Temperature Ratings Of Class 400 Weld Neck And SORF Flanges, Stainless Steel Class 400 Flange Size Chart.
The selection of class 400 flanges can be complicated without proper guidelines. This article will help you with the guidelines for selecting the suitable ASME B16.5 Class 400 Flange, which is available in sizes NPS ½ to NPS 48. Firstly, it is vital to choose the right manufacturer of Class 400 Weld Neck Flange to get high-quality products at the most reasonable prices. The Flanges Slip On Class 300# we produce is an excellent addition to the piping system; it helps in reducing the stress concentration from the hub’s base. Our Stainless Steel Class 400 Flange is made up of great quality metals and is corrosion-resistant too. These are pretty durable and can last for many years.
We are experienced manufacturers of 300LB Forged Flanges, an excellent connection component that helps form the piping system. As the Class 400 Pipe Flange, this one too helps provide easy access for cleaning, maintenance, and repairs.
Another widely available and helpful flange that our client loves is the AWWA C207 Class 400 Flange. It is an economical choice with some great applications in various industries like Oil and Gas, Petrochemicals, etc. Our flanges are durable, which means they can last for many years. They are corrosion-resistant, high in quality, and give true value for the money.

ASME B16.5 Class 400 Flange

Flanges Slip On Class 300#

300LB Forged Flanges


Table of Content
- ASME B16.5 Class 400 Flange Dimensional Chart
- BS 4504 PN10 Long Weld Neck 400 LB Flange Temperature Ratings
- Stainless Steel Class 400 Flange Size Table
- MSS SP-44 Welding Neck Flange ASME B16.5 Class 400 Specification Chart
- Price List Of AWWA C207 Class 400 Flange
- EN 1092-2 Flange Class 400 LBS Bolt Pattern
- ASME B16.47 Series A Flanges 400# Flange Thickness Tolerance
- ANSI B 16.5 Class 400 Flange Weight Chart
- Available Type Of Carbon Steel Class 400 Flange
- Material Grades Of DIN Class 400 Pipe Flange
- Chemical Compatibility Of ASTM A105 Class 400 Flange
ASME B16.5 Class 400 Flange Dimensional Chart

BS 4504 PN10 Long Weld Neck 400 LB Flange Temperature Ratings
Temperature (in F°) | ASME B16.5 Class 400 Flange |
< 100 | 985 |
200 | 905 |
300 | 870 |
400 | 845 |
500 | 805 |
600 | 755 |
650 | 730 |
700 | 710 |
750 | 675 |
800 | 550 |
850 | 425 |
900 | 305 |
950 | 185 |
1000 | 115 |
Hydrostatic Test Pressure (in Psig) | 1500 |
Stainless Steel Class 400 Flange Size Table
ASME B16.5 Class 400 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 |
EN 1092-2 PN16 Slip-On 400# Flanges Material Specification, We Provide Multiple Payment Options Of MSS SP-44 Class 400 Reducing Flange With Low Price, Manufacturer Of Carbon Steel 400LB Flange In India.
MSS SP-44 Welding Neck Flange ASME B16.5 Class 400 Specification Chart
Specification Format Of : | ASME B16.5 Class 400 Flange |
---|---|
Size Details | (1/2") To (48") |
High Temperature Ratings | Above 200° Celsius (400°F) For 150 Class Or Above 400° Celsius (750°F) |
Low Temperature Ratings | Above -29 ° Celsius (−20°F) |
Manufacturer Of Japanese Standards | JIS = 5K, 10K, 40K, 16K 20K 30K, 63K |
Available Materials | Cast Iron, Duplex Steel & Super Duplex Steel, Inconel, Stainless Steel, Wrought Iron, Alloy Steel, Mild Steel, Hastelloy, Carbon Steel, Copper Nickel. |
Thickness Chart | NPS ≤ 18 |
Bore Diameter Formula | NPS ≤ 10 |
ASME B16.5 Standards | EN1092 Flange, UNI Flange, EN-1092 Flange, ANSI/ASME B16.5 Flange, API7S-43 Flange, API605 Flange, BS4504 Flange, API7S-15 Flange, API Flange, ISO Flange, MSS S44 Flange, ASME B16.48 Flange, AWWA C207 Flange, IS 2062 Flange, ISO70051 Flange, ASME B16.36 Flange, DIN Flange, BS1560-3.1 Flange, B16.47 Series A & B Flange. |
Pressure Test | Class 150 To Class 2500 |
Available Face Type Of Flanges | FF, Raised Face, Large Male-Female And Small Male-Female, Lap-Joint Face, RTJ, Large Tongue & Groove And Small Tongue Groove. |
Forging Techniques In |
|
Different Type | Forged / Plate/ Threaded |
ISO Approved Manufacturer Of | Lap Joint, Socket-Weld, Threaded, Weld Neck, Blind, Slip-On |
Wide Stockist of | Nagpur, Hyderabad, Ashburn, Johor Dallas, Khobar, Sharjah, Gurgaon, Istanbul, Paulo, Panipat, Surabaya, Lumpur, Surat, Cairo, Alexandria, Busan, Shah New Bogota, Faridabad, Minh Noida, Riyadh, Dombivli, Chennai, Puchong, Ludhiana, Jamnagar, Hanoi, Abu Bangkok, Kalyan, Thane, London, Secunderabad, Vapi, Hazira, Ho Nashik, Dhabi, Tehran, Coimbatore, Milan, Quezon Hangzhou, Dubai, Delhi, Pimpri-Chinchwad, Indore, City, Ambernath, Al Alam, Kota, Batam, Tau, Sao Seoul, Dhaka, Vasai Bahru, Kolkata, Singapore, Beijing, Sydney, Mexico Brisbane, Dammam, Ankleshwar, City, Houston, Guwahati, Ghaziabad, City, Perth, Kuala Visakhapatnam, Bengaluru, Santiago, Al Lucknow, Amsterdam, Chi Madrid, Paris, Chicago, Delhi, Vadodara, Zhengzhou, Jakarta, Pune, Calgary, Chandigarh, Oyama, Karachi, Jeddah, Mysuru, Melbourne, Bhopal, Baku, Patna, Ajman, Kochi, Bhubaneswar, Jaipur, Mumbai, Doha, Raipur, Jubail, Jamshedpur, Navi Rajkot, Shanghai, Tiruchirappalli, Manama, Virar, Agra, Vung Mumbai, Lagos, Ahmedabad |
Application For Use | Oil And Gas Industry Municipal Pipe Systems Food Processing And Manufacturing Fossil Fuel Power Plants Waterworks Systems Nuclear Power Application Power Plants Industry |
Price List Of AWWA C207 Class 400 Flange
Description | Price In INR (Per Piece) |
Carbon Steel WNRF Flange ASTM A105 | |
---|---|
2 X 400# X SCH STD | 510.00 |
3 X 400# X SCH STD | 800.00 |
4 X 400# X SCH STD | 950.00 |
6 X 400# X SCH STD | 1600.00 |
8 X 400# X SCH STD | 2500.00 |
10 X 400# X SCH STD | 4000.00 |
Please note this is an approx Price of ASME B16.5 Class 400 Flange in India. For final 400# Flanges Price List Please Call on +91(22) – 6743 8321 or drop an Email to info@rpfindia.com.
Check ASME B16.47 Series A Class 400 Raised Face Flange Bolt Pattern, PDO Approved Welding Neck Flange ASME B16.5 Class 400 Manufacturers In India.
EN 1092-2 Flange Class 400 LBS Bolt Pattern
ASME B16.5 Class 400 Flange | ||
# Studs or Bolts | Dia of Studs or Bolts | Length of Stud |
1/16 RF | ||
4 | 0.50 | 2-1/2 |
4 | 0.63 | 3 |
4 | 0.63 | 3 |
4 | 0.63 | 3-1/4 |
4 | 0.75 | 3-1/2 |
8 | 0.63 | 3-1/2 |
8 | 0.75 | 4 |
8 | 0.75 | 4-1/4 |
8 | 0.75 | 4-1/4 |
8 | 0.75 | 4-1/2 |
8 | 0.75 | 4-3/4 |
12 | 0.75 | 4-3/4 |
12 | 0.88 | 5-1/2 |
16 | 1.00 | 6-1/4 |
16 | 1.13 | 6-3/4 |
20 | 1.13 | 7 |
20 | 1.25 | 7-1/2 |
24 | 1.25 | 7-3/4 |
24 | 1.25 | 8 |
24 | 1.50 | 9 |
Temperature Ratings Of DIN 86029 PN10 ANSI B16.5 Class 400 Flange, ASME B16.47 Series B 400 lb Blind Flange Thickness Size, One Of India’s Largest Manufacturer Of B16.47 Series A Class 400 Flanges.
ASME B16.47 Series A Flanges 400# Flange Thickness Tolerance
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 |
ANSI B 16.5 Class 400 Flange Weight Chart
CLASS | NPS | Slip-on | NPT | Soket-weld | Lap-Joint | Blind | Weld-neck |
ASME B16.5 Class 400 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 Carbon Steel Class 400 Flange

SCh 120, 12 inch, A182 F304, Full Face, Class 400 Rf Flange

SCh 20, 3 inch, ASTM A182 F317L, EN 1092-1 Class 400 Orifice Flanges

SCh 180, 4 inch, RF, ASTM A182 F316L, Class 400 Blind Flanges

Sch 20, 4 inch, A182 310s, Class 400 Raised Face Flange

SCh 60, 4 inch, A182 F321, Class 400 Reducing Flange

Sch 120, 10 inch, ASTM A105, Class 400 Rtj Flange

SCH 10, 2 inch, ASTM F316L, Weld Neck Flange Class 400

SCH 80, 8 inch, ASME B16.5 Socket Weld Class 400 Flange

Sch 120, 12 inch, A182 F304L, Class 400 Raised Face Flange
Looking to Buy EN 1092-1 Type 02 Class 400 Pipe Flanges? Contact Rajendra Piping & Fittings At Factory Price, A Reliable ASME B16.5 Class 400 Flange Supplier in Mumbai, India.
Material Grades Of DIN Class 400 Pipe Flange
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 |
Chemical Compatibility Of ASTM A105 Class 400 Flange
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. |
Execution | ASME Class Dimensions |
---|---|
Welding Neck |
ASNE B16.5 / 16:47 Dimensions |
Blind |
ASNE B16.5 / 16:47 Dimensions |
Slip On |
ASNE B16.5 Dimensions |
Lap Joint |
ASNE B16.5 Dimensions |
Threaded |
ASNE B16.5 Dimensions |
Socket Welding |
ASNE B16.5 Dimensions |
Long Welding Neck |
ASNE B16.5 Dimensions |
Orifice |
ASME B16:36 Dimensions |
Spectacle Blind |
ASME B16:38 Dimensions |
We Have Recently Delivered ASTM A105 Carbon Steel Flanges To The Following Countries:
EN 10204, 6 Inch, RF, SCH 12, Class 400 Weld Neck And SORF Flange | Canada, Malaysia, Philippines, Singapore |
ASME B16.5, 8 Inch, RF, Asme B16.5 Class 400 Flanges | Europe, Japan, Romania, Malaysia |
BS 10 Table E, Sch 20, 10 Inch, Ansi B16.5 Class 400 Flanges | Colombia, Sweden, China, Malaysia |
14 Inch, SCH 120, 400 Lb Flange Gasket | United Kingdom -UK, Europe, UAE, Malaysia |
BS 3293, 14 Inch, RF, 400 Lb Orifice Flange | Brazil, Saudi Arabia (KSA), Kuwait, South Africa |
BS 3293, Raised Face, 16 Inch, 400 Lb Blind Flange | South Africa, Bahrain, Singapore |
ASA B16.5, 4 Inch, SCH 40, FF, Flange Class 400 Lbs | Philippines, UK, Australia, Nigeria |
12 Inch, FF, Grooved Flange Class 400 | Oman, UAE, Hong Kong, Malaysia |
SCH 60, 16 Inch, Lap Joint Flange Dimensions Class 400 | Chile, Singapore, Iran, Italy |
SCH 120, 32 Inch, Raised Face, Class 400 Series A Flange | United Arab Emirates (UAE), Norway, Turkey, Malaysia |
RF, 10 Inch, Class 400 Carbon Steel Flange | Philippines, Dammam -KSA, Belgium, Indonesia. |
SCH STD, ASME B16.5, 4 Inch, Flanges Slip On Class 400 | Qatar, Thailand, France, Europe |
4 Inch, SCH 160, Ansi B16.47 Series A Class 400 Flanges | Czechia, Malaysia, Germany, Thailand |
Dual Rated, Raised Face, 20 Inch, Class 400 Pipe Flange | Finland, USA, Bangladesh, Malaysia |
FF (Flate Face), 18 Inch, API 590, Class 400 Slip On Flange | Netherlands, Russia, Dubai, Malaysia |
SCH 140S, 10 Inch, 30 Inch Class 400 Flange | Egypt, UK, Mexico, Spain |
ASME B16.5, FF, 22 Inch, Class 400 Raised Face Flange | Canada, UK, Poland, Ellington -United States |
SCH 140S, 10 Inch, Class 400 ANSI B16.5 Forged Flanges | Egypt, UK, Mexico, Spain |
ASME B16.5, FF, 22 Inch, ANSI B16.47 Series A Class 400 Flanges | Canada, UK, Poland, Ellington -United States |