitation range of 1800 – 1500°F (427 – 816°C) where un-stabilized alloys such as 304 are subject to intergranular attack.

The alloy can be used in most diluted organic acids at moderate temperatures and in pure phosphoric acid at lower temperatures and up to 10% diluted solutions at elevated temperatures. Alloy 321 resists polythionic acid stress corrosion cracking in hydrocarbon service. It can also be utilized in chloride or fluoride free caustic solutions at moderate temperatures.

Alloy 321 stainless steel plate does not perform well in chloride solutions, even in small concentrations, or in sulfuric acid service.

Fabrication Data
Alloy 321 stainless steel plate can be easily welded and processed by standard shop fabrication practices.

Hot forming
Working temperatures of 2100 – 2300°F (1149 – 1260°C) are recommended for forging, upsetting and other hot working processes. Do not work this alloy at temperatures below 1700°F (927°C). Material must be water quenched or fully annealed after working to re-attain maximum corrosion resistance.

Cold forming
The alloy is quite ductile and forms easily.

Welding
Alloy 321 stainless steel plate can be readily welded by most standard processes. A post weld heat treatment is not necessary.

Machining
The cold work hardening rate of 321 stainless steel plate makes it less machinable than 410 stainless steel, but similar to 304. The table below provides relevant machining data.

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Tushar Desai (CEO)
Aanuraj Fasteners Private Limited
K.N.Dhumal Nagar, Gala No.G6a/10, S.No.46, Sagar Industrial Estate No11, Vasai East, Sagar, Industrial Estates, Vasai Virar
Vasai - 401208, Palghar, Maharashtra, India
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