Carbon Steel Flanges Manufacturers

Top Carbon Steel Flanges in Mumbai

Why Choose Us for Premium Quality Flanges?

At Randhir Metal And Alloys Pvt. Ltd., we offer carbon steel flanges of high quality that are engineered to meet the high demands of different industries. We are offering Top Carbon Steel Flanges in Mumbai, which are designed with precision and attention to detail. Our flanges have strength, reliability, and resistance to corrosion and many applications, be it oil and gas, chemical, or even construction sectors. We are proud of delivering solutions that guarantee long-term performance and durability.

  • Exceptional Strength: High-pressure and tough conditions are not a problem.
  • Corrosion Resistance: Well suited for corrosive environments.
  • Precision Manufacturing: Provides precise alignment and tight connections.
  • Long-Term Durability: Made for long life in service and low maintenance.
What Makes Us the Preferred Manufacturers?

Get Premium Products Directly from Top Carbon Steel Flanges Manufacturers in Mumbai

Our advanced manufacturing techniques combined with our skilled team ensure accuracy in each product. As one of the Top Carbon Steel Flanges Manufacturers in Mumbai, we make sure to provide flanges of the highest quality and performance. We are flexible enough to meet various industrial needs, be they customized or standard solutions. We have all the equipment available to maintain a smooth and quality production. A highly skilled team of experts working with precision in every product.

  • Innovative Technology: Cutting-edge tools for flawless production.
  • Highly Skilled Team: Experts who ensure precision in every product.
  • Customized Solutions: Tailored to meet specific project requirements.
  • Consistent Quality: Reliable performance across all our products.
Looking for Reliable Suppliers Across India?

Looking for Best Carbon Steel Pipe Flanges Suppliers in India?

Our carbon steel pipe flanges are relied upon for strength, corrosion resistance, and more importantly, high-pressure endurance. We are one of the Best Carbon Steel Pipe Flanges Suppliers in India because our quality products are supplied throughout the country. Our carbon steel pipe flanges are relied upon for strength, corrosion resistance, and, more importantly, high-pressure endurance. An extensive inventory is maintained to ensure prompt completion of orders, so our clients do not have to wait.

  • Delivery all over India: Seamless supply across all parts of the country.
  • Variety Product Range: Range of multiple sizes and flanges.
  • Affordable Pricing: Highest quality available at minimal prices.
  • Best Customer Care Support: Responsive help for each of the customer needs.
Material Specification Of : Carbon Steel Flanges And ASTM A105 Flanges
Standard Cover : pressure ratings & temperature ratings, materials, marking, dimensions, weight, tolerances, testing
Contact Faces RTJ (Ring Type Joint) Flanges, FF (Flat Face) Flanges, RF (Raised Face) Flanges, T/G (Tongue And Groove ) Flanges, M/F (Male And Female) Flanges
Size Chart Normal Pipe Size 1/2 to NPS 24"
Thickness Normal Pipe Size ≤ 18
Bore Diameter Normal Pipe ≤ 10
Flanges Standards EN 1092-1 Flanges, JIS Flanges, ASME B16.5 Flanges, ASME B16.47 type A Flanges, UNI Flanges, DIN Flanges
Pressure Rating Class 150 To Class 2500
High Temperature Above 200°C (400°F) For Class 150 Or Above 400°C (750°F)
Low Temperature Above -29 Degree C (−20°F)
Common Types Of Flanges: Slip On (SORF) Flanges, Weld Neck (WNRF) Flanges, Blind (BLRF) Flanges, Lap Joint (Loose) Flanges, Threaded (NPT) Flanges, Socket-Weld (SWRF) Flanges
Special Types Of Flanges : Nipoflange, Elboflange, Latroflange, Swivel Flanges, Expanding Flanges, Reducing Flanges, Weldoflange
Marking Standard Name of Manufacturer
Schedule
Type of Flange Facing
Nominal Pipe Size
Pressure Class
ASME B16 Designation
Bolt Type high strength bolts
medium strength bolts
low strength bolts
European Standard Flanges JIS B2220 Flanges (5k to 30k) and KS1503 flanges
Russian-Standard Flanges GOST 12820 / 12821-80, DIN, UNI, EN 1092-1
South African Standard Flanges SANSflanges And SABS flanges
Surface Finish smooth, concentric serrated, stock
Gaskets Types Full Face Gasket Flanges
Flat Ring Gasket Flanges
Metallic Ring Gakset Flanges
Advantages Of Pipe Flange Used to Connect Pipe System
Easy Repair Pipe System
Assembled Without Welding

Gasket For Carbon Steel Flange

NPS Gasket I.D. Gasket O.D.
Class 150 Class 300 Class 400 Class 600 Class 900
1/2 0.84 1.875 2.125 2.125 2.125 2.50
3/4 1.06 2.25 2.625 2.625 2.625 2.75
1 1.31 2.625 2.875 2.875 2.875 3.125
1 1/4 1.66 3 3.25 3.25 3.25 3.50
1 1/2 1.91 3.375 3.75 3.75 3.75 3.875
2 2.38 4.125 4.375 4.375 4.375 5.625
2 1/2 2.88 4.875 5.125 5.125 5.125 6.50
3 3.50 5.375 5.875 5.875 5.875 6.625
4 4.50 6.875 7.125 7.00 7.625 8.125
5 5.56 7.75 8.50 8.375 9.50 9.75
6 6.62 8.75 9.875 9.75 10.50 11.375
8 8.62 11 12.125 12.00 12.625 14.125
10 10.75 13.375 14.25 14.125 15.75 17.125
12 12.75 16.125 16.625 16.50 18.00 19.625

CS Pipe Flanges Tolerance Chart

ASME B16.5 Tolerance
A Outside Diameter (O.D.)
  • When Outside Diameter (O.D.) is 24" or less: ±1/16" (1.6 mm)
  • When Outside Diameter (O.D.) is over 24": ±1/8" (3.2 mm)
D Inside Diameter
  • 10" and smaller: ±1/32" (0.8 millimeter)
  • 12" thru 18": +1/8" (3.2 millimeter)
  • 20" and larger: -1/16" (1.6 millimeter)
B Diameter of contact face
  • 1/16" raised face: ±1/32" (0.8 millimeter)
  • 1/4" Raised Face (RF), Tongue & Groove (T/G), (male & female), (m/f): ±1/64" (0.4 mm)
J Diameter of hub at base
  • When hub base is 24" or smaller: ±1/16" (1.6 millimeter)
  • When hub base is over 24": ±1/8" (3.2 millimeter)
H Diameter of hub at point of welding
  • 5" and smaller: +3/32" (2.4 millimeter), -1/32" (0.8 millimeter)
  • 6" and larger: +5/32" (4.0 millimeter), -1/32 (0.8 millimeter)
P Drilling
  • Bolt circle: ±1/16" (1.6 millimeter)
  • Bolt hole spacing: ±1/32" (0.8 millimeter)
Eccentricity of bolt circle with respect to facing
  • 2 1/2" and smaller ±1/32" (0.8 millimeter) max.
  • 3" and larger ±1/16" (1.6 millimeter) max.
C Thickness
  • 18" and smaller: ±1/8" (3.2 millimeter), -0"
  • 20" and larger: ±3/16" (4.8 millimeter), -0"
K Length of hub
  • 10" and smaller: ±1/16" (1.6 millimeter)
  • 12" and larger: ±1/8" (3.2 millimeter)

ASTM A105 Flanges Mechanical Properties

Tensile Strength minimum Yield Strength minimum Elongation minimum Reduction of Area, minimum Hardness
MPa ksi MPa ksi % % HBW
485 70 250 36 22 30 137-187

ASTM A105 Flanges Chemical Composition

Elements Composition, %
Carbon [C] ≤0.35
Manganese [Mn] 0.60-1.05
Phosphorus [P] ≤0.35
Sulfur [S] ≤0.40
Silicon [Si] 0.10-0.35
Copper [Cu] ≤0.40
Nickel [Ni] ≤0.40
Chromium [Cr] ≤0.30
Molybdenum [Mo] ≤0.12
Vanadium [V] ≤0.08

Carbon Steel A105 Flanges Physical Properties

Density (lb / cu. in.) 0.284
Specific Gravity 7.9
Specific Heat (Btu/lb/Deg F - [32-212 Deg F]) 0.107
Melting Point (Deg F) 2740
Thermal Conductivity 360
Mean Coeff Thermal Expansion 6.7
Modulus of Elasticity Tension 30
Modulus of Elasticity Torsion 11
 

ASTM A105 Flange Pressure Rating

Carbon Steel Flanges pressure rating in psig
( A105 / A350 LF2 / A350 LF3 / A350 LF6)
Temperature (F°)
Class 150
Class 300
Class 400
Class 600
Class 900
Class 1500
Class 2500
-20 to 100
285
740
985
1480
2220
3705
6170
200
260
680
905
1360
2035
3395
5655
300
230
655
870
1310
1965
3270
5450
400
200
635
845
1265
1900
3170
5280
500
170
605
805
1205
1810
3015
5025
600
140
570
755
1135
1705
2840
4730
650
125
550
730
1100
1650
2745
4575
700
110
530
710
1060
1590
2655
4425
750
95
505
675
1015
1520
2535
4230
800
80
410
550
825
1235
2055
3430
850
65
320
425
640
955
1595
2655
900
50
230
305
460
690
1150
1915
950
35
135
185
275
410
685
1145
1000
20
85
115
170
255
430
715

ASTM A105 Weld Neck Flange Dimensions

NPS Size in Inch NPS Size in mm (O.D.) Outer Diameter Thickness Of Flange Hub Outer Diameter Weld Neck Outer Diameter Length Of Welding Neck Bore Diameter Of RF Height Of RF PCD Weld Face
A B C D E F G H I J
1/2 15 90 9.6 30 21.3 46 - 34.9 2 60.3 1.6
3/4 20 100 11.2 38 26.7 51 42.9 2 69.9 1.6
1 25 110 12.7 49 33.4 54 50.8 2 79.4 1.6
1 1/4 32 115 14.3 59 42.2 56 63.5 2 88.9 1.6
1 1/2 40 125 15.9 65 48.3 60 73 2 98.4 1.6
2 50 150 17.5 78 60.3 62 92.1 2 120.7 1.6
2 1/2 65 180 20.7 90 73 68 104.8 2 139.7 1.6
3 80 190 22.3 108 88.9 68 127 2 152.4 1.6
3 1/2 90 215 22.3 122 101.6 70 139.7 2 177.8 1.6
4 100 230 22.3 135 114.3 75 157.2 2 190.5 1.6
5 125 255 22.3 164 141.3 87 185.7 2 215.9 1.6
6 150 280 23.9 192 168.3 87 215.9 2 241.3 1.6
8 200 345 27 246 219.1 100 269.9 2 298.5 1.6
10 250 405 28.6 305 273 100 323.8 2 362 1.6
12 300 485 30.2 365 323.8 113 381 2 431.8 1.6
14 350 535 33.4 400 355.6 125 412.8 2 476.3 1.6
16 400 595 35 457 406.4 125 469.9 2 539.8 1.6
18 450 635 38.1 505 457.2 138 533.4 2 577.9 1.6
20 500 700 41.3 559 508 143 584.2 2 635 1.6
24 600 815 46.1 663 610 151 692.2 2 749.3 1.6
Why Consider Our Global Exports?

Best Carbon Steel Pipe Flanges Exporters in India

We take care that the flanges are packed tightly and shipped with proper care for effective delivery to clients in perfect condition. As one of the Best Carbon Steel Pipe Flanges Exporters in India, we assure you that quality products will be provided to the international market. Our export services surpass global standards, thus making us a trusted partner to industries across the globe.

  • International Presence: Client locations in more than a dozen countries are being served.
  • Secure Packaging: Makes sure every order is delivered safely.
  • Certified Quality: Conforms to International Industry Standards.
  • Dedicated Support: Dedicated support for international clients.
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Randhir Metal & Alloys PVT. LTD. - Factory & Products Videos

Experience the craftsmanship behind Randhir Metal And Alloys Pvt. Ltd. through our factory and product videos. Dive into our state-of-the-art production processes and see how we transform raw materials into top-quality metal and alloy solutions. Our videos showcase the precision, innovation, and dedication that drive our commitment to excellence in every product we deliver.

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