What is the importance of Alloy Steel Reducing Flange?
The AS Reducing Flange helps to establish connections between two pipes of different sizes.
What is Alloy Steel Threaded Flange?
The AS Threaded Flange comes with a screw thread that helps to connect the flange and the pipe.
Alloy Steel Pipe Flange Specification
| Specification |
Standard |
Size |
| Alloy Steel Flanges |
API, EN 1092-1, DIN, ASME B16.5, JIS, MSS SP-44 |
2″ To 24 Inch (As per customer Requirment) |
| Types |
Face Types |
Minimum Order Quantity |
| BLRF, SORF, SWRF, WNRR |
RTJ, RF, FF |
100 Pieces |
| Shape |
Surface |
Unit of Measure |
| Round |
Galvanized |
Kilograms/KG |
| Purity |
Grade |
Color |
| 98% |
Alloy Steel |
Black |
What is the maximum pressure rating for ANSI 150 Alloy Steel Forged Flange?
The maximum pressure rating for ANSI 150 Alloy Steel Forged Flanges is approximately 270 PSIG in ambient conditions.
Low Alloy Steel Flanges as per AWWA, BS, DIN, EN, ANSI, & ASME B16.5, check Chromoly flanges price per kg in Dubai
comparison Alloy Steel Flanges Price between India and UAE
| Description |
Price In India (INR) KG |
US (Doolar) KG |
| 2X1″, SCHXXS, 2500#, WNRTJ |
₹8027.42 |
US $98.79 |
| 4 1/2″, SCH20, 150#, WNRTJ |
₹60376.42 |
US $743.04 |
| 2X3/4″, SCH 12.7 2500#, WNRTJ |
₹8027.42 |
US $98.79 |
| Description |
Price In UAE (dirham) Per KG |
US (Dollar) KG |
| 2″, SCH 40, 150#, BLND |
326.91 |
US $89.00 |
| 3″, SCH 40, 150#, BLND |
411.39 |
US $112.00 |
| 4″, SCH 80, 150#, BLND |
679.52 |
US $21.65 |
Choose verified Alloy Steel Slip On Flange and AS Weld Neck Flange suppliers in UAE and minimize risk in quality and delivery time
Various Types Of High Alloy Steel Flanges
Class 150 Alloy Steel Weld Neck Flange
Alloy Steel Slip On Flange
Class 300 AS Blind Flange
Alloy Steel Threaded Flange
Low Alloy Steel Orifice Flange
Alloy Steel Spectacle Blind Flange
High-alloy Steel RTJ Flanges
Chrome Moly Raised Face Flanges
Low-alloy Steel Reducing Flanges
Astm A182 Chromemoly Socket Weld Flange
Alloy Steel Lap Joint Flange
AS Plate Flange
Chrome Moly Square Flanges
ASTM A182 AS Flat Flanges
AS Anchor Flanges
Alloy Steel Forged Flanges
Chrome Moly Flanges
Low Alloy Steel Flanges
Chromoly flanges
Alloy Steel Pipe Flanges
AS Flanges
Alloy Steel Blind Flange and Low Alloy forged flanges for high pressure applications in Middle east
How To Select Proper Low Alloy Steel Flanges For Your Projects?
- Possibilities for weight reduction
- Cost
- Life Cycle Cost
- Recyclability
- Legislation
- standards, and approvals
- Corrosion resistance
- Mechanical strength
- Fabricability
- Physical properties
- Surface aspect
- Availability
ASTM A182 Chrome Moly Flange Pressure Capacity
| Types |
Pressure Capacity |
Pipe Sizes |
| Socket weld Flange |
High |
Small |
| Threaded Flange |
Low |
Small |
| Slip-on Flange |
Low |
All |
| Weld neck Flange |
High |
All |
| Blind Flange |
Very high |
All |
| Lap joint Flange |
Low |
All |
Tensile Strength of Alloy Steel Flanges
- alloy steel flanges has higher tensile strength as compared to carbon steel
- Tensile strength between 758 – 1882 MPa.
In-house Testing Facilities
- Hardness Test
- Flaring Test
- Mechanical Testing Such as Tensile of Area
- Micro and MacroTest
- Chemical Analysis
- Spectro Analysis
- Pitting Resistance Test
- Raw Material Test Reports
- Fumigation Certificates
- Heat Treatment Charts
- Material Traceability Records
- Packing List including weight, number of boxes
- Quality Assurance Plan (QAP)
- Guarantee Letter
Advantages Of ASTM A182 Alloy Steel Forged Flanges
- Lightweight
- High tensile strength
- Corrosion resistance
- Powerful parts
- Pitting resistance
- High temperature
Chrome Moly Pipe Flanges Subcategories
Low-alloy steel
High-strength low alloy steel
High-alloy steel
Microalloyed steel
Maraging steel
Common ASME SA182 High-Alloy Steel Flanges Elements
Check Alloy Steel Lap Joint Flanges and Threaded Flange weight chart, sizes and dimensions
Classify Of AS Flanges
Alloy steel flanges can further classify as
- High alloy: Alloying elements is greater than 5%
- Low alloy: Alloying elements is less than 5%
Alloy Steel Flanges Dimensions and weight chart
| NPS In MM |
O.D. |
Hub Top Diameter |
SL (SORF Length) |
WL (WNRF Length) |
R/F Diameter |
Bolt Holes Number |
Holes Diameter |
Circle of Bolts |
Inner Diameter |
| 25.4 |
4.75 |
0.84 |
1.25 |
2.38 |
1.38 |
4 |
0.88 |
3.25 |
0.88 |
| 76.2 |
5.12 |
1.05 |
1.38 |
2.75 |
1.69 |
4 |
0.88 |
3.50 |
1.09 |
| 25.4 |
5.88 |
1.32 |
1.62 |
2.88 |
2.00 |
4 |
1.00 |
4.00 |
1.36 |
| 279.4 |
6.25 |
1.66 |
1.62 |
2.88 |
2.50 |
4 |
1.00 |
4.38 |
1.70 |
| 279.4 |
7.00 |
1.90 |
1.75 |
3.25 |
2.88 |
4 |
1.12 |
4.88 |
1.95 |
| 50.8 |
8.50 |
2.38 |
2.25 |
4.00 |
3.63 |
8 |
1.00 |
6.50 |
2.44 |
| 533.4 |
9.62 |
2.88 |
2.50 |
4.12 |
4.13 |
8 |
1.12 |
7.50 |
2.94 |
| 76.2 |
10.50 |
3.50 |
– |
4.62 |
5.00 |
8 |
1.25 |
8.00 |
– |
| 101.6 |
12.25 |
4.50 |
– |
4.88 |
6.19 |
8 |
1.38 |
9.50 |
– |
| 127 |
14.75 |
5.56 |
– |
6.12 |
7.31 |
8 |
1.63 |
11.50 |
– |
| 152.4 |
15.50 |
6.63 |
– |
6.75 |
8.50 |
12 |
1.50 |
12.50 |
– |
| 203.2 |
19.00 |
8.63 |
– |
8.38 |
10.63 |
12 |
1.75 |
15.50 |
– |
| 254 |
23.00 |
10.75 |
– |
10.00 |
12.75 |
12 |
2.00 |
19.00 |
– |
| 304.8 |
26.50 |
12.75 |
– |
11.12 |
15.00 |
16 |
2.12 |
22.50 |
– |
| 355.6 |
29.50 |
14.00 |
– |
11.75 |
16.25 |
16 |
2.38 |
25.00 |
– |
| 406.4 |
32.50 |
16.00 |
– |
12.25 |
18.50 |
16 |
2.63 |
27.75 |
– |
| 457.2 |
36.00 |
18.00 |
– |
12.88 |
21.00 |
16 |
2.88 |
30.50 |
– |
| 508 |
38.75 |
20.00 |
– |
14.00 |
23.00 |
16 |
3.12 |
32.75 |
– |
| 609.6 |
46.00 |
24.00 |
– |
16.00 |
27.25 |
16 |
3.63 |
39.00 |
– |
Weight chart
NPS
(centimeter) |
DN |
O.D. |
Slip On and
Socket Weld Weight In pounds |
Weld Neck Weight In pounds |
| 1.27 |
15 |
120.7 |
3.96832 |
4.18878 |
| 1.905 |
20 |
130 |
5.29109 |
5.73202 |
| 2.54 |
25 |
149.4 |
7.93664 |
8.1571 |
| 3.175 |
32 |
158.8 |
8.81849 |
9.47988 |
| 3.81 |
40 |
177.8 |
12.1254 |
13.0073 |
| 5.08 |
50 |
215.9 |
22.48715 |
23.80992 |
| 6.35 |
65 |
244.3 |
30.64425 |
33.0693 |
| 7.62 |
80 |
241.3 |
25.57362 |
30.20333 |
| 10.16 |
100 |
292.1 |
43.43107 |
49.60401 |
| 12.7 |
125 |
349.3 |
70.32746 |
82.45289 |
| 15.24 |
150 |
381 |
90.60999 |
105.1605 |
| 20.32 |
200 |
469.9 |
155.8668 |
179.2358 |
| 25.4 |
250 |
546.1 |
222.667 |
262.35 |
| 30.48 |
300 |
609.6 |
293.215 |
346.126 |
| 35.56 |
350 |
641.4 |
337.307 |
396.832 |
| 40.64 |
400 |
704.9 |
407.855 |
478.403 |
| 45.72 |
450 |
787.4 |
568.793 |
643.75 |
| 50.8 |
500 |
857.3 |
698.865 |
798.073 |
| 60.96 |
600 |
1041.4 |
1336 |
1466.07 |
Size chart
NPS
(Inch) |
Bolt Holes No. |
Dia. Of Bolt Hole
(Inch)1) |
B.C. (Bolt Circle)
(Inch) |
OD Of Flange
(Inch) |
OD Of Pipe
(Inch) |
| 1/2 |
4 |
5/8 |
2-3/8 |
3-1/2 |
0.84 |
| 3/4 |
4 |
5/8 |
2-3/4 |
3-7/8 |
1.05 |
| 1 |
4 |
5/8 |
3-1/8 |
4-1/4 |
1.32 |
| 1-1/4 |
4 |
5/8 |
3-1/2 |
4-5/8 |
1.66 |
| 1-1/2 |
4 |
5/8 |
3-7/8 |
5 |
1.90 |
| 2 |
4 |
3/4 |
4-3/4 |
6 |
2.38 |
| 2-1/2 |
4 |
3/4 |
5-1/2 |
7 |
2.88 |
| 3 |
4 |
3/4 |
6 |
7-1/2 |
3.50 |
| 3-1/2 |
8 |
3/4 |
7 |
8-1/2 |
4.00 |
| 4 |
8 |
3/4 |
7-1/2 |
9 |
4.50 |
| 5 |
8 |
7/8 |
8-1/2 |
10 |
5.56 |
| 6 |
8 |
7/8 |
9-1/2 |
11 |
6.63 |
| 8 |
8 |
7/8 |
11-3/4 |
13-1/2 |
8.63 |
| 10 |
12 |
1 |
14-1/4 |
16 |
10.75 |
| 12 |
12 |
1 |
17 |
19 |
12.75 |
| 14 |
12 |
1-1/8 |
18-3/4 |
21 |
14.00 |
| 16 |
16 |
1-1/8 |
21-1/4 |
23-1/2 |
16.00 |
| 18 |
16 |
1-1/4 |
22-3/4 |
25 |
18.00 |
| 20 |
20 |
1-1/4 |
25 |
27-1/2 |
20.00 |
| 24 |
20 |
1-3/8 |
29-1/2 |
32 |
24.00 |
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