Carbon Steel Flanges manufacturer in India

How do you verify the authenticity of the carbon steel flanges manufacturer?

Research on the manufacturer along with their company background, years of operation and reputation in the industry.
Check if the manufacturer holds relevant certifications and complies with industry standards.
Look for customer reviews and feedback about the products and services offered by the given carbon steel flanges manufacturer in India.
Visit the facility to assess its production capabilities and quality control processes.
Verify their business registration and other legal documents to ensure their legitimacy.

How do carbon steel pipe flanges compare to other flanges materials in terms of cost?

Carbon steel pipe flanges are more cost effective than flanges made from other materials like stainless steel or exotic alloys. CS pipe flanges is widely available and has a lower material cost which makes CS socket weld flanges a popular choice for different applications.

What are the 5 common complaints of buyers about carbon steel forged flanges?

Carbon steel forged flanges not meeting the required dimensions, pressure ratings or material specifications.
Surface defects, rough finishes or scratches on the flanges.
Issues with the quality of welds.
Fluctuations in the quality of the batches lead to inconsistency in the performance of the forged CS raised face flange.
CS Flanges corroding prematurely or not performing well in corrosive environments.

What is the role of pressure in the performance of a CS flange?

Pressure plays a crucial role in the performance of CS pipe flanges. It provides a secure and leak tight connection between two sections of piping or equipment. CS flanges manufacturer in India focus on the ability of the flange to withstand pressure. This will help maintain the integrity and safety of the system.

Table Of Content:

Carbon Steel Flange Specifications
Carbon Steel Flanges Price List
Common Type Of Carbon Steel Flange Coating
Manufacturing Standards Of CS Forged Steel Flanges
CS Weld Flanges Manufacturing Process
CS Steel Flange Carbon Content
Carbon Steel SORF Flange Gasket
Types Of Coatings For CS Flange
Carbon Steel Pipe Flange Types
Carbon Steel Flanges Grades
Gasket For Carbon Steel Flange
Class 150 Carbon Steel Flange Pressure Rating
Carbon Steel 300# Flange Rating
600# carbon steel flange rating
Class 900 CS Pipe Flange Pressure Rating
Class 1500 carbon steel flange rating chart
Class 2500 Carbon Steel Flange Pressure Rating

Carbon Steel Blind Flange Dimensions
Carbon Steel Slip On Flange Weight Chart
CS Weld Neck (WNRF) Flange Weight
Carbon Steel Blind Flange Weight Chart
Carbon Steel Slip On Flanges Dimensions
En 1092-1 CS PN16 Flange Dimensions Chart
Carbon Steel Forged Flanges Bolt Chart
Carbon Steel Pipe Flanges Marking
Carbon Steel Weld Neck Flange Dimensions
Killed CS Flanges Face Types
CS SORF Flange Standard
Carbon Flange Chemical Composition
Low Temp Flanges Mechanical Properties

Low Temperature Carbon Steel Slip On and Blind Flange supplier in Mumbai

Carbon Steel Flange 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

Working Temperature :

427°C
800°F

Forging Temperature :

1230°C

Electrical Resistivity :

0.0000720 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

Germany Standards (DIN) :

DIN 2573
DIN 2576
DIN 2501
DIN 2502
DIN 2543
DIN 2631
DIN 2633

EN Standard :

EN 1092-2
EN 1092-1

JIS Standard:

JIS B2311
JIS B2220

BS Standard :

BS 4504
BS 10

ISO Standard :

ISO 160
ISO 6164

Forging Material:

Carbon Steel

For More Information Please Contact US

Check Carbon Steel Weld Neck Flanges Price List as per ANSI B16.47 Series A, ASME B16.5, EN 1092-1

Carbon Steel Flanges Price List

Size	Weight Per Piece	Price In US$ (Dollar) per unit	Price in UAE Dirham (AED) per unit
15mm	0.49	US $1.90	6.98
20mm	0.66	US $2.52	9.26
25mm	0.99	US $2.99	10.98
32mm	1.29	US $2.81	10.32
40mm	1.70	US $3.27	12.01
50mm	2.77	US $4.95	18.18
65mm	4.22	US $6.75	24.79
80MM	5.23	US $8.60	31.59
100mm	7.78	US $12.65	46.46
125mm	9.20	US $15.48	56.86
150mm	11.88	US $20.72	76.10
200mm	20.92	US $32.85	120.66
250mm	30.86	US $51.25	188.24
300mm	45.89	US $72.99	268.09
350mm	62.39	US $90.08	330.87
400mm	80.97	US $114.91	422.07
450mm	99.54	US $167.69	615.93
500mm	129.55	US $204.935	752.73
600mm	197.65	US $316.715	1163.30

Supplier of Carbon Steel Forged Flanges in Plate, Backing, Companion, Threaded, Stub End Flange Types in Mumbai, view Coating and Manufacturing Standards

Common Type Of Carbon Steel Flange Coating

Types Of Coating	Temperature	Wall Thickness	Color Of Coating
Anti rust coating	10°C – 30°C	150 μm outdoors and 125 μm indoors	Mid grey, red oxide, and black
PE coating	Up to 80 °C	1,8 mm to 4,7 mm	Black or milky-white
PTFE coating	+260°C	10 to 100 microns	Black, grey
Zinc coating	420°C to 650°C	Between 1.4 and 3.9 mils	Dull gray
FBE coating	225° to 245°C	Between 250 and 500 micrometers	Green/Aqua, Blue and Red

Manufacturing Standards Of CS Forged Steel Flanges

Standard	Class	Size In Inch	Application
DIN flange	PN6 To PN40	1/2″ To 48 Inch	High & low pressure
Australian flange	150 to 2500	1/2″ To 48 Inch	Low pressure
Korean flange	150 to 300	1/2″ To 80 Inch	–
Japanese standard flange	150 to 2500	3/8 to 60 Inch	Low pressure
EN 1092-1/2	PN 2.5 to PN 400	3/8″ to 80 Inch	Lower pressure
BS 3293	150 to 600	26″ To 48 Inch	Lower pressure
MSS SP 44	150 to 900	22″ To 48 Inch	High pressure
Awwa C207	Class B/D/E/F	4″ To 144 Inch	High pressure
ASME B16.5	150 to 2500	1/4″ to 24 Inch	High pressure
ASME B16.36	300 to 2500	1/4″ to 24 Inch	High pressure
ASME B16.47	150 to 900	26″ to 60 Inch	High pressure
ASME B16.48	150 to 2500	1/4″ to 24 Inch	High & low pressure

CS Weld Flanges Manufacturing Process

Forged

Plate

Cast

CS Steel Flange Carbon Content

High Carbon	Ultra High Carbon	Low Carbon	Medium Carbon
0.8-2.0%	1.25% to 2.0%	0.005% to 0.3%.	0.3 to 0.8%

Carbon Steel SORF Flange Gasket

Gasket	Uses
RTJ Gasket	High temperature applications
Spiral wound Flange Gasket	Low temperature
Full Face Flange Gasket	Water Works Service (Class 150 & 300)
Ring Gasket	RF CS flange

Types Of Coatings For CS Flange

There are several types of coatings to protect carbon steel pipe flange from rusting or corrosion:

Alloy material coated (Lined or Clad)
Anti-rust painting
Oil Varnished
Electric zinc coated (White or yellow zinc)

Carbon Steel Flanges Grades

ASTM A105 Flange

ASTM A350 LF1 Flanges

ASTM A350 LF2 Flanges

ASTM A350 LF3 Flanges

ASTM A350 LF5 Flanges

ASTM A350 LF6 Flanges

ASTM A350 LF 787 Flanges

ASTM A181 Class 60 Flanges

ASTM A181 Class 70 Flanges

You will find the low cost in comparison to other Carbon Steel Flanges manufacturers
Ready stock of CS Flanges available for USA, Europe, UAE, China and Malaysia in standard sizes and pressure class, give a call for custom sizes, get a free sample now!

Gasket For Carbon Steel Flange

Gaskets Types	Diagram
PTFE Gasket
Oval Ring Gasket
Spiral Wound Gaskets
Metal Jacketed Gasket
RTJ Gaskets
RF Gaskets
FF Gaskets

Looking for CS Flanges manufacturers in India? A Complete Range Of Carbon Steel Blind Flange in Raised/ Flat Face/ RTJ Face Types, Check CS Socket Weld Flange Pressure Rating & Weight Chart

Class 150 Carbon Steel Flange Pressure Rating

Temperature	Class 150
-20 to 100	285
200	260
300	230
400	200
500	170
600	140
650	125
700	110
750	95
800	80
850	65
900	50
950	35
1000	20

Carbon Steel 300# Flange Rating

Temperature	Class 300
-20 to 100	740
200	680
300	655
400	635
500	605
600	570
650	550
700	530
750	505
800	410
850	320
900	230
950	135
1000	85

600# carbon steel flange rating

Temperature	Class 600
-20 to 100	1,480
200	1,360
300	1,310
400	1,265
500	1,205
600	1,135
650	1,100
700	1,060
750	1,015
800	825
850	640
900	460
950	275
1000	170

Class 900 CS Pipe Flange Pressure Rating

Temperature	900
-20 to 100	2,220
200	2,035
300	1,965
400	1,900
500	1,810
600	1,705
650	1,650
700	1,590
750	1,520
800	1,235
850	955
900	690
950	410
1000	255

Class 1500 Carbon Steel Flange Rating Chart

Temperature	1500
-20 to 100	3,705
200	3,395
300	3,270
400	3,170
500	3,015
600	2,840
650	2,745
700	2,655
750	2,535
800	2,055
850	1,595
900	1,150
950	685
1000	430

Class 2500 Carbon Steel Flange Pressure Rating

Temperature	2500
-20 to 100	6,170
200	5,655
300	5,450
400	5,280
500	5,025
600	4,730
650	4,575
700	4,425
750	4,230
800	3,430
850	2,655
900	1,915
950	1,145
1000	715

Carbon Steel Blind Flange Dimensions

NPS in Inch	WT Of (B)	RF Diameter Of (C)	(D) (Bolts Circle Diameter)	# Pipe Flange Bolts Holes (B.H.)	Bolt Holes Diameter	Weight In Kilogram
1/2	7/16	1-3/8	2-3/8	4	5/8	2
3/4	1/2	1-11/16	2-3/4	4	5/8	2
1	9/16	2	3-1/8	4	5/8	2
1-1/2	11/16	2-7/8	3-7/8	4	5/8	3
2	3/4	3-5/8	4-3/4	4	3/4	4
2-1/2	7/8	4-1/8	5-1/2	4	3/4	7
3	15/16	5	6	4	3/4	9
3-1/2	15/16	5-1/2	7	8	3/4	13
4	15/16	6-3/16	7-1/2	8	3/4	17
5	15/16	7-5/16	8-1/2	8	7/8	20
6	1	8-1/2	9-1/2	8	7/8	27
8	1-1/8	10-5/8	11-3/4	8	7/8	47
10	1-3/16	12-3/4	14-1/4	12	1	67
12	1-1/4	15	17	12	1	123
14	1-3/8	16-1/4	18-3/4	12	1-1/8	139
16	1-7/16	18-1/2	21-1/4	16	1-1/8	187
18	1-9/16	21	22-3/4	16	1-1/4	217
20	1-11/16	23	25	20	1-1/4	283
24	1-7/8	27-1/4	29-1/2	20	1-3/8	415

Carbon Steel Slip On Flange Weight Chart

DN (mm)	SOW SW
15	0.7
20	1.3
25	1.5
32	2
40	3
50	3.6
65	5.3
80	7
90	8.8
100	14.5
125	24.4
150	28.7
200	43.4
300	84.2
400	142.0
500	220.0
600	312.0

CS Weld Neck (WNRF) Flange Weight

NPS (Inches)	WN
1/2	0.9
3/4	1.5
1	1.8
1 1/4	2.5
2	4.4
3	8.5
3 1/2	10.7
4	17.4
5	29.2
6	34.9
8	53.9
10	86.5
12	103.0
14	122.0

Carbon Steel Blind Flange Weight Chart

NPS (Inches)	BLIND
1/2	0.8
3/4	1.3
1	1.6
1 1/4	2.2
2	4.2
2 1/2	6.1
3	8.4
3 1/2	11
4	17.3
5	29.4
6	36.1
8	58.9
10	97.5
12	124
14	151
16	214
18	272

Carbon Steel Slip On Flanges Dimensions

NPS	(Inner Daimeter)	(Outer Diameter)	(Bolts Circle)	Raised Face (RF)	Hight For (H)	Raised Face WT	Thick1	B.C. For (Bolts Holes)	B.H. Number (Bolt Hole)
1/2	0.88	3.50	2.38	.063	1.19	.62	.38	.62	4
3/4	1.09	3.88	2.75	.063	1.50	.62	.44	.62	4
1	1.36	4.25	3.12	.063	1.94	.69	.50	.62	4
1-1/4	1.70	4.62	3.50	.063	2.31	.81	.56	.62	4
2	2.44	6.00	4.75	.063	3.06	1.00	.69	.75	4
2-1/2	2.94	7.00	5.50	.063	3.56	1.12	.82	.75	4
3	3.57	7.50	6.00	.063	4.25	1.19	.88	.75	4
4	4.57	9.00	7.50	.063	5.31	1.31	.88	.75	8
5	5.66	10.00	8.50	.063	6.44	1.44	.88	.88	8
6	6.72	11.00	9.50	.063	7.56	1.56	.94	.88	8
8	8.72	13.50	11.75	.063	9.69	1.75	1.06	.88	8
10	10.88	16.00	14.25	.063	12.00	1.94	1.13	1.00	12
12	12.88	19.00	17.00	.063	14.38	2.19	1.19	1.00	12
16	16.16	23.50	21.25	.063	18.00	2.50	1.38	1.12	16
18	18.18	25.00	22.75	.063	19.88	2.69	1.50	1.25	16
20	20.20	27.50	25.00	.063	22.00	2.88	1.63	1.25	20
22	22.22	29.50	27.25	.063	24.25	3.13	1.75	1.38	20
24	24.25	32.00	29.50	.063	26.12	3.25	1.82	1.38	20

En 1092-1 CS PN16 Flange Dimensions Chart

NPS	(d1)	(k)	(D)	(b)	(d2)	(Bolt holes (B.H.))
10	18,0	60	90	14	14	4
15	22,0	65	95	14	14	4
20	27,5	75	105	16	14	4
25	34,5	85	115	16	14	4
32	43,5	100	140	18	18	4
40	49,5	110	150	18	18	4
50	61,5	125	165	20	18	4
65	77,5	145	185	20	18	4
80	90,5	160	200	20	18	8
100	116,0	180	220	22	18	8
125	141,5	210	250	22	18	8
150	170,5	240	285	24	22	8
200	221,5	295	340	26	22	12
250	276,5	355	405	29	26	12
300	327,5	410	460	32	26	12
350	359,0	470	520	35	26	16
400	411,0	525	580	38	30	16
450	462,0	585	640	42	30	20
500	513,5	650	715	46	33	20
600	616,5	770	840	55	36	20
700	714,2	840	910	63	36	24
800	815,8	950	1025	74	39	24
900	917,4	1050	1125	82	39	28
1000	1019,0	1170	1255	90	42	28

Carbon Steel Forged Flanges Bolt Chart

Size in mm	ISO Stud Size	Raised Face Stud Length	Number of Bolts
15	M14	55	4
20	M14	65	4
25	M14	65	4
32	M14	70	4
40	M14	70	4
50	M16	85	4
65	M16	90	4
80	M16	90	4
90	M16	90	8
100	M16	90	8
125	M20	95	8
150	M20	100	8
200	M20	110	8
250	M24	115	12
300	M24	120	12
350	M27	135	12
400	M27	135	16
450	M30	145	16
500	M30	160	20
600	M33	170	20

Carbon Steel Pipe Flanges Marking

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

4"
FLANGE
WNRF
ASME B16.5 #30
6" OD x 0.250"
152.4 Unit
Bore 15.500"
SCH10S
ASTM A350 LF2

Carbon Steel Weld Neck Flange Dimensions

NPS in Inches	(O.D.) Outer Diameter	Weld Neck Thickness	Hub O.D.	Weld Neck OD	Welding Neck Length	RF Diameter	RF Height
	(A)	(B)	(C)	(D)	(E)	(G)	(H)
1/2	90	9.6	30	21.3	46	34.9	2
3/4	100	11.2	38	26.7	51	42.9	2
1	110	12.7	49	33.4	54	50.8	2
1 1/4	115	14.3	59	42.2	56	63.5	2
1 1/2	125	15.9	65	48.3	60	73	2
2	150	17.5	78	60.3	62	92.1	2
2 1/2	180	20.7	90	73	68	104.8	2
3	190	22.3	108	88.9	68	127	2
3 1/2	215	22.3	122	101.6	70	139.7	2
4	230	22.3	135	114.3	75	157.2	2
5	255	22.3	164	141.3	87	185.7	2
6	280	23.9	192	168.3	87	215.9	2
8	345	27	246	219.1	100	269.9	2
10	405	28.6	305	273	100	323.8	2
12	485	30.2	365	323.8	113	381	2
14	535	33.4	400	355.6	125	412.8	2
16	595	35	457	406.4	125	469.9	2
18	635	38.1	505	457.2	138	533.4	2
20	700	41.3	559	508	143	584.2	2
24	815	46.1	663	610	151	692.2	2

Manufacturing Carbon Steel Pipe Flanges in SCH 80 For Petrochemical Industry In Usa, Europe, Uae, And Malaysia, 100% PMI EN 10204 3.1 Killed CS Flanges with MTC/ MTR Reports

Killed CS 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

CS SORF Flange Standard

BS 4504
ASME B16.5
EN 1092-1
AWWA C207
JIS
ISO
ANSI B16.5
MSS SP-44
EN 1092-2 PN16
DIN

Carbon Flange Chemical Composition

Sulphur

≤0.40

Nickel

≤0.40

Chromium

≤0.30

Copper

≤0.40

Phosphorus

≤0.35

Carbon

≤0.35

Silicon

0.10-0.35

Molybdenum

≤0.12.

Manganese

≤0.08

Vanadium

0.60-1.05

Low Temp Flanges Mechanical Properties

Property	ASTM A105 Flanges	ASTM A350 LF2 Flanges
Tensile Strength (Minimum), psi	70,000	70,000-95,000
Elongation (%)	22	22
Reduction of Area (%)	30	30
Hardness, maximum	187	15/12 ft-lbs
Tensile Strength (Minimum), N/mm²	485	485-655
Yield Strength (Minimum), psi	36,000	36,000
Yield Strength (Minimum), N/mm²	250	250
CVN at -50℉		20/16 joules

Can custom thicknesses be ordered for carbon steel slip on flange?

You can order carbon steel slip on flange in custom thickness from reputed manufacturers like Vishal Steel. They offer full customization of the slip on killed CS flanges which will meet your specific application requirements.

How does the ASME B16.5 standard affect the design of carbon steel weld neck flange?

ASME B16.5 specifies the dimensions and tolerances for carbon steel weld neck flanges.
The standard provides pressure-temperature ratings.
ASME B16.5 lists the acceptable materials that ensure the compatibility of normalized CS flanges with the intended application.
The standard outlines the facing and finish requirements for flange surfaces.

What are the testing requirements for carbon steel blind flange?

Verify the CS forged flange dimensions and ensure it adheres to the specified standards.
Examine the carbon steel blind flange surface for any visible defects.
Obtain material test reports to validate the CS flanges grade and composition.
Perform pressure testing to ensure the ability of the carbon steel flat face flange to withstand the intended pressure rating.
Depending on requirements, non destructive testing methods may be performed to detect internal defects or surface irregularities.

What are the most common manufacturing methods for carbon flanges?

Forged carbon flanges are produced by heating the material and shaping it using pressure to form the desired shape.
Machined carbon steel companion flanges are made by removing material from a larger piece to achieve the final shape.
Welded flanges are fabricated by joining multiple pieces of low carbon flanges by various welding processes.
Cast carbon steel stub end flanges are made by pouring molten metal into a mold to solidify into the desired shape.

Carbon Steel Flange Forging Factory In India