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Carbon Steel Slip On Flanges Manufacturer and Supplier in India
Carbon Steel Slip On Flanges Supplier & Exporter
Carbon Steel Slip On Flanges are pipe fittings that are manufactured through a forging process and can be slipped on the end of the pipe and connected using internal and external fillet welds. The simple design facilitates easy alignment, installation, and reliable operation of such flanges in low- to medium-pressure piping systems. Carbon Steel Slip On Flanges conform to the relevant ASME B16.5 standards and come in different sizes and grades as per industrial requirements. Such flanges are made from carbon steel material, which makes them strong and durable for applications like fluid handling, oil and gas, petrochemical and power generation. Solitaire Overseas is a leading manufacturer, supplier, and exporter of Carbon Steel Slip On Flanges and other products.
Technical Data
Carbon Steel Slip On Flanges Specifications
| Specification Category | Standard Details |
|---|---|
Manufacturing Standards |
ASME B16.5, ASME B16.47 Series A & B, BS 3293, DIN 2576, EN 1092 1 Type 12, ISO 7005 1 |
Material Specifications |
ASTM A105, ASTM A350 LF2 Class 1 & 2, ASTM A694 F42, F46, F52, F60, F65, F70, ASTM A516 Gr 70 |
Pressure Class Ratings |
Class 150, Class 300, Class 600, Class 900, Class 1500, Class 2500 |
Nominal Pipe Sizes |
1/2 Inch to 60 Inch (DN15 to DN1500) |
Facing Types |
Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
Flange Surface Finish |
Smooth Finish (125 to 250 AARH), Stock Finish (250 to 500 AARH), Concentric or Spiral Serrated |
Coating & Protection |
Anti Rust Black Paint, Yellow Varnish, Light Transparent Oil, Hot Dip Galvanized |
Chemical Composition of ASTM A105 & A350 LF2 Slip On Carbon Steel Flanges
The chemical composition determines the weldability, tensile performance, and toughness of the carbon steel material under varying operating temperatures.
| Material Grade | Carbon (C) | Manganese (Mn) | Phosphorus (P) | Sulfur (S) | Silicon (Si) | Other Elements |
|---|---|---|---|---|---|---|
ASTM A105 |
0.35 max |
0.60 to 1.05 |
0.035 max |
0.040 max |
0.15 to 0.35 |
Cu, Ni, Cr, Mo, V combined 1.00 max |
ASTM A350 LF2 |
0.30 max |
0.60 to 1.35 |
0.035 max |
0.040 max |
0.15 to 0.30 |
Nb 0.02 max, V 0.08 max |
ASTM A694 F52 |
0.26 max |
1.40 max |
0.025 max |
0.025 max |
0.15 to 0.35 |
Micro alloyed with Nb, V, Ti |
ASTM A694 F65 |
0.26 max |
1.40 max |
0.025 max |
0.025 max |
0.15 to 0.35 |
Trace micro alloys for strength |
Mechanical Properties of Carbon Steel Slip On Flanges
| Material Grade | Tensile Strength (MPa) | Yield Strength min (MPa) | Elongation min (%) | Hardness max (HBW) | Impact Energy Test Temp |
|---|---|---|---|---|---|
ASTM A105 |
485 min |
250 |
22 |
187 |
Room Temperature |
ASTM A350 LF2 |
485 to 655 |
240 |
22 |
197 |
-46 Degree Celsius (-50 F) |
ASTM A694 F52 |
455 min |
360 |
20 |
235 |
Per project requirement |
ASTM A694 F65 |
535 min |
450 |
19 |
235 |
Per project requirement |
Class 150 Carbon Steel Slip On Flange Dimensions and Weight Chart
The following dimensions strictly comply with ASME B16.5 standards for Class 150 Raised Face Carbon Steel Slip On Flanges.
| NPS (Inches) | Outer Diameter (OD) (mm) | Thickness (T) (mm) | Bore Diameter (B) (mm) | Diameter of Bolt Circle (mm) | Number of Bolts | Bolt Hole Diameter (mm) | Approximate Weight (kg) |
|---|---|---|---|---|---|---|---|
1/2 Inch |
90 |
11.2 |
22.4 |
60.3 |
4 |
15.9 |
0.5 |
3/4 Inch |
100 |
12.7 |
27.7 |
69.8 |
4 |
15.9 |
0.7 |
1 Inch |
110 |
14.3 |
34.5 |
79.4 |
4 |
15.9 |
0.9 |
1.5 Inch |
127 |
17.5 |
49.5 |
98.4 |
4 |
15.9 |
1.4 |
2 Inch |
152 |
19.1 |
61.7 |
120.7 |
4 |
19.1 |
2.3 |
3 Inch |
190 |
23.9 |
90.7 |
152.4 |
4 |
19.1 |
4.1 |
4 Inch |
230 |
23.9 |
116.1 |
190.5 |
8 |
19.1 |
5.6 |
6 Inch |
279 |
25.4 |
170.7 |
241.3 |
8 |
22.2 |
8.6 |
8 Inch |
343 |
28.6 |
221.5 |
298.5 |
8 |
22.2 |
13.6 |
10 Inch |
406 |
30.2 |
276.4 |
362.0 |
12 |
25.4 |
18.6 |
12 Inch |
483 |
31.8 |
327.2 |
431.8 |
12 |
25.4 |
29.5 |
14 Inch |
533 |
35.0 |
359.2 |
476.3 |
12 |
28.6 |
36.3 |
16 Inch |
597 |
36.5 |
410.5 |
539.8 |
16 |
28.6 |
47.6 |
18 Inch |
635 |
39.7 |
461.8 |
577.9 |
16 |
31.8 |
59.0 |
20 Inch |
698 |
42.9 |
513.1 |
635.0 |
20 |
31.8 |
74.8 |
24 Inch |
813 |
47.6 |
616.0 |
749.3 |
20 |
34.9 |
104.3 |
Class 300 & Class 600 Carbon Steel Slip On Flanges Dimensions
Higher pressure classes feature increased flange thickness and larger bolt circles to withstand higher mechanical stress and internal fluid pressures.
| NPS (Inches) | Class 300 OD (mm) | Class 300 Thickness (mm) | Class 300 Weight (kg) | Class 600 OD (mm) | Class 600 Thickness (mm) | Class 600 Weight (kg) |
|---|---|---|---|---|---|---|
1/2 Inch |
95 |
14.3 |
0.9 |
95 |
14.3 |
0.9 |
3/4 Inch |
117 |
15.9 |
1.4 |
117 |
15.9 |
1.4 |
1 Inch |
124 |
17.5 |
1.8 |
124 |
17.5 |
1.8 |
2 Inch |
165 |
22.4 |
3.6 |
165 |
25.4 |
4.5 |
3 Inch |
210 |
28.6 |
7.3 |
210 |
31.8 |
9.1 |
4 Inch |
254 |
31.8 |
11.8 |
273 |
38.1 |
18.1 |
6 Inch |
318 |
36.5 |
20.4 |
356 |
47.6 |
36.3 |
8 Inch |
381 |
41.3 |
32.7 |
419 |
55.6 |
59.0 |
10 Inch |
444 |
47.6 |
47.6 |
508 |
63.5 |
95.3 |
12 Inch |
521 |
50.8 |
65.8 |
559 |
66.7 |
127.0 |
Different Types of Carbon Steel Slip On Flanges
SO Hubbed Flanges
SO Hubbed Flanges: Feature a low tapered hub that provides structural reinforcement and improved gasket alignment under standard operating pressures.
SO Plate Flanges
SO Plate Flanges: Flat-faced ring flanges manufactured directly from steel plate, ideal for lower-pressure, utility, or space-constrained piping runs.
Material: Carbon Steel ASTM A105
Industry Applications of Carbon Steel Slip On Flanges
- Oil & Gas Industry: Crude oil, natural gas, fuel and hydrocarbon piping systems, including process and utility lines.
- Petrochemical Industry: Hydrocarbon processing, transfer lines, chemical feed systems and plant utility piping
- Refineries: Process piping, petroleum product transfer, cooling water and auxiliary piping connections
- Power Generation: Steam, condensate, cooling water, boiler auxiliary and general utility piping
- Chemical Processing: Fluid transfer lines, process piping and equipment connections where compatible carbon steel materials are specified
Frequently Asked Questions
Carbon steel slip on flanges are low-profile forged ring flanges that slide over pipe ends and are fillet-welded inside and outside to secure the joint.
Slip on flanges are primarily manufactured to ASME B16.5, AWWA C207/C228, DIN EN 1092-1, JIS B2220, and BS 4504 dimensional standards.
Available grades include high-yield forged carbon steel, such as ASTM A105 for ambient service, ASTM A350 LF2 for low temperatures, and ASTM A694 F52/F65.
Slip-on flanges are routinely supplied with Raised Face (RF), Flat Face (FF), or Ring Type Joint (RTJ) sealing surfaces.
Slip-on flanges slide over the pipe and require double fillet welds, whereas weld neck flanges butt-weld directly to the pipe for superior high-pressure performance.
Yes, when specified under AWWA C207 or ASME Class 150/300 ratings, slip-on flanges perform reliably in municipal and industrial water pipelines.
They are used in low to moderate-pressure applications across oil and gas, water treatment, power generation, petrochemical, and general chemical processing plants.
Contact Solitaire Overseas for expert guidance and technical support on your slip-on flange order.