ASTM A105 Flange and SA105/ A105n specification (ASME B16.5)

Quick Information

Stock Sizes: 1/2 to 48″
Types: Forged, Threaded, Plate
Pressure: Class 150 To 2500
Yield strength: 70,000 PSI
Hardness: 187 HBW
European: EN 1092-2, EN 1092-1
JIS: JIS B2311, JIS B2220
Sealing: RF, FF, RTJ
Melting Point: 1420°C

Benefits of Purchasing ASTM A105 Flange From Aesteiron Steels

Benefits	Details
Quality	Best Quality
Cost-Effectiveness	Lowest Price
Delivery	Timely Delivery Provided
Customization	Our Team is Expert to Provide Custom Sizes

Table Of Content

Detailed ASTM A105 Flange Specification
Types of A105 Forged Steel Flanges
Types of A105 Flange Heat Treatment
Pressure Ratings of ASTM A105 Forged Steel Flanges
API 5L Grade X52 to ASTM A105 Flange Compatibility
Comparison of ASTM A105 and A105n Mechanical Properties
ASTM A105 Class 150 Flange Dimensions
A105n Blind Flange Blind Flange Dimensions
ASTM A105 Slip On Flange Dimensions
Weight Chart of Flange A105 Class 150
Chemical Composition of Carbon steel ASTM A105 Flanges
A105 Weld Flange Physical Properties
ASTM A105 Flange Mechanical Properties
Flange A105 Vs A105n
SA 105 carbon steel Flanges Casting & Forging Equivalent Grades
Difference Between Astm A105 and A106 Flanges
Does Aesteiron Steels ASTM A105 Flanges Work in High Temperatures?
What are the Features to Buying ASTM A105 Flanges from India?
What is the Maximum Temperature for ASTM A105 Threaded Flanges?
How to Select the Right Carbon Steel A105 Flange for Projects ?
Impact of Acids on ASTM A105 Flange
Client Reference List
British Standards of A105 Flange

ASTM A105 Blind Flange manufacturer in India, View ASME B16.5 SA105 Flange Specification

Detailed ASTM A105 Flange Specification

ASTM A105 Flange Sizes

1/2 to 48″
DN10 to DN5000
15 NB to 1200NB

ASTM A105 Blind Flange pressure class

Class 150-600
Class 900-2500

Manufacturing methods of SA105 flange

Plate
Cast
Forged

A105 Flange Connection Types

FF, RF
LMF, T&G
RTJ, SMF

flange SA105 Supporting Material

Gaskets
Ring Joint
Nuts/ Bolts

A105n Flange Coating Methods

Anti-Rust
Oil Varnished
Electric Zinc

Flange ASTM A105 ASME B16.5 Process

Heat treatment
Machining
Forming
Inspection test
Packaging

A105 steel flanges Schedule

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

CS ASTM A105 Flange Advantages

Cost-Effective
High temperature
Excellent mechanical properties

Certificate of SA105n Flange

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

ASTM A105 class 150 Flange Finish

Mirror finish
Stock finish
Cold water finish
Smooth finish
Concentric serrated

Threads Types of SA 105 Flange Material

BSPP
MNPT
MPT/ BSPT
BSP
NPT,FPT

A105 steel flanges Face Type

FF face
LJ face
T&G face
RF face
RTJ face

Flange A105 Class 150 Packaging

Plastic bag
Carton box
Wooden case
Or custom

Applications of A105 Flange Material

Oil & gas plants
Sea water exchanger

A105n Flange in all Configurations to Connect High Pressure Pipelines

Types of A105 Forged Steel Flanges

SA 105 Forged Flange

A105n Plate Flange

ASTM A105 class 150 Blind Flange

A105 steel Weld Neck Flange

ASTM a105 Slip On Flange

A105 Class 150 Socket Weld Flange

ASME SA 105 Threaded Flange

SA 105 steel Lap Joint Flange

ASTM A105 UNS K03504 SORF Flange

A105 forged carbon steel WNRF Flange

A105n Normalized LWNRF Flange

SA 105 carbon steel Orifice Flange

A105 forged carbon steel RTJ Flange

ASME SA 105 A105n BLRF Flange

A105n forged Reducing Flange

ASTM A105 High Hub Raised Face Flange

A105 killed carbon steel Dummy Flanges

SA 105 Reducing Flange

Manufacturer of ASTM A105 Slip On Flange in India with Normalizing and Hardening Heat Treatments

Types of A105 Flange Heat Treatment

Annealing

It is used to remove stresses, refine the crystalline structure, produce a microstructure

Quenching and Tempering

It is tempered by reheating at a lower temperature to lessen brittleness while keeping strength.

Normalizing

Heating the flange above its critical temperature range, followed by air cooling, refines the grain structure and improves material uniformity.s

Find ASTM A105 Forged Steel Flanges Compatibility and Pressure Ratings

Pressure Ratings of ASTM A105 Forged Steel Flanges

ASME B16.34 -A105/ A105N	PRESSURE RATING
Temperature ( C°)	Class 150	Class 600	Class 300	Class 400	Class 900	Class 1500	Class 2500
-29 / 38	19.6	102.1	51.1	68.1	153.2	255.3	425.5
150	15.8	90.2	45.1	60.1	135.2	225.4	375.6
50	19.2	100.2	50.1	66.8	150.4	250.6	417.7
100	17.7	93.2	46.6	62.1	139.8	233	388.3
200	13.8	87.6	43.8	58.4	131.4	219	365
325	9.3	77.4	38.7	51.6	116.1	193.6	322.6
350	8.4	75.1	37.6	50.1	112.7	187.8	313
250	12.1	83.9	41.9	55.9	125.8	209.7	349.5
300	10.2	79.6	39.8	53.1	119.5	199.1	331.8
375	7.4	72.7	36.4	48.5	109.1	181.8	303.1
450	4.6	46	23	30.7	69	115	191.7
400	6.5	69.4	34.7	46.3	104.2	173.6	289.3
425	5.5	57.5	28.8	38.4	86.3	143.8	239.7
475	3.7	34.9	17.4	23.2	52.3	87.2	145.3
500	2.8	23.5	11.8	15.7	35.3	58.8	97.9

Above Pressure Ratings are as per ASME B16.34a standard.

API 5L Grade X52 to ASTM A105 Flange Compatibility

Comatibility Property	Details
Yield Strength Acceptability	A105 flange (42 ksi SMYS) welded to X52 pipe (52 ksi SMYS)
Strength Equation	S1×t1=S2×t2 Where S1 & T1 Min Thicknesss S2 & T2 Nominal Thickness
Hub Thickness	Calculate required hub thickness for A105 flange
Weld Joint	Thickness difference acceptable with end (B16.5)
Conclusion	A694 flange with matching SMYS would match weld end thickness

Comparison of ASTM A105 and A105n Mechanical Properties

Property	ASTM A105 Flanges	ASTM A105N Flanges
Tensile Strength	70,000 psi (485 MPa)	Similar
Yield Strength	36,000 psi (250 MPa)	Similar (reliable performance under load)
Hardness	limited to 197 HBW	Providing consistent hardness

Manufacturer of SA105n Flange in FF/ RF Connections, check ASTM A105 Class 150 Flange Dimensions

ASTM A105 Class 150 Flange Dimensions

Size	L	G	D	K	B
1″	15,9	50,8	107,9	79,4	14,3
5″	22,2	185,7	254,0	215,9	23,8
8″	22,2	269,9	342,9	298,4	28,6
2″	19,0	92,1	152,4	120,6	19,0
3″	19,0	127,0	190,5	152,4	23,8
4″	19,0	157,2	228,6	190,5	23,8
10″	25,4	323,4	406,4	361,9	30,2
12″	25,4	381,0	482,6	431,8	31,7
16″	28,6	469,9	596,9	539,9	36,5
18″	31,7	533,4	635,0	577,8	39,7
20″	31,7	584,2	698,5	635,0	42,9

A105n Blind Flange Blind Flange Dimensions

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

ASTM A105 Slip On Flange Dimensions

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

Weight Chart of Flange A105 Class 150

Class 150
Nominal Pipe Size	ASME SA 105 Slip On flange	A105n carbon steel Blind flange	SA 105 carbon steel Weld Neck flange
½	1	2	2
1½	3	4	4
¾	2	2	2
1	2	2	3
1¼	3	3	3
2	5	5	6
2½	8	7	10
5	15	20	21
6	19	27	26
3	9	9	11.5
3½	11	13	12
4	13	17	16.5
8	30	47	42
16	106	180	140
18	130	220	165
10	43	70	54
12	64	123	88
14	90	140	114
20	165	285	197
22	185	355	225
24	220	430	268

Chemical Composition of Carbon steel ASTM A105 Flanges

0.35 max

0.12 max

0.60-1.05

0.035 max

0.040 max

0.30 max

0.40 max

A105 Weld Flange Physical Properties

Property	Value
Density (lb / cu. in.)	0.284
Heat (Btu/lb/Deg F)	0.107
Gravity	7.9
Conductivity	360
Melting Point	2740

ASTM A105 Flange Mechanical Properties

Flange A105 Vs A105n

Feature	ASTM A105 Flanges	ASTM A105N Flanges
Heat Treatment	Not Normalized	Normalized
Mechanical Properties	Standard properties	Enhanced properties
Applications	Used in pipelines, refineries,	Used in power plants
Usage Temperature	Higher temps	Low temperatures

SA 105 carbon steel Flanges Casting & Forging Equivalent Grades

ASTM

ASTM A105
ASTM A216 Gr. WCB

JIS

G3201 SF490A
SCW400

DIN

DIN 17100 St52-3 1.057
DIN 17245 GS-C25 1.0619

Difference Between Astm A105 and A106 Flanges

Property	ASTM A105 Flanges	ASTM A106 Flanges
Carbon Content	0.35%	Grade A - 0.25% Grade B - 0.30% Grade C - 0.35%
Manufacturing Process	Open-Die Forging Closed-Die Forging	Billet Piercing Elongation Finishing:
Tensile Strength	485 MPa (70,000 psi)	415 MPa (60,000 psi)
Yield Strength	250 MPa (36,000 psi),	240 MPa (35,000 psi)
Elongation	22%	30%
Hardness	187 HBW	130 HB
Applications	Oil and Gas Industry, Power Generation, Chemical Processing	High-Pressure and High-Temperature Applications, Industrial Piping Systems

Does Aesteiron Steels ASTM A105 Flanges Work in High Temperatures?

Yes, ASTM A105 flanges are Work in high temperature Applications.
Suitable for various temperature and pressure conditions

What are the Features to Buying ASTM A105 Flanges from India?

High strength and durability
Susceptible to corrosion
Protected with coatings
Cost-effective
Withstand high temperatures

What is the Maximum Temperature for ASTM A105 Threaded Flanges?

A105 flange	Temperature limit
Section I	1000°F
Section VIII Division 1	1000°F
Section III, Classes 2 and 3	700°F
Section XII	650°F

How to Select the Right Carbon Steel A105 Flange for Projects ?

Selecting the Right Carbon Steel A105 Flange

Determine the maximum pressure
Choose the type of flange
Choose a flange size that corresponds to the pipe size.
Assess the environmental conditions
Take your application's temperature range into consider.
Flange satisfies applicable industry standards.

Impact of Acids on ASTM A105 Flange

It is typically recyclable and eco-friendly.
In corrosive conditions, coatings or material choices may be required to avoid harm to the environment.

Client Reference List

Projects	Location	Material
Gentse Warmte Centrale project	Belgium	ASTM A105 Flange
Scholven Phase III CHP Plant	Germany	ASTM A105 Blind Flange
REACTOR REPLACEMENT FOR R-501 POWERFORMING UNIT ROTTERDAM REFINERY	Netherlands	SA105n Flange
Duqm refinery projects	Oman	A105n Flange
QAFCO 3 Project	Qatar	ASTM A105 class 150 Flange

British Standards of A105 Flange

BS	Standars
BS 10	BS 10 Table D Flange BS 10 Table E Flange BS 10 Table F Flange BS 10 Table H Flange
BS 4504	BS 4504 PN6 Flange BS 4504 PN10 Flange BS 4504 PN16 Flange BS 4504 PN25 Flange BS 4504 PN40 Flange

Why Aesteiron?

Distributor of USA, Japan and European Mills for Seamless Pipes and Steel Plates
Only Indian Company who has Weekly 3 Shipment to Saudi Arabia, Netherlands and USA
Vast experience as an Exporter of Industrial Long and Flat Products in India
Keep Ex-Stock of Nickel Alloys Make Special Metals, USA
Supply Europe, USA, Japan and Korea Origin Material
Local Distributor in Houston (USA)
350+ Clients in Atlanta, California, Wisconsin, Texas, Kansas, Indiana, Florida
Get Price, availability, and shipping information Via WhatsApp and Email in Maximum 2 Hrs
DFARS compliant Pipe, Fittings and Sheets for oil and gas companies
Weekly Delivery in Tanzania, Sharjah, Dubai, Qatar and Cape Town
Special Price for Steel Suppliers, Wholesalers, Importer, Stockholder, Traders and Stockist in USA
Known for Best quality of Steel Fittings, Flanges and Pipes
Offer MTC 3.1/3.2 and Third Party Inspection at Lowest Price
Specialized in supplying Large Diameter Steel Pipes with wear-resistant coating

Tools & Downloads