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ASTM A105 blind flange Manufacturer in India

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A105 Carbon Steel Blind Flange supplier in Mumbai, also check SA 105 BLRF Flange heat treatment process

ASTM A105 blind flange Specifications

What are the top 7 applications of ASTM A105 blind flanges?

  • Oil and Gas Industry: ASTM A105 blind flanges find extensive use in the oil and gas industry for sealing off pipelines, vessels, and equipment.
  • Petrochemical Industry: These flanges are widely employed by ASTM A105 blind flanges manufacturers in India for sealing and isolating pipelines and equipment.
  • Power Generation: They are utilized in power generation plants including thermal power plants & nuclear power plants.
  • Water and Wastewater Treatment: In the water treatment industry they are employed for closing off pipes and tanks in wastewater treatment plants & desalination plants.
  • Chemical Processing: They are used to seal & isolate pipelines and vessels handling corrosive chemicals.
  • Shipbuilding: They are used to isolate pipelines & tanks in ships & offshore structures.
  • Construction & Infrastructure: They play a role in construction projects for closing off sections of piping systems.

Check Compression testing of A105 Blind Flange and ASME SA 105 Spectacle Blind Flange for better quality

What is the heat treatment process for A105 Blind Flange?

  • Normalizing: A105 blind flanges are heated around 950°C to improve the mechanical properties
  • Cooling: The cooling rate depends on desired properties of the flanges & specific requirements of the use case.
  • Tempering: Tempering is a step that involves reheating flanges around 550°C.

Table of Content

ASTM A105 Blind Flange Specification

Material Types Sizes
ASTM A105
  • Blind
  • BLRF
  • BLFF
  • 1/2"- 24"
Connection Types Testing Techniques
Raised Face / Flat Face
  • X-ray detector
  • Ultrasonic
  • Hydrostatic testing
 Casting / Cold press
Surface ASME / ANSI Pressure Rating
  • Mirror polish
  • Matt finish
  • Sand blasting
  • ASME B16.5
  • ANSI B16.5
 Class 150 to Class 2500

Price list of ASME SA 105 Blind Flange

Product Price
A105N FLANGE 3/4 300 BLIND RF ASME B16.5 US $ 14.62 per piece
ASMT A105N FLANGE 2 , 150# BLIND RD US $ 12.69 per piece
A105N Flange Blind RF Class 600 3 Inch US $ 18.33 per piece
ASTM A105N Flange Blind RF Class 600 3/4 Inch US $ 6.88 per piece

A105 Carbon Steel Blind Flange Types

ASTM A105 blind flange

ASTM A105 blind flange

A105 blind flange

A105 blind flange

ASME SA105 blind flange

ASME SA105 blind flange

SA 105 blind flange

SA 105 blind flange

ASTM A105 forged steel blind flanges

ASTM A105 forged steel blind flanges

ASME b16.47 blind flange

ASME b16.47 blind flange

SA105 steel forged flanges

SA105 steel forged flanges

ASME SA105 slip on flange

ASME SA105 slip on flange

ASTM A105 carbon steel pipe flanges

ASTM A105 carbon steel pipe flanges

Check allowable stress and sizes of ASTM A105N Tapped Blind Flange and A105 Steel BLRF Flange as per ANSI B16.5 standard

How are A105 Carbon Steel Blind Flange tested for quality control?

  • Dimensional Inspection: This test verifies that A105 carbon steel blind flanges meet the required dimensional specifications including diameter, thickness, height & overall geometry.
  • Visual Inspection: Visual inspection involves an examination of cracks, pits, scratches, or other imperfections.
  • Mechanical Properties Testing: Various mechanical tests are conducted to assess the tensile strength, yield strength, elongation & hardness.
  • Pressure Testing: Pressure testing involves subjecting the flanges to hydraulic pressure to verify their ability to withstand the working pressure.

SA 105 BLRF Flange Dimensions

SA 105 BLRF Flange Dimensions

Size
in Inch		 Size
in mm		 Outer
Dia.		 Flange
Thick.		 RF
Dia.		 RF
Height		 PCD No of
Bolts		 Bolt Size
UNC		 Machine Bolt
Length		 RF Stud
Length		 Hole Size ISO Stud
Size		 Weight
in kg
A B C D E
1/2 15 90 9.6 34.9 2 60.3 4 1/2 50 55 5/8 M14 0.9
3/4 20 100 11.2 42.9 2 69.9 4 1/2 50 65 5/8 M14 0.9
1 25 110 12.7 50.8 2 79.4 4 1/2 55 65 5/8 M14 0.9
2 50 150 17.5 92.1 2 120.7 4 5/8 70 85 3/4 M16 2.3
4 100 230 22.3 157.2 2 190.5 8 5/8 75 90 3/4 M16 7.7
5 125 255 22.3 185.7 2 215.9 8 3/4 85 95 7/8 M20 9.1
12 300 485 30.2 381 2 431.8 12 7/8 100 120 1 M24 50
14 350 535 33.4 412.8 2 476.3 12 1 115 135 1 1/8 M27 64

Chemical composition of A105 Blind Flange

C Si Mn Cu S V P Cr Mo Ni
0.35 0.10–0.35 0.60–1.05 0.40 0.040 0.08 0.035 0.30 0.12 0.40

ASME SA 105 BLRF Flange Mechanical properties

Elongation Tensile Properties HB max
22 % 485(N/mm2) 187
A105 N Raised Face Blind Flange and ASTM A105M BLRF Flanges are available in sizes ranging from 1/2″ to 48″

ASTM A105M BLRF Flanges pressure rating

Temperature in °F 150# 400# 300# 900# 600# 2500# 1500#
-20 to 100 290 1000 750 2250 1500 6250 3750
200 260 1000 750 2250 1500 6250 3750
300 230 970 730 2185 1455 6070 3640
400 200 940 705 2115 1410 5880 3530
500 170 885 665 1995 1330 5540 3325
600 140 805 605 1815 1210 5040 3025
650 125 785 590 1765 1175 4905 2940
700 110 755 570 1705 1135 4730 2840
750 95 670 505 1510 1010 4200 2520
800 80 550 410 1235 825 3430 2060
850 65 355 270 805 535 2230 1340
900 50 230 170 515 345 1430 860
950 35 140 105 310 205 860 515
1000 20 70 50 155 105 430 260

What are different sealing types of Carbon steel A105 BLRF flanges

Flat Face

Flat Face

Raised Face

Raised Face

Check advantages and properties of SA 105 Paddle Blind Flange and A105N Steel Blind RTJ Flange

Application of SA 105 Paddle Blind Flange

  • Gasoline and freshwater tanks
  • Crude petroleum stills
  • De-aerating heaters
  • Oil and gas well piping
  • Nuclear fuel reprocessing
  • Power generation
  • Chemical processing

Testing of A105 CS Blind Flange

  • Charpy impact
  • Metallographic
  • Dye or liquid penetrant
  • Ferrite content
  • Hydrostatic
  • Magnetic particles
  • Pneumatic pressure
  • Positive material identification
  • Radiography

What is the maximum allowable stress for ASME SA 105 Spectacle Blind Flange?

The maximum allowable stress depends on the design temperature, pressure, and flange rating class. Allowable stress values for ASME SA 105 Spectacle Blind Flange are provided in recognized standards such as ASME B16.5 and ASME B31.3.

What is the purpose of installing A105 Steel BLRF Flange in process equipment?

The A105 Steel BLRF Flange is used in process equipment to provide a solid closure for an opening or end of a piping system or vessel. The raised face helps to create a better seal when bolted to a mating flange or closure plate. It is used where temporary or permanent closure is required like during maintenance or shutdowns.

What are the advantages of ASME SA 105 Blind Flange?

  • Availability and Cost: ASME SA 105 blind flanges are more affordable compared to some other alloyed flanges.
  • Strength and Durability: It has elevated strength & toughness which makes blind flanges durable & capable of surviving demanding operating conditions.

Frequently asked question

What is the yield strength of A105 Steel BLRF Flange?

The yield strength represents the point at which the material begins to deform plastically & is an essential characteristic for determining its structural integrity & suitability for specific applications. The yield strength of A105M BLRF Flange is around 250 MPa to 415 MPa.

What is the normalizing temperature for ASME SA 105 Blind Flange?

Normalizing is a heat treatment process that aims to refine the microstructure, relieve stresses & enhance the mechanical properties of the flange. The normalizing temperature for ASME SA 105 blind flanges is in the range of 900°C to 950°C.

What is the minimum hardness of A105 N Raised Face Blind Flange?

There is no specific minimum hardness requirement defined in ASTM A105 or ASME B16.5 standards which cover the specifications and dimensions for flanges. The hardness of A105 N Raised Face Blind Flange can vary depending on manufacturing process, heat treatment, and customer requirements.