EN 1092-2 PN16 Class 300 Flange Manufacturers In India, Check Maximum Pressure Of Class 300 Stainless Steel Flanges.
The Class 300 flanges are a popular component of the piping system. It can handle greater pressure than the Class 150 flange as the former consists of more metal. We specialize in ASME B16.5 Class 300 Flange manufacturing which has dimensions from NPS ½ to NPS 16. They consist of high-quality materials and have different dimensions and specifications. The Class 300 Stainless Steel Flange is widely used in various industries such as chemical and many others. We manufacture 300# Series A / Series B Flange, which are made of high-quality metals and have a great corrosion-resistant capacity. The Stainless Steel Class 300 Flange has the right dimensions of the flange, i.e., from NPS ½ to NPS24, and we manufacture them according to the client’s requirements. RPF Manufacturer Of ASME B16.5 Class 300 forged flanges In India.
We specialize in manufacturing EN 1092-2 PN16 Welding Neck Flange Class 300, which has a wide range of oil and gas applications, paper and pulp, power plant, food processing, etc. The Class 300 Flange is a popular choice because of the strength and durability it offers. We produce customized Series B 300 LB Pipe Flanges according to the specific requirements of our clients and are capable of furnishing large or intermediate sizes. We also manufacture ASME B16.47 Series A Class 300 Raised Face Flange, which is commonly used in process plant application and is easily identifiable due to its raised face-here the gasket surface is higher than the bolting circle face.

ASME B16.5 Class 300 Flange

ANSI 300 LB Flanges

300# Series A / Series B Flange


Table of Content
- Standard Dimensions Of ANSI / ASME B16.5 Class 300 Forged Flanges
- EN 1092-2 PN16 Welding Neck Flange ASME B16.5 Class 300 Pressure Rating Chart
- ASME B16.5 Class 300 Flange Specification
- MSS SP-44 Class 300 Flange Bolt Hole Pattern
- Carbon Steel Class 300 Flange Price List In India
- EN 1092-1 Type 02 300 LB Orifice Flange Weight Chart According to ASME B16.5
- Available Type Of ANSI B16.5 Class 300 Flange
- Stainless Steel Class 300 Flange Size Formula
- ASME B16.47 Series A Class 300 Raised Face Flange Thickness Calculation
- Series B 300 LB Pipe Flanges Material Grades
- DIN 300# RTJ Flange Chemical Compatibility
Standard Dimensions Of ANSI / ASME B16.5 Class 300 Forged Flanges

NPS | O.D. Of 300 flanges |
Mini. Thickness of 300 flanges |
Overall Length | Bolt Circle |
No. and Size of Holes |
Outside Daimeter of Raised Face |
|||
---|---|---|---|---|---|---|---|---|---|
Weld-neck | Slip-on & Soket-weld |
Lap-Joint | |||||||
O | Q | Y | Diammeter | Number | diameter | R | |||
1/2 | 95 | 14.3 | 52.4 | 22.2 | 22.2 | 666.5 | 4 | 15 | 35 |
3/4 | 117 | 15.9 | 57.2 | 25.4 | 25.4 | 82.4 | 4 | 19 | 43 |
1 | 124 | 17.5 | 61.9 | 27.0 | 27.0 | 89.0 | 4 | 19 | 51 |
1-1/4 | 133 | 19.1 | 65.1 | 27.0 | 27.0 | 98.5 | 4 | 19 | 64 |
1-1/2 | 156 | 20.7 | 68.3 | 30.2 | 30.2 | 114.5 | 4 | 22 | 73 |
2 | 165 | 22.3 | 69.8 | 33.3 | 33.3 | 127.0 | 8 | 19 | 92 |
2-1/2 | 190 | 25.4 | 76.2 | 38.1 | 38.1 | 149.0 | 8 | 22 | 105 |
3 | 210 | 28.6 | 79.4 | 42.9 | 42.9 | 168.0 | 8 | 22 | 127 |
4 | 254 | 318 | 85.7 | 47.6 | 47.6 | 200.0 | 8 | 22 | 157 |
5 | 279 | 35.0 | 98.4 | 50.8 | 50.8 | 235.0 | 8 | 22 | 186 |
6 | 313 | 36.6 | 98.4 | 52.4 | 52.4 | 270.0 | 12 | 22 | 216 |
6 | 381 | 413 | 111.1 | 61.9 | 91.9 | 330.0 | 12 | 25 | 270 |
10 | 444 | 47.7 | 117.5 | 66.7 | 95.3 | 387.5 | 16 | 29 | 324 |
12 | 521 | 50.8 | 130.2 | 73.0 | 101.6 | 451.0 | 16 | 32 | 381 |
14 | 584 | 54.0 | 142.9 | 76.2 | 111.1 | 514.5 | 20 | 32 | 413 |
16 | 648 | 57.2 | 146.0 | 82.6 | 120.7 | 571.5 | 20 | 35 | 470 |
18 | 711 | 60.4 | 158.8 | 88.9 | 130.2 | 628.5 | 24 | 35 | 533 |
20 | 775 | 63.5 | 161.9 | 95.2 | 139.7 | 686.0 | 24 | 35 | 584 |
24 | 914 | 69.9 | 168.3 | 106.4 | 152.4 | 843.0 | 24 | 41 | 692 |
EN 1092-2 PN16 Welding Neck Flange ASME B16.5 Class 300 Pressure Rating Chart
Temperature (in F°) |
ASME B16.5 Class 300 Flange |
100 |
740 |
200 |
680 |
300 |
655 |
400 |
635 |
500 |
605 |
600 |
570 |
650 |
550 |
700 |
530 |
750 |
505 |
800 |
410 |
850 |
320 |
900 |
230 |
950 |
135 |
1000 |
85 |
Hydrostatic Test Pressure (psig) |
1125 |
Refer MSS SP-44 300# Flange Bolt Chart, Standard Specification Of EN 1092-1 Type 02 300 LB Pipe Flange, Get Free Quote Welding Neck Flange ASME B16.5 Class 300.
ASME B16.5 Class 300 Flange Specification
Material Specification : | ASME B16.5 Class 300 Flange |
---|---|
Production Techniques In Manufacturing |
|
Most Different Type Of Flanges | Forged / Plate/ Threaded |
Manufacturer Common Types Flange | Weld Neck Flanges, Blind Flanges, Lap Joint Flanges, Socket-Weld Flanges, Slip-On Flanges, Threaded Flanges |
Application | Oil And Gas Industry Fossil Fuel Power Plants Waterworks Systems Municipal Pipe Systems Food Processing And Manufacturing Nuclear Power Application Power Plants Industry |
Size Chart For Flange | Size (1/2") To Size (48") |
High Temp | Above 200° Celsius (400°F) For 150 Class Or Above 400° Celsius (750°F) |
Low Temp | Above -29 ° Celsius (−20°F) |
Japanese (JIS) Standards | Japanese Standards = 5K, 10K, 40K, 16K 20K 30K, 63K |
Manufacturer Of Steel Materials | Inconel, Hastelloy, Carbon Steel, Cast Iron, Duplex Steel & Super Duplex Steel, Copper Nickel, Stainless Steel, Wrought Iron, Alloy Steel, Mild Steel. |
Thickness Calculation | NPS ≤ 18 |
Bore Diameter Of Steel Flanges | NPS ≤ 10 |
Standards Types | EN1092, API7S-43, API605, BS4504, API7S-15, API, ISO, UNI, EN-1092, ANSI/ASME B16.5, MSS S44, ISO70051, ASME B16.36, DIN, BS1560-3.1, B16.47 Series A & B, ASME B16.48, AWWA C207, IS 2062. |
Pressure Class | Class 150, Class 300, Class 400, Class 600, Class 900, Class 1500, Class 2500 |
Different Shapes Of | Large Male-Female And Small Male-Female, RTJ, Large Tongue & Groove And Small Tongue Groove, FF, Raised Face, Lap-Joint Face |
We are supplying flanges to more than 60 locations worldwide | Bengaluru, Batam, Singapore, Istanbul, Jamshedpur, Gurgaon, Kuala Dhaka, Alexandria, Delhi, Tehran, City, Busan, Hyderabad, Seoul, Quezon Tiruchirappalli, Santiago, Mysuru, Calgary, Pune, Dombivli, Panipat, Ho Madrid, Sao Mumbai, Milan, Ankleshwar, Oyama, Bhopal, Chicago, Beijing, Jakarta, Noida, Ajman, Paulo, Hangzhou, Baku, Kochi, Zhengzhou, Dhabi, Tau, Coimbatore, Jubail, London, Manama, Sydney, Nagpur, Lumpur, Pimpri-Chinchwad, Nashik, Al Navi Bangkok, Kalyan, Hanoi, Delhi, Surat, Raipur, Ludhiana, Amsterdam, Abu Bogota, Melbourne, Al Johor Sharjah, Cairo, Secunderabad, Houston, Ghaziabad, Vasai, Chandigarh, Vung Shah Mexico Thane, Doha, Hazira, City, Jaipur, Jamnagar, Vadodara, Ambernath, Khobar, Virar, New Patna, Visakhapatnam, Bahru, Paris, Vapi, Lucknow, Shanghai, Lagos, Dallas, Chennai, Ahmedabad, Dubai, Kolkata, Agra, Surabaya, Dammam, Rajkot, Riyadh, Jeddah, Faridabad, Brisbane, Puchong, Chi Karachi, Perth, Ashburn, Bhubaneswar, City, Indore, Alam, Kota Mumbai, Guwahati. |
MSS SP-44 Class 300 Flange Bolt Hole Pattern
ASME B16.5 Class 300 Flange |
||||
---|---|---|---|---|
NPS | Studs or Bolts | Diameter of Studs or Bolts | Length of Stud | |
1/16 RF | RTJ | |||
1/2 | 4 | 0.50 | 2-1/4 | - |
3/4 | 4 | 0.50 | 2-1/2 | - |
1 | 4 | 0.50 | 2-1/2 | 3 |
1-1/4 | 4 | 0.50 | 2-3/4 | 3-1/4 |
1-1/2 | 4 | 0.50 | 2-3/4 | 3-1/4 |
2 | 4 | 0.63 | 3-1/4 | 3-3/4 |
2-1/2 | 4 | 0.63 | 3-1/2 | 4 |
3 | 4 | 0.63 | 3-1/2 | 4 |
3-1/2 | 8 | 0.63 | 3-1/2 | 4 |
4 | 8 | 0.63 | 3-1/2 | 4 |
5 | 8 | 0.75 | 3-3/4 | 4-1/4 |
6 | 8 | 0.75 | 4 | 4-1/2 |
8 | 8 | 0.75 | 4-1/4 | 4-3/4 |
10 | 12 | 0.88 | 4-1/2 | 5 |
12 | 12 | 0.88 | 4-3/4 | 5-1/4 |
14 | 12 | 1.00 | 5-1/4 | 5-3/4 |
16 | 16 | 1.00 | 5-1/4 | 5-3/4 |
18 | 16 | 1.13 | 5-3/4 | 6-1/4 |
20 | 20 | 1.13 | 6-1/4 | 6-3/4 |
24 | 20 | 1.25 | 6-3/4 | 7-1/4 |
Carbon Steel Class 300 Flange Price List In India
Description | Price In INR (Per Piece) |
Carbon Steel SORF Flange ASTM A105 | |
---|---|
2 X 300# | 280.00 |
3 X 300# | 430.00 |
4 X 300# | 620.00 |
6 X 300# | 900.00 |
8 X 300# | 1650.00 |
10 X 300# | 2400.00 |
Please note this is an approx Price of ASME B16.5 Class 300 Flange in India. For final 300# Flanges Price List Please Call on +91(22) – 6743 8321 or drop an Email to info@rpfindia.com.
AWWA C207 Class 300 Raised Face Flange Size Chart, We Provide ASTM A105 Class 300 Flange In-House Cutting.
EN 1092-1 Type 02 300 LB Orifice Flange Weight Chart According to ASME B16.5
CLASS | NPS | Slip-on | NPT | Soket-weld | Lap-Joint | Blind | Weld-neck |
ASME B16.5 Class 300 Flange | ½ | 1 | 1 | 2 | 1 | 2 | 2 |
¾ | 2 | 2 | 2 | 2 | 2 | 2 | |
1 | 2 | 2 | 2 | 2 | 2 | 3 | |
1¼ | 3 | 3 | 3 | 3 | 3 | 3 | |
1½ | 3 | 3 | 3 | 3 | 4 | 4 | |
2 | 5 | 5 | 5 | 5 | 5 | 6 | |
2½ | 8 | 8 | 8 | 8 | 7 | 10 | |
3 | 9 | 9 | 9 | 9 | 9 | 11.5 | |
3½ | 11 | 12 | 11 | 11 | 13 | 12 | |
4 | 13 | 13 | 13 | 13 | 17 | 16.5 | |
5 | 15 | 15 | 15 | 15 | 20 | 21 | |
6 | 19 | 19 | 19 | 19 | 27 | 26 | |
8 | 30 | 30 | 30 | 30 | 47 | 42 | |
10 | 43 | 43 | 43 | 43 | 70 | 54 | |
12 | 64 | 64 | 64 | 64 | 123 | 88 | |
14 | 90 | 90 | 90 | 105 | 140 | 114 | |
16 | 106 | 98 | 98 | 140 | 180 | 140 | |
18 | 130 | 130 | 130 | 160 | 220 | 165 | |
20 | 165 | 165 | 165 | 195 | 285 | 197 | |
22 | 185 | 185 | 185 | 245 | 355 | 225 | |
24 | 220 | 220 | 220 | 275 | 430 | 268 |
Available Type Of ANSI B16.5 Class 300 Flange

SCH 10, 2 inch, ASTM F316L, Weld Neck Flange Class 300

SCH 80, 8 inch, ASME B16.5 Socket Weld Class 300 Flange

Sch 120, 12 inch, A182 F304L, Class 300 Raised Face Flange

SCh 120, 12 inch, A182 F304, Full Face, Class 300 Rf Flange

SCh 20, 3 inch, ASTM A182 F317L, EN 1092-1 Class 300 Orifice Flanges

SCh 180, 4 inch, RF, ASTM A182 F316L, Class 300 Blind Flanges

Sch 20, 4 inch, A182 310s, Class 300 Raised Face Flange

SCh 60, 4 inch, A182 F321, Class 300 Reducing Flange

Sch 120, 10 inch, ASTM A105, Class 300 Rtj Flange
Stainless Steel Class 300 Flange Size Formula
ASME B16.5 Class 300 Flange |
||||
---|---|---|---|---|
NPS | # Studs or Bolts | Dia of Studs or Bolts | Length of Stud | |
1/16 RF | RTJ | |||
1/2 | 4 | 0.50 | 2-1/4 | - |
3/4 | 4 | 0.50 | 2-1/2 | - |
1 | 4 | 0.50 | 2-1/2 | 3 |
1-1/4 | 4 | 0.50 | 2-3/4 | 3-1/4 |
1-1/2 | 4 | 0.50 | 2-3/4 | 3-1/4 |
2 | 4 | 0.63 | 3-1/4 | 3-3/4 |
2-1/2 | 4 | 0.63 | 3-1/2 | 4 |
3 | 4 | 0.63 | 3-1/2 | 4 |
3-1/2 | 8 | 0.63 | 3-1/2 | 4 |
4 | 8 | 0.63 | 3-1/2 | 4 |
5 | 8 | 0.75 | 3-3/4 | 4-1/4 |
6 | 8 | 0.75 | 4 | 4-1/2 |
8 | 8 | 0.75 | 4-1/4 | 4-3/4 |
10 | 12 | 0.88 | 4-1/2 | 5 |
12 | 12 | 0.88 | 4-3/4 | 5-1/4 |
14 | 12 | 1.00 | 5-1/4 | 5-3/4 |
16 | 16 | 1.00 | 5-1/4 | 5-3/4 |
18 | 16 | 1.13 | 5-3/4 | 6-1/4 |
20 | 20 | 1.13 | 6-1/4 | 6-3/4 |
24 | 20 | 1.25 | 6-3/4 | 7-1/4 |
High Pressure Stainless Steel Class 300 Flange Fast Delivery in India, Thickness Of ANSI 300 LB Flanges, Manufacturer Of ANSI B16.47 Series A Class 300 Flanges In India.
ASME B16.47 Series A Class 300 Raised Face Flange Thickness Calculation
NPS | "A" (Outside Daimeter) |
"B" (Thickness) |
"C" (RF Diameter) |
"D" (B.C.D.) |
# Bolt Holes |
Diameter of Bolt Holes |
Appr. Weight |
1/2" | 3-1/2 | 7/16 | 1-3/8 | 2-3/8 | 4 | 5/8 | 2 |
3/4" | 3-7/8 | 1/2 | 1-11/16 | 2-3/4 | 4 | 5/8 | 2 |
1" | 4-1/4 | 9/16 | 2 | 3-1/8 | 4 | 5/8 | 2 |
1-1/4" | 4-5/8 | 5/8 | 2-1/2 | 3-1/2 | 4 | 5/8 | 3 |
1-1/2" | 5 | 11/16 | 2-7/8 | 3-7/8 | 4 | 5/8 | 3 |
2" | 6 | 3/4 | 3-5/8 | 4-3/4 | 4 | 3/4 | 4 |
2-1/2" | 7 | 7/8 | 4-1/8 | 5-1/2 | 4 | 3/4 | 7 |
3" | 7-1/2 | 15/16 | 5 | 6 | 4 | 3/4 | 9 |
3-1/2" | 8-1/2 | 15/16 | 5-1/2 | 7 | 8 | 3/4 | 13 |
4" | 9 | 15/16 | 6-3/16 | 7-1/2 | 8 | 3/4 | 17 |
5" | 10 | 15/16 | 7-5/16 | 8-1/2 | 8 | 7/8 | 20 |
6" | 11 | 1 | 8-1/2 | 9-1/2 | 8 | 7/8 | 27 |
8" | 13-1/2 | 1-1/8 | 10-5/8 | 11-3/4 | 8 | 7/8 | 47 |
10" | 16 | 1-3/16 | 12-3/4 | 14-1/4 | 12 | 1 | 67 |
12" | 19 | 1-1/4 | 15 | 17 | 12 | 1 | 123 |
14" | 21 | 1-3/8 | 16-1/4 | 18-3/4 | 12 | 1-1/8 | 139 |
16" | 23-1/2 | 1-7/16 | 18-1/2 | 21-1/4 | 16 | 1-1/8 | 187 |
18" | 25 | 1-9/16 | 21 | 22-3/4 | 16 | 1-1/4 | 217 |
20" | 27-1/2 | 1-11/16 | 23 | 25 | 20 | 1-1/4 | 283 |
24" | 32 | 1-7/8 | 27-1/4 | 29-1/2 | 20 | 1-3/8 | 415 |
Available Types Of DIN 86029 PN10 ANSI B16.5 Class 300 Forged Flanges For Sale In Mumbai, India, ASME B16.5 Class 300 Flange Dimensions In MM, Leading Manufacturer of Class 300 ANSI B16.5 Forged Flanges In India.
Series B 300 LB Pipe Flanges Material Grades
Material | Pipes | Fittings | Flanges | Valves | Bolt & Nut |
Carbon Steel | A106 Grades A | A234 Grades WPA | A105 | A216 Grades WCB | A193 Grades B7 A194 Grades 2H |
A106 Grades B | A234 Grades WPB | A105 | A216 Grades WCB | ||
A106 Grades C | A234 Grades WPC | A105 | A216 Grades WCB | ||
Carbon Steel Alloy High-Temp |
A335 Grades P1 | A234 Grades WP1 | A182 Grades F1 | A217 Grades WC1 | A193 Grades B7 A194 Grades 2H |
A335 Grades P11 | A234 Grades WP11 | A182 Grades F11 | A217 Grades WC6 | ||
A335 Grades P12 | A234 Grades WP12 | A182 Grades F12 | A217 Grades WC6 | ||
A335 Grades P22 | A234 Grades WP22 | A182 Grades F22 | A217 Grades WC9 | ||
A335 Grades P5 | A234 Grades WP5 | A182 Grades F5 | A217 Grades C5 | ||
A335 Grades P9 | A234 Grades WP9 | A182 Grades F9 | A217 Grades C12 | ||
Carbon Steel Alloy Low-Temp |
A333 Grades 6 | A420 Grades WPL6 | A350 Grades LF2 | A352 Grades LCB | A320 Grades L7 A194 Grades 7 |
A333 Grade 3 | A420 Grade WPL3 | A350 Grade LF3 | A352 Grade LC3 | ||
Austenitic Stainless Steel |
A312 Grade TP304 | A403 Grade WP304 | A182 Grade F304 | A182 Grade F304 | A193 Grade B8 A194 Grade 8 |
A312 Grade TP316 | A403 Grade WP316 | A182 Grade F316 | A182 Gr F316 | ||
A312 Gr TP321 | A403 Gr WP321 | A182 Gr F321 | A182 Gr F321 | ||
A312 Gr TP347 | A403 Gr WP347 | A182 Gr F347 | A182 Gr F347 |
DIN 300# RTJ Flange Chemical Compatibility
C |
Mn |
P |
S |
Si |
Cu |
Ni |
Cr |
Mo |
V |
0.35 |
0.60-1.05 |
0.035 |
0.04 |
0.10-0.35 |
0.4 |
0.4 |
0.3 |
0.12 |
0.08 |
maxi. |
– |
maxi. |
maxi. |
– |
maxi. (1) |
maxi. (1) |
maxi. (1-2) |
maxi. (1-2) |
maxi. |
Locations We Have Supplied Recently
ASME B16.5, FF, 4 Inch, Weld Neck Flange Class 300 | South Africa, Singapore, Bahrain |
Sch 40, EN 1092-1, RF, Class 300 Stainless Steel Flange | Thailand, Europe, France, Qatar |
8 Inch, Class 300 Raised Face Flange | Nigeria, Australia, Philippines, UK |
2 inch, DN 15, Class 300 Flange Adapter | Malaysia, Hong Kong, Oman, UAE |
FF, ASME B16.5, 8 Inch, Class 300 Rf Flange | Malaysia, USA, Finland, Bangladesh |
SCH100, 10 Inch, Class 300 Orifice Flanges | Iran, Chile, Italy, Singapore |
14 Inch, SCH 100, Class 300 Blind Flanges | Norway, Malaysia, United Arab Emirates (UAE), Turkey |
PN 50, DN 100, ANSI B16.5, RF, Class 300 Pipe Flanges | Indonesia, Belgium, Dammam -KSA, Philippines. |
20 Inch, EN 10204-1, Class 300 Raised Face Flange | Singapore, Malaysia, Canada, Philippines |
SCH 110, 22 Inch, Threaded Flange Class 300 | Spain, UK, Egypt, Mexico |
Forged, 26 Inch, 1 Inch Class 300 Flange | Poland, Canada, Ellington -United States, UK |
RF, 12 Inch, Welding Neck Flange Asme B16.5 Class 300 | Europe, UAE, United Kingdom -UK, Malaysia |
SCH 120, 2 Inch, Ansi B16.47 Series A Class 300 Flanges | Europe, Romania, Japan, Malaysia |
SCH130, BS 10, 6 Inch, Class 300 Copper Flange | Czechia, Malaysia, Germany, Thailand |
RF, 18 Inch, ASME B16.48, 300 Lb Flanges | Malaysia, Sweden, Colombia, China |
SCH 140, 8 Inch, Asa 300 Flanges | Netherlands, Russia, Dubai, Malaysia |
SCH STD, 4 Inch, ANSI/ASME B16.5 Class 300 Forged Flanges | Qatar, Thailand, France, Europe |
4 Inch, SCH 160, Class 300 ANSI B16.5 Forged Flanges | Czechia, Malaysia, Germany, Thailand |
Raised Face, 20 Inch, ANSI B16.47 Series A Class 300 Flanges | Finland, USA, Bangladesh, Malaysia |
(Flate Face), 18 Inch, MS Flange ASA 300 Class | Netherlands, Russia, Dubai, Malaysia |