Alloy Steel Flanges manufacturer in India

What are the top 3 common manufacturing problems with alloy steel flanges?

Alloy steel flanges can suffer from inclusions or defects in the material. This can weaken the flange or cause structural issues.
Welding alloy steel spectacle blind flanges can be challenging due to the specific properties of the alloy.
Achieving precise dimensions in the manufacturing process can be difficult.

To avoid these manufacturing issues, it is crucial to work with a reputed Alloy Steel Flanges manufacturer in India like Vishal Steel.

What are some cost-saving tips when purchasing alloy steel weld neck flange?

Purchasing alloy steel weld neck flanges in larger quantities can lead to volume discounts.
Request quotes from multiple suppliers and opt for the most competitive price.
Opt for standard alloy steel plate flange sizes and specifications as customization will incur added cost.

How do you choose the right supplier for a alloy steel slip on flange?

Conduct thorough research to identify potential suppliers.
Verify that the supplier complies with relevant industry standards and can provide material certifications and test reports.
Check customer reviews and testimonials.
Compare prices from different suppliers and consider payment terms that suit your budget and needs.
Ensure the supplier provides adequate technical support and assistance on alloy steel slip on flange selection and inquiries.
Inquire about delivery timelines.
Consider the quality of their after sales service.

What types of sealing methods are used with chrome moly flanges?

Chrome moly flanges manufacturer in India recommends the following sealing methods:

Place a gasket made of suitable materials, between the AS flange faces to create a seal.
Using O-rings to provide a compression seal between the chromoly flanges faces.
Achieving a seal by bringing the flange faces into direct contact without using gaskets.

Table Of Content:

Alloy Steel Flanges Specifications
Alloy Steel Blind Flanges Price List
ASTM A182 Weld Neck Flange Finish Types
High Alloy Steel Flange Tensile Requirements
Chrome Moly Flanges Alloying Elements
Chromemoly Flange Density
Alloy Steel Flanges Grades
Chrome Moly Flanges Grades
Alloy Steel Slip On Flange Dimensions As Per ASME B16.5
ASTM A182 Flange Pressure Rating
Alloy Steel Lap Joint Flange Weight Chart
Alloy Steel Thread Flange Marking
ASTM A182 Flanges Face Types
Chrome Moly Flanges Wall Thicknes
Type Of ASTM A182 Alloy Steel Flange
Alloy Steel Threaded Flange Bolt Chart
Chromoly Flanges Application
Alloy Steel Flange Chemical Composition
ASTM A182 Mechanical Properties

Check Chrome Moly Flanges Specifications As per ASME B16.5

Alloy Steel Flanges Specifications

Common Size :

NPS: ½” to 48″
15NB – 1500NB
PN 2.5 – PN 400

Melting Point :

2597-2800°F
1425-1540°C

Benefits :

Low maintenance
Higher strength
Easily cleaned
Recyclable

Common Thickness :

SCH 10/ 20/ 40
SCH 60/ 80/ 100
SCH 120/ 140
SCH 160/ 180

Pressure :

Class 125, 150
Class 300, 400
Class 600, 900
Class 1500, 2500

Standard & Size :

ASME B16.5 : 1/2″ To 24″
ASME B16.47 : 24″ To 60″
ASME B16.36 : 2″ To 24″
ASME B16.48 : 2″ To 24″

Manufacturing Method :

Cast
Plate
Forged

Curie Temperature :

1390°F
770°C

No. Of Bolts Hole :

4 To 48

Supporting Material :

Ring Joint
Nuts
Gaskets
Bolts

Threads :

BSPP (Male & female)
MNPT (Male)
MPT/ BSPT (Female)
NPT/ BSP/ FPT

Surface Finish :

Smooth finish
Concentric serrated
Cold water finish
Spiral serrated

Faces Method :

M&F face (Male & female)
RF face (Raised)
RTJ face (Ring type joint)
FF face (Plain or flat)
T&G face (Tongue & groove)

Installations :

Sea water exchanger
Petrochemical plants
Nuclear energy sector

Uses :

Power generation plant
Petrochemical plants
Petrochemicals industry
Oil & gas plants
Nuclear energy sector
Sea water exchanger

Types Of Packaging :

Carton box
Plastic bag
Wooden case
Or custom as required

Logistics Way :

By Air
By Sea
Saudi Arabia = 7 to 8 day
UAE = 6 to 7 day
Oman = 5 to 6 days
Bahrain = 9 to 10 days
Qatar = 7 day

Services :

Drilling/ Electroplating
Threading/ Forging
Beveling end/ Polishing
Cutting/ Minor Fabrication
CNC machined/ Casting
Sand Blasting/ Rolling

Temperature :

1600 °C for 8-12 hours

Heat Capacity :

0.448 – 0.669 J/g-°C

Electrical Resistivity :

0.0000170 – 0.0000650 ohm-cm

Types Of Connection :

Threaded
Welding

Available Material:

Carbon steel
Nickel alloy
Titanium
Copper nickel
Alloy steel
Stainless steel

Testing :

MTC BS EN 10204 3.1/ 3.2
NACE MR0175
Third Party Inspection
100% Radiography Test

Modulus of Elasticity :

183 – 213 GPa

Thermal Conductivity

25.3 – 93.0 W/m-K

Low Alloy Steel Density

7.8 – 7.9 g/cc

For More Information Please Contact US

Alloy Steel Slip On Flange and Weld Neck Flange manufacturer offers Class 150 to 2500 Pressure Rating, View Finish Types & Price List

Alloy Steel Blind Flanges Price List

Size	Pressure Class	Price In US$ (Dollar) per unit	Price in UAE Dirham (AED) per unit
0.5"	150	US$ 24.65	90.54
0.75"	150	US$ 24.65	90.54
1"	150	US$ 24.65	90.54
1.25"	150	US$24.65	90.54
1.5"	150	US$ 24.65	90.54
2"	150	US$ 20.30	74.56
2.5"	150	US$ 35.55	130.58
3"	150	US$ 28.15	103.39
3.5"	150	US$ 40.78	149.78
4"	150	US$ 39.80	146.19
5"	150	US$ 55.15	202.57
6"	150	US$ 63.68	233.90
8"	150	US$ 105.45	387.32
10"	150	US$ 206.72	759.28
12"	150	US$ 312.72	1148.62

Size	Pressure Class	Price In US$ (Dollar) per unit	Price in UAE Dirham (AED) per unit
0.5"	300	US$ 38.49	141.37
0.75"	300	US$ 38.49	141.37
1"	300	US$ 38.49	141.37
1.25"	300	US$ 38.49	141.37
1.5"	300	US$ 38.49	141.37
2"	300	US$ 31.84	116.95
2.5"	300	US$ 56.87	208.88
3"	300	US$ 45.30	166.39
3.5"	300	US$ 69.54	255.42
4"	300	US$ 69.54	255.42
5"	300	US$ 125.77	461.95
6"	300	US$ 125.77	461.95
8"	300	US$ 195.15	716.79
10"	300	US$ 388.71	1427.73
12"	300	US$ 562.01	2064.26

Size	Pressure Class	Price In US$ (Dollar) per unit	Price in UAE Dirham (AED) per unit
0.5"	600	US$ 38.49	141.37
0.75"	600	US$ 38.49	141.37
1"	600	US$ 38.49	141.37
1.25"	600	US$ 38.49	141.37
1.5"	600	US$ 38.49	141.37
2"	600	US$ 31.84	116.95
2.5"	600	US$ 56.87	208.88
3"	600	US$ 45.30	166.39
3.5"	600	US$ 69.54	255.42
4"	600	US$ 69.54	255.42
5"	600	US$ 125.77	461.95
6"	600	US$ 125.77	461.95
8"	600	US$ 195.15	716.79
10"	600	US$ 388.71	1427.73
12"	600	US$ 562.01	2064.26

ASTM A182 Weld Neck Flange Finish Types

Types Of Finish	Finish Value	Diagram
Smootd Finish	63-125 AA
Concentric Serrated	125 and 500 micro inches
Stock Finish	125- to 250-μin
Spiral Serrated	Generated using a 90-deg tool
Serrated Finish	Required 30 to 55 grooves per inches

Supplier of ASTM A182 Forged Flanges and Lap Joint Flanges in FF-Flat Face, RF-Raised face, RTJ, Tongue and Groove, View Tensile Requirements

High Alloy Steel Flange Tensile Requirements

Grade	Tensile Strength (Mpa)
ASTM A182 F11	205
ASTM A182 F22	205
ASTM A182 F5	275
ASTM A182 F9	380
ASTM A182 F91	415

Chrome Moly Flanges Alloying Elements

Elements	Effects	Diagram
Chromium-Vanadium	Resistance to Corrosion
Vanadium	Increases strength, hardness.
Tungsten	Superior Hot-working
Nickel	Improves Corrosion Resistance
Molybdenum	Increases Red-hardness Properties.
Manganese	Improve Forgeability.
Cobalt	Higher Quenching Temperature
Chromium	Resistance To Corrosion

Chromemoly Flange Density

7.8 – 7.9 g/cc
7.75 and 8.05 g/cm3

Manufacturing Alloy Steel Forged Flanges in various types and sizes, We offer AS Plate Flange for low, medium and high temperature

Alloy Steel Flanges Grades

ASTM A707 L3 CL3 Flanges

Chrome Moly Flanges Grades

Grade Name	UNS Number
F11 Class 1	K11597
F11 Class 2	K11572
F11 Class 3	K11572
F22 Class 1	K21590
F22 Class 3	K21590
F5	K41545
F9	K90941

Alloy Steel Slip On Flange Dimensions As Per ASME B16.5

NPS	I.D.	O.D.	(Bolts Circle)	Raised Face (RF)	Hight For (H)	Raised Face WT	Thick1	B.H. Number (Bolt Hole)
1/2	0.88	3.50	2.38	.063	1.19	.62	.38	4
3/4	1.09	3.88	2.75	.063	1.50	.62	.44	4
1	1.36	4.25	3.12	.063	1.94	.69	.50	4
1-1/4	1.70	4.62	3.50	.063	2.31	.81	.56	4
1-1/2	1.97	5.00	3.88	.063	2.56	.88	.62	4
2	2.44	6.00	4.75	.063	3.06	1.00	.69	4
2-1/2	2.94	7.00	5.50	.063	3.56	1.12	.82	4
3	3.57	7.50	6.00	.063	4.25	1.19	.88	4
4	4.57	9.00	7.50	.063	5.31	1.31	.88	8
5	5.66	10.00	8.50	.063	6.44	1.44	.88	8
6	6.72	11.00	9.50	.063	7.56	1.56	.94	8
8	8.72	13.50	11.75	.063	9.69	1.75	1.06	8
10	10.88	16.00	14.25	.063	12.00	1.94	1.13	12
12	12.88	19.00	17.00	.063	14.38	2.19	1.19	12
16	16.16	23.50	21.25	.063	18.00	2.50	1.38	16
18	18.18	25.00	22.75	.063	19.88	2.69	1.50	16
20	20.20	27.50	25.00	.063	22.00	2.88	1.63	20
24	24.25	32.00	29.50	.063	26.12	3.25	1.82	20

Check Low Alloy Steel Socket Weld Flange Pressure Rating, Weight Chart, Chemical Composition Of Chromoly Spectacle Blind Flanges

ASTM A182 Flange Pressure Rating

maximum pressure for Alloy Steel Forged Flanges in PSI

Temp (°F)	(Class 150)	(Class 300)	(Class 600)	(Class 900)	(Class 2500)
-20 to 100	265	695	1390	2085	5785
200	260	680	1360	2035	5660
300	230	655	1305	1955	5435
400	200	640	1280	1920	5330
500	170	620	1245	1865	5180
600	140	605	1210	1815	5040
700	110	570	1135	1705	4730
800	80	510	1015	1525	4230
900	50	450	900	1350	3745
1000	20	165	330	495	1370

Alloy Steel Lap Joint Flange Weight Chart

Nominal Size Of Pipe (NPS)	Lap Joint(LOOSE)
½	1
¾	2
1	2
1¼	3
1½	3
2	5
2½	8
3	9
3½	11
4	13
5	15
6	19
8	30
10	43
12	64
14	105
16	140
18	160
20	195
22	245
24	275

Alloy Steel Thread Flange Marking

size
item
specification and number
pressure rating, with unit
OD
WT, with unit
bore when applicable
std schedule when applicable,
material specification

2"
FLANGE
THRF
ASME B16.5 #150
6" OD x 0.250"
152.4 Unit
Bore 15.500"
SCH 40
ASTM A182 F11

ASTM A182 Flanges Face Types

Face Types	Marking symbol	Diagram
Male Female Face	M&F
Tongue Groove Face	T & G
Lap Joint Face	LJRF
Ring Type Joint	RTJ
Flat Face	FF
Raised Face	RF

Chrome Moly Flanges Wall Thickness

NPS	Schedule 20	Schedule 40	Schedule 80
½	...	0.109	0.147
¾	...	0.113	0.154
1	...	0.133	0.179
1 ¼	...	0.14	0.191
1 ½	...	0.145	0.2
2	...	0.154	0.218
2 ½	...	0.203	0.276
3	-	0.216	0.3
3 ½	-	0.226	0.318
4	-	0.237	0.337
5	-	0.258	0.375
6	-	0.28	0.432
8	0.25	0.322	0.5
10	0.25	0.365	0.594
12	0.25	0.406	0.688
14	0.312	0.438	0.75
16	0.312	0.5	0.844
18	0.312	0.562	0.938
20	0.375	0.594	1.031
22	-	-	-
24	0.375	0.688	1.219
26	-	-	-
30	0.5	-	-

Why To Pay Extra If You Have Choice To Get Exact Sizes And Schedule In EN 1092-2 Alloy Steel Pipe Flanges and Alloy Steel Flanges manufacturer in India.

Type Of ASTM A182 Alloy Steel Flange

ASTM A182 Flanges

Pressure Class
Class 150 To 300
600LBS To 900LBS
1500# To 2500#

Low Alloy Steel Flanges

Type Of Flanges :
Weld neck/ slip-on
Socket weld/ threaded
Lap joint/ blind

Chromoly Flanges

Wall Thickness:
Schedule 10/ 20/ 40
SCH 60/ 80/ 100
Schedule 120/ 140 / 180

Alloy Steel Socket Weld Flange

Manufacturing Process :
Castings
Forgings
Plates

Alloy Steel Plate Flange

Dimensions
ASME B16.5
ASME B16.47
ANSI B16.5

Alloy Steel Lap Joint Flange

Face Type :
Ring type joint
Flat face
Raised face

Alloy Steel Blind Flange

Sizes :
1/2" to 24" Inch
12.7 to 609.6 MM
DN15 To DN1200

Alloy Steel Slip On Flange

EN Standard :
6Bar/ 10Bar
16Bar/ 25Bar
40Bar

Alloy Steel Weld Neck Flange

Supporting Material :
Gasket
Ring joint
Flange bolts

Alloy Steel Spectacle Blind Flange

Production Technique :
Forged
Heat treated
Machined

Alloy Steel Orifice Flanges

Coating :
Anti-rust paint
Zinc plated
Oil black paint

Alloy Steel Puddle Flange

Flanges Attached Process :
Welding
Brazing
Threading

Alloy Steel Threaded Flange

DIN Standard :
PN6/ PN10
PN16/ PN25
PN40/ PN64

Alloy Steel Raised Face Flange

Flange Bolts :
High strength bolts
Medium strength bolts
Low strength bolts

Alloy Steel RTJ Flange

Facing Finish :
Stock finish
Spiral serrated
Smooth finish

Alloy Steel Threaded Flange Bolt Chart

Size in Inch	Size in mm	Number of Bolts	Bolt Size UNC	RF Stud Length
1/2	15	4	1/2	55
3/4	20	4	1/2	65
1	25	4	1/2	65
1 1/4	32	4	1/2	70
2	50	4	5/8	85
3	80	4	5/8	90
4	100	8	5/8	90
5	125	8	3/4	95
6	150	8	3/4	100
8	200	8	3/4	110
10	250	12	7/8	115
12	300	12	7/8	120
16	400	16	1	135
18	450	16	1 1/8	145
20	500	20	1 1/8	160
24	600	20	1 1/4	170

Chromoly Flanges Application

Specialty Chemicals
Power Generation
Condensers
Chemical Equipment
Gas Processing
Pulp and Paper Industry

Sea Water Equipment
Pharmaceutical Equipment
Off-Shore Oil Drilling Companies
Petrochemicals
Heat Exchangers
Pharmaceuticals

Alloy Steel Flange Chemical Composition

PROPERTIES Of ALLOY STEEL FLANGES	LOW ALLOY STEEL FLANGES		MEDIUM ALLOY STEEL FLANGES
PROPERTIES Of ALLOY STEEL FLANGES	ASTM A182 F11 Flange (CL2)	ASTM A182 F22 Flange (CL3)	ASTM A182 F5 Flange	ASTM A182 F9 Flange
CARBON	0.10-0.20	0.05-0.15	0.15 (MAXIMUM)	0.15 (MAXIMUM)
MANGANESE	0.30-0.80	0.30-0.60	0.30-0.60	0.30-0.60
PHOSPHORUS (MAXIMUM)	0.04	0.04	0.03	0.03
SULFUR (MAXIMUM)	0.04	0.04	0.03	0.03
SILICON	0.50-1.00	0.50 (MAXIMUM)	0.50 (MAXIMUM)	0.50-1.00
NICKEL (MAXIMUM)	–	–	0.5	–
CHROMIUM	1.00-1.50	2.00-2.50	4.00-6.00	8.0-10.0
MOLYBDENUM	0.44-0.65	0.87-1.13	0.44-0.65	0.90-1.10
OPPER MA	–	–	–	–
COLUMBIUM (MAXIMUM)	–	–	–	–
VANADIUM (MAXIMUM)	–	–	–	–

ASTM A182 Mechanical Properties

Element Of Alloy Steel Forged Flanges	Low alloy steel flanges		Medium alloy steel flanges
Element Of Alloy Steel Forged Flanges	F11 (CL2)	F22 (CL3)	F5	F9
TENSILE PROPERTIES PSI (MPA)	70,000 (485)	75,000 (515)	70,000 (485)	85,000 (585)
HARDNESS (HB) (MAXIMUM)*	143 ~ 207	156 ~ 207	143 ~ 217	179 ~ 217
YIELD PROPERTIES PSI (MINIMUM)	40,000 (275)	45,000 (310)	40,000 (275)	55,000 (380)
ELONGATION 2” % (MINIMUM)	20	20	20	20
REDUCTION AREA % (MINIMUM)	30	30	35	40

What is the purpose of coating AS flanges and how does it enhance their performance?

The purpose of coating AS pipe flanges is to enhance their performance and provide additional protection against various environmental factors. They also

Create a barrier that shields the flanges from corrosive substances.
Improve the resistance of the alloy steel reducing flange to wear and abrasion.
Enhance the ability of the alloy steel RTJ flange to withstand exposure to chemicals and aggressive substances.
Improve the appearance of the alloy steel orifice flange and provide a clean, uniform finish.

What factors should be considered when selecting a alloy steel blind flange based on it size?

The AS BLRF flange size should match the size of the pipe it will be installed on.
Consider the pressure rating of the alloy steel blind flange to ensure it can withstand the maximum pressure of the piping system.
Verify that the flange has the appropriate facing type to match the mating flange face.

What are the different testing requirements for exporting alloy steel lap joint flanges?

Verify that the alloy steel lap joint flanges meet the specified dimensions and tolerances.
Provide material test reports to confirm the high alloy steel flanges grade and composition.
Conduct NDT methods to detect any defects or flaws.
Perform pressure testing to check the ability of the flange to withstand the designated pressure.
Conduct a visual inspection for visible surface defects or irregularities.

What are the advantages of using a alloy steel pipe flange?

Stength, durability, resistance to corrosion and temperature, versatality and cost effectiveness are some of the primary advantages of using low alloy steel flanges.

Vishal Steel Forging Factory In India: