AISI 4130 / SAE 4130 Flanges
AISI 4130 Pipe Flanges, SAE 4130 Lap Joint Flanges, AISI 4130 Forged Flanges Manufacturer, Alloy Steel AISI 4130 Ring Types Joint Flanges, AISI 4130 Slip on Flanges, ASME B16.5 Pipe Flanges, AISI 4130 RTJ Flange Supplier in India.
Table of Content
- Manufacturer & Supplier of AISI 4130 Flanges
- AISI 4130 Flange Specification
- SAE 4130 Flange Chemical Composition Chart
- Types Of AISI 4130 Flange
- Mechanical Behavior of AISI 4130 60k Flanges
- Pressure rating of Alloy Steel AISI 4130 Flange
- AISI 4130 Alloy Steel Flanges Dimensions
- Weight chart of SAE 4130 Flanges
- Heat Treatment for AISI 4130 Alloy Steel Flanges
- AISI 4130 Flanges Schedule Chart
- Application of AISI 4130 Alloy Steel Flanges
- Frequently Asked Questions About AISI 4130 Flanges
SAE 4130 or AISI 4130 is an alloy composed of 100% austenitic & is applied as filler metal in the welding of steel with mild and low-alloy steels. AISI 4130 flanges are produced using the content of material composition that contains 97 percent of iron, plus carbon, manganese, silicon, phosphorus, sulfur, molybdenum, nickel and chromium. These flanges are very strong and wear and corrosion resistant because of the addition of chromium and molybdenum as strengthening agents.
These AISI 4130 flanges have outstanding mechanical characteristics, with minimum tensile strength of 560MPa, as well as minimum yield strength of 460MPa. These flanges have a lower density of 7.85 g/cm 3 which makes them lighter compared to other materials. Melting point is also very high and this increases their longevity in extreme conditions. Austenitizing is the most prevalent procedure to be used to machine AISI 4130 flanges as it converts micro-constituents to austenite. The precise temperature of this process depends on the chemical composition, section size and method of cooling. AISI 4130 flanges are forged and then austenitized at temperatures over 1600 o F to attain the desired strength. SAE 4130 Flanges are also weldable on quenched and tempered steels such as ballistic steels. AISI 4130 flanges can be easily machined using the conventional methods, and they are best machinable when in a normalized and tempered state.
Manufacturer & Supplier of AISI 4130 Flanges
Kalpataru Piping Solutions deals in manufacturing, supplying and exportation of Alloy Steel Flanges with wide variety of AISI 4130 flanges. We are able to supply AISI 4130 Steel threaded flanges, AISI 4130 blind flanges, AISI 4130 high shaft flanges, AISI 4130 flat flanges, AISI 4130 gate flanges and AISI 4130 loose flanges of different types and sizes. Our AISI4130 flanges are produced under API 6A 60K flange specifications, AISI 4130 flanges of various sizes; 1/2 inch through 48 inch nominal bore, pressure rating of PN6 to PN64 and are designed to meet the most demanding performance.
At Kalpataru Piping Solutions, we believe that besides offering high quality flanges, we will also offer flanges that are easy to use, have outstanding appearance of weld and high weld metal integrity. Our Threaded Flanges, AISI 4130 and UNS G41300 Socket Weld Flanges, are specifically designed to be used in interlayers in hard-facing applications, and are typically used in rutile-coated electrodes to join and coating steels. These products are exceptionally resistant to caustic alkalis even in the molten form and are specifically applicable to high-sulfur and phosphorus steels. The quality that we are bound to uphold is that all the AISI 4130 flanges will be precise to the application of different fields.
Specification Of Alloy Steel 4130 60k Blind Flange, Check AS 4130 Forging Pipe Flange Chemical Composition.
AISI 4130 Flange Specification
| Specification | AISI 4130 Flange |
|---|---|
| Schedule | SCH 5S, SCH 10, SCH 40, SCH 80, SCH 120, SCH 160, SCH 180 To XXS |
| Manufacturer Pressure Class | Class 150 (lb) up to 24″ Class 300 (lb) up to 20″ Class 600 (lb) up to 20″ Class 900 (lb) up to 16″ Class 1500 (lb) up to 10″ Class 2500 (lb) up to 8″ |
| Application | Bitumen upgraders Heavy oil refineries. Nuclear power (mostly seamless). Petrochemicals and acids. |
| Coating | Anti-rust Paint/ Zinc Plated/ Oil Black Paint/ Yellow Transparent/ Cold and Hot Dip Galvanized |
| Forging Methods | Casting/ Forging/ Rolling/ Cutting |
| Production Technique | Forged/ Heat treated and machined |
| Dimensions And Standard | EN 1092-1/ EN 1092-2/ API/ ISO/ JIS/ GOST/ PN |
| Manufacturer Length | NPS 1⁄₂” To NPS 48” |
| Face Type | RTJ/ FF/ RF/ lap joint/ Male & Female / Tongue & Groove. |
| Most common types of | Weld Neck Ring Flanges (WNRF) Blind Ring Flanges (BLRF) Threaded Ring Flanges Lap Joint Ring Flanges (LJRF) Slip-On Ring Flanges (SORF) Socket Weld Ring Flanges (SWRF) Ring Type Joint Flanges (RTJF) |
| Supporting Material | Gasket/ Ring Joint/ Flange Bolts |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| Flange Test | Hydrostatic testing machine/ UI trasonic flaw detector/ X-ray detector/ Direct-reading Spectrograph/ Magnetic particle detector |
| Flange Equipment | Pushing Machine/ electric bevelling machine/ Press machine/ Bending machine/ Sand-blasting machine etc |
| Stainless Steel Flanges Manufacturer In India | Forged/ Threaded/ Screwed / Plate |
SAE 4130 Flange Chemical Composition Chart
| AISINumber | Si | C | P Max. | Mn | S Max. | Ni | Cr | Mo |
|
AISI 4130
|
0.20/0.35
|
0.28/0.33
|
0.035
|
0.40/0.60
|
0.040
|
—
|
0.80/1.10
|
0.15/0.25
|
Types Of AISI 4130 Flange
4130 Chromoly Slip On Flange
SAE 4130 Weld Neck Flange
G41300 Blind Flange
UNS G41300 Plate Flange
4130 Alloy Steel Spectacle Blind Flanges
4130 Chromoly Steel Threaded Flange
AISI 4130 Steel Socket Weld Flange
4130 Alloy Long Weld Neck Flange
4130 Chrome Moly Lap Joint Flange
A182 Gr 4130 Orifice Flanges
AISI 4130 60k Reducing Flange
DIN 1.7218 Flat Face Flange
Mechanical Behaviour of AISI 4130 60k Flanges
| Properties | Imperial | Metric |
| Elongation at break (in 50 mm) | 21.50% | 21.50% |
| Tensile strength, ultimate | 81200 psi | 560 MPa |
| Hardness, Brinell | 217 | 217 |
| Tensile strength, yield | 66700 psi | 460 MPa |
| Hardness, Rockwell B (Converted from Brinell hardness) | 95 | 95 |
| Modulus of elasticity | 27557-30458 ksi | 190-210 GPa |
| Hardness, Rockwell C (Converted from Brinell hardness, value below normal HRC range, for comparison purposes only.) | 17 | 17 |
| Bulk modulus (Typical for steel) | 20300 ksi | 140 GPa |
| Hardness, Knoop (Converted from Brinell hardness) | 240 | 240 |
| Shear modulus (Typical for steel) | 11600 ksi | 80 GPa |
| Machinability (Annealed and cold drawn. Based on 100% machinability for AISI 1212 steel.) | 70 | 70 |
| Poissons ratio | 0.27-0.30 | 0.27-0.30 |
| Reduction of area | 59.60% | 59.6 |
| Hardness, Vickers (Converted from Brinell hardness) | 228 | 228 |
Pressure rating of Alloy Steel AISI 4130 Flange
| Max. Working Pressure | 2,000 PSI | 3,000 PSI | 5,000 PSI | 10,000 PSI | 15,000 PSI | 20,000 PSI |
| Test Pressure | 3,000 PSI | 4,500 PSI | 7,500 PSI | 15,000 PSI | 22,500 PSI | 30,000 PSI |
| Product Specification Levels | 1, 2, 3 & 4 | 1, 2, 3 & 4 | 1, 2, 3 & 4 | 1, 2, 3 & 4 | 1, 2, 3 & 4 | 1, 2, 3 & 4 |
| API Temperature Rating | K (-60 Deg C) | K (-60 Deg C) | K (-60 Deg C) | K (-60 Deg C) | K (-60 Deg C) | K (-60 Deg C) |
| To | To | To | To | To | To | |
| Y (+345 Deg C) | Y (+345 Deg C) | Y (+345 Deg C) | Y (+345 Deg C) | Y (+345 Deg C) | Y (+345 Deg C) |
AISI 4130 Alloy Steel Flanges Dimensions
| NPS | Flanges ID (inch) | Flanges OD (inches) | ||||
| Alloy Steel Class 150 | Alloy Steel Class 300 | Alloy Steel Class 400 | Alloy Steel Class 600 | Alloy Steel 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 |
Weight chart of SAE 4130 Flanges
|
Pipe Normal Diam. |
O.D. Flange |
Thk. Of Flange Min |
Diam.
of
Hub |
Diameter of Raised Face |
Length Hub.Y |
Thread Length |
Diam.
of Bolt
Circle |
Diam.
of Bolt
Holes |
Number
of Bolts |
Diam. of
Bolts
(inch) |
KG |
LB |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
inch |
dn |
O |
C |
X |
G |
Y |
T |
BC |
BH |
BN |
BD |
||
|
1/2″ |
15 |
89.00 |
11.20 |
30.20 |
35.10 |
15.70 |
15.70 |
60.50 |
15.80 |
4 |
1/2″ |
0.4 |
0.9 |
|
3/4″ |
20 |
98.50 |
12.70 |
38.10 |
42.90 |
15.70 |
15.70 |
69.90 |
15.80 |
4 |
1/2″ |
0.7 |
1.5 |
|
1″ |
25 |
108.00 |
14.20 |
49.30 |
50.80 |
17.50 |
17.50 |
79.30 |
15.80 |
4 |
1/2″ |
0.8 |
1.8 |
|
1-1/4″ |
32 |
117.50 |
15.70 |
58.70 |
63.50 |
20.60 |
20.60 |
88.90 |
15.80 |
4 |
1/2″ |
1.2 |
2.6 |
|
1-1/2″ |
40 |
127.00 |
17.50 |
65.00 |
73.20 |
22.40 |
22.40 |
98.60 |
15.80 |
4 |
1/2″ |
1.5 |
3.3 |
|
2″ |
50 |
152.50 |
19.10 |
77.70 |
91.90 |
25.40 |
25.40 |
120.70 |
19.10 |
4 |
5/8″ |
2.3 |
5.1 |
|
2-1/2″ |
65 |
178.00 |
22.40 |
90.40 |
104.60 |
28.40 |
28.40 |
139.70 |
19.10 |
4 |
5/8″ |
3.7 |
8.1 |
|
3″ |
80 |
190.50 |
23.90 |
108.00 |
127.00 |
30.20 |
30.20 |
152.40 |
19.10 |
4 |
5/8″ |
4.1 |
9 |
|
3-1/2″ |
90 |
216.00 |
23.90 |
122.20 |
139.70 |
31.80 |
31.80 |
177.80 |
19.10 |
8 |
5/8″ |
5.1 |
11.2 |
|
4″ |
100 |
228.50 |
23.90 |
134.90 |
157.20 |
33.30 |
33.30 |
190.50 |
19.10 |
8 |
5/8″ |
5.9 |
13 |
|
5″ |
125 |
254.00 |
23.90 |
163.60 |
185.70 |
36.60 |
36.60 |
215.90 |
22.40 |
8 |
3/4″ |
7 |
15.4 |
|
6″ |
150 |
279.50 |
25.40 |
192.00 |
215.90 |
39.60 |
39.60 |
241.30 |
22.40 |
8 |
3/4″ |
8.4 |
18.5 |
|
8″ |
200 |
343.00 |
28.40 |
246.10 |
269.70 |
44.50 |
44.50 |
298.50 |
22.40 |
8 |
3/4″ |
13 |
28.6 |
|
10″ |
250 |
406.50 |
30.20 |
304.80 |
323.90 |
49.30 |
49.30 |
362.00 |
25.40 |
12 |
7/8″ |
18 |
39.5 |
|
12″ |
300 |
482.50 |
31.80 |
365.30 |
381.00 |
55.60 |
55.60 |
431.80 |
25.40 |
12 |
7/8″ |
29 |
64 |
|
14″ |
350 |
533.50 |
35.10 |
400.10 |
412.80 |
57.20 |
57.20 |
476.30 |
28.50 |
12 |
1″ |
39 |
86 |
|
16″ |
400 |
597.00 |
36.60 |
457.20 |
469.90 |
63.50 |
63.50 |
539.80 |
28.50 |
16 |
1″ |
47 |
103 |
|
18″ |
450 |
635.00 |
39.60 |
505.00 |
533.40 |
68.30 |
68.30 |
577.90 |
31.80 |
16 |
1 1/8″ |
57 |
126 |
|
20″ |
500 |
698.50 |
42.90 |
558.80 |
584.20 |
73.20 |
73.20 |
635.00 |
31.80 |
20 |
1 1/8″ |
76 |
167 |
|
24″ |
600 |
813.00 |
47.80 |
663.40 |
692.20 |
82.60 |
82.60 |
749.30 |
35.10 |
20 |
1 1/4″ |
97 |
214 |
Heat Treatment for AISI 4130 Alloy Steel Flanges
| Heat Treatment | Temperature Range | Purpose |
|---|---|---|
| Annealing | 427°C To 454°C | Relieves stress |
| Normalizing | 871°C To 899°C | Improves toughness |
| Quenching and Tempering | 1500°F To 1600°F | Increases hardness |
| Post-Weld Heat Treatment | 1100°F To 1300°F | Relieves welding stresses |
AISI 4130 Flanges Schedule Chart
| Pipe Size – Pipe Flanges | Flange Schedule/Class | Flange Material | Flange Connection Type | Max. Pressure |
|---|---|---|---|---|
| 1/2″ | ASME B16.5 Class 150 | AISI 4130 Flanges | FNPT | 150 psi |
| 1/2″ | ASME B16.5 Class 150 | AISI 4130 Flanges | Socket Weld | 275 psi |
| 1/2″ | ASME B16.5 Class 150 | AISI 4130 Flanges | Welded | 150 psi |
| 3/4″ | ASME B16.5 Class 150 | AISI 4130 Flanges | FNPT | 150 psi |
| 3/4″ | ASME B16.5 Class 150 | AISI 4130 Flanges | Socket Weld | 275 psi |
| 1-1/4″ | ASME B16.5 Class 150 | AISI 4130 Flanges | Socket Weld | 275 psi |
| 1-1/2″ | ASME B16.5 Class 150 | AISI 4130 Flanges | Socket Weld | 275 psi |
| 2″ | ASME B16.5 Class 150 | AISI 4130 Flanges | FNPT | 150 psi |
| 2″ | ASME B16.5 Class 150 | AISI 4130 Flanges | Socket Weld | 275 psi |
| 2-1/2″ | ASME B16.5 Class 150 | AISI 4130 Flanges | Socket Weld | 275 psi |
| 3″ | ASME B16.5 Class 150 | AISI 4130 Flanges | Socket Weld | 275 psi |
| 4″ | ASME B16.5 Class 150 | AISI 4130 Flanges | FNPT | 150 psi |
| 4″ | ASME B16.5 Class 150 | AISI 4130 Flanges | Socket Weld | 275 psi |
| 1/2″ | ASME B16.5 Class 300 | AISI 4130 Flanges | Slip On | 720 psi |
| 1/2″ | ASME B16.5 Class 300 | AISI 4130 Flanges | Slip On | 720 psi |
| 1″ | ASME B16.5 Class 300 | AISI 4130 Flanges | Slip On | 720 psi |
| 1″ | ASME B16.5 Class 300 | AISI 4130 Flanges | Slip On | 720 psi |
| 1-1/4″ | ASME B16.5 Class 300 | AISI 4130 Flanges | FNPT | 720 psi |
| 1-1/4″ | ASME B16.5 Class 300 | AISI 4130 Flanges | Slip On | 720 psi |
| 1-1/2″ | ASME B16.5 Class 300 | AISI 4130 Flanges | Slip On | 720 psi |
| 1-1/2″ | ASME B16.5 Class 300 | AISI 4130 Flanges | Slip On | 720 psi |
| 2″ | ASME B16.5 Class 300 | AISI 4130 Flanges | Slip On | 720 psi |
| 2″ | ASME B16.5 Class 300 | AISI 4130 Flanges | Slip On | 720 psi |
| 2-1/2″ | ASME B16.5 Class 300 | AISI 4130 Flanges | Slip On | 720 psi |
| 2-1/2″ | ASME B16.5 Class 300 | AISI 4130 Flanges | Slip On | 720 psi |
| 3″ | ASME B16.5 Class 300 | AISI 4130 Flanges | Slip On | 720 psi |
| 3″ | ASME B16.5 Class 300 | AISI 4130 Flanges | Slip On | 720 psi |
| 4″ | ASME B16.5 Class 300 | AISI 4130 Flanges | Slip On | 720 psi |
| 4″ | ASME B16.5 Class 300 | AISI 4130 Flanges | Slip On | 720 psi |
Application of AISI 4130 Alloy Steel Flanges
- Food & Beverage
- Paper Industry
- Pharmaceutical
- Hospital Equipment
- Textiles
- Dairy
- Aircraft
- Chemicals
- Others Parts in Machinery
