Stainless Steel 321 Blind Flange Manufacturers in India: Sachiya Steel International Private Limited

When it comes to finding a reliable manufacturer of stainless steel 321 blind flanges in India, Sachiya Steel International Private Limited stands out as the leading choice. With a reputation for quality, precision, and customer satisfaction, we specialize in providing high-quality stainless steel 321 blind flanges that meet the most stringent industry standards.

Why Choose Stainless Steel 321 Blind Flanges?

Stainless steel 321 blind flanges are highly regarded in various industries for their excellent corrosion resistance, high-temperature stability, and superior durability. Unlike other stainless steel grades, 321 stainless steel contains titanium, which makes it highly resistant to intergranular corrosion after exposure to high temperatures. This makes it an ideal material for applications that involve elevated temperatures, such as in chemical processing, oil and gas, and power generation.

Advantages of Stainless Steel 321 Blind Flanges

1. Corrosion Resistance: Stainless steel 321 is known for its exceptional resistance to various forms of corrosion, including pitting and crevice corrosion. This makes it suitable for use in environments where it may be exposed to corrosive elements.
2. High-Temperature Strength: The addition of titanium gives stainless steel 321 superior strength at high temperatures. It can withstand temperatures up to 800°C (1472°F), making it an ideal choice for high-temperature applications.
3. Durability and Longevity: Stainless steel 321 blind flanges are highly durable and can withstand harsh working conditions, reducing the need for frequent replacements and maintenance.
4. Versatility: These flanges are used across various industries, including petrochemical, oil and gas, chemical processing, and more. Their versatility and ability to maintain structural integrity under challenging conditions make them an essential component in many industrial applications.

Specifications of Stainless Steel 321 Blind Flanges

Specifications	Details
Material	Stainless Steel 321 (SS 321)
Standard	ASTM A182 / ASME SA182
Flange Type	Blind Flange
Size Range	1/2″ NB to 48″ NB
Pressure Rating	Class 150 to Class 2500, PN6 to PN64
Dimensions	ANSI B16.5, ANSI B16.47 Series A & B, etc.
Surface Finish	Smooth, Serrated, RTJ
Face Type	Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)

Chemical Composition of Stainless Steel 321

Element	Composition (%)
Carbon (C)	0.08 max
Manganese (Mn)	2.00 max
Silicon (Si)	1.00 max
Phosphorus (P)	0.045 max
Sulfur (S)	0.030 max
Chromium (Cr)	17.0 – 19.0
Nickel (Ni)	9.0 – 12.0
Titanium (Ti)	5 x (C+N) min, 0.70 max
Iron (Fe)	Balance

Mechanical Properties of Stainless Steel 321

Property	Value
Tensile Strength, Ultimate	515 MPa (min)
Yield Strength, 0.2% Offset	205 MPa (min)
Elongation (in 50mm)	40% (min)
Hardness, Brinell (HB)	217 (max)
Hardness, Rockwell B (HRB)	95 (max)

Price List of Stainless Steel 321 Blind Flanges

Size (inches)	Class 150 (INR per piece)	Class 300 (INR per piece)	Class 600 (INR per piece)	Class 900 (INR per piece)	Class 1500 (INR per piece)	Class 2500 (INR per piece)
1/2″	250	350	450	650	950	1200
1″	350	450	650	850	1250	1500
2″	500	700	950	1300	1850	2300
4″	950	1250	1600	2200	3000	3750
6″	1450	1850	2350	3200	4200	5250
8″	1950	2500	3250	4500	5900	7250

Note: Prices are indicative and may vary based on quantity and specifications. Please contact us for the latest pricing.

Dimension Chart for Stainless Steel 321 Blind Flanges

Nominal Size (inches)	Diameter of Flange (mm)	Thickness (mm)	Number of Bolt Holes	Diameter of Bolt Holes (mm)
1/2″	90	12.7	4	15
1″	125	14.3	4	18
2″	150	15.9	4	18
4″	230	19.1	8	22
6″	280	22.2	8	22
8″	345	23.9	8	22
10″	405	25.4	12	26

Countries We Supply Stainless Steel 321 Blind Flanges

At Sachiya Steel International Private Limited, we supply stainless steel 321 blind flanges to a wide range of countries across the globe. Our key markets include:

• United States
• Canada
• United Kingdom
• Germany
• France
• Italy
• Spain
• Australia
• New Zealand
• United Arab Emirates
• Saudi Arabia
• Qatar
• Kuwait
• South Africa
• Brazil
• Argentina
• Mexico
• Singapore
• Malaysia
• Japan
• South Korea

Conclusion

When it comes to choosing the right stainless steel 321 blind flange manufacturer in India, Sachiya Steel International Private Limited is the name you can trust. With our commitment to quality, extensive experience, and customer-centric approach, we have established ourselves as a leader in the market. Contact us today to learn more about our products and how we can meet your specific needs.

For more information, visit our website or contact us directly to speak with our experts. Sachiya Steel International Private Limited is your reliable partner for all stainless steel 321 blind flange needs in India!