• +91 22 66363099
  • info@spmetal.net

Stainless Steel Blind Flange


Stainless Steel Blind Flange

What is Stainless Steel Blind Flange?

A stainless steel blind flange is a flange designed without a face or a boring center. These flanges are utilized to curtail the hydraulic flow at the ends of tubings or other piping equipment. Blind flanges are versatile components, which can be availed with a flat or a raised face. A blind flange can be directly bolted on the piping equipment allowing room for cleaning and inspection. These flanges can withstand high pressures and corrosive media while managing to form a strong sealing within the system.

ASME B16.5 Blind Flange Uses

ASME B16.5 blind flanges have functions similar to a plug or a cap. These flanges help in terminating the flow of fluids, gases, air by sealing the ends of various piping systems. A blind flange can also act as a barrier to prevent the fluid movement to allow for modifications or repair in the system. Apart from this, they can also be utilized to check the pipe pressure for creating access points within the system.

ASTM A182 F304 Blind Flange vs ASTM A182 F316 Blind Flange

Stainless steel ASTM A182 F304 and ASTM A192 F316 blind flange blind flanges are amongst the grade of blind flanges which are widely utilized in the piping industry. Both these flanges are very identical visually, but there is some basic difference in their chemical composition, which differentiated both these components.

304 blind flanges have a chemical concentration of 18% chromium and 8% nickel. The 316 grade has a chemical concentration of 16% chromium, 10% nickel with 2% of molybdenum. The molybdenum concentration helps these flanges to fight against chloride pitting and makes them suitable for seawater applications. The superior chemical configuration makes the 316 blind flanges costlier than the 304-grade flange.

Differnce Between ANSI B 16.5 Class 600 Blind Flange and class 2500 Blind flange

ANSI B 16.5 Class 600 and class 2500 Blind flanges are differentiated based on their respective pressure classes. Pressure classes in flanges can be termed as the maximum allowable pressure a flange can withstand as the temperature gradually increases. A class 600 blind flange can withstand 890 psi of pressure at 600 degrees F. In the same case, class 2500 blind flange can tolerate 4730 psi of pressure at the same temperatures. The 600 flange is lighter, less robust, and smaller compared to the 2500 class blind flange.

SS Blind Flange Characteristics

Some of the characteristics of a ss blind flange include

  • Flat face surface
  • Excellent sealant facilitating the termination of the flow in the system
  • High corrosion resistance properties
  • Bolted to the piping system allowing for inspection and checks
  • Acts as a barrier to allow for repairs and modifications
  • Able to withstand high volumes of fluid flow
  • Available in flat or raised face

Blind Flange Manufacturer in India

Looking for Stainless Steel Threaded Blind Flange suppliers who offer prompt delivery in Asia? Manufacturer of SS Rf Blind Flange in India, call us for big discount and ready sizes, check latest price of Stainless Steel Raised Face Blind Flange in Mumbai

Blind Flange Manufacturer In India And Class 150/ 300/ 600 Flange Dimension And Specifications

SS Blind Flange Specification

SpecificationStainless Steel Slip On Flange
Face TypeSlip On Raised Face Flanges
Slip Blind Flanges
Reducing Slip On Flanges
Slip On Flat Face Flanges
Slip Joint Flanges
Slip On Plate Flanges
Making MethodsCasting And Forging
Rolling And Cutting
Size1/2”, 2”, 3”, 4”, 6”, 8”, 10”, 12” to 24”.
Customized DiameterUp to 40 Inches
Slip On Flange UseStainless Steel Slip On Flange are used in applications where the two pipes have to be held together with nuts and bolts.
ScheduleSCH 5S, SCH 10, SCH 40, SCH 80, SCH 120, SCH 160, SCH 180 To XXS
Manufacturer LengthNPS 1⁄₂" To NPS 48”
EN Standard10Bar/ 6Bar/ 25Bar/ 16Bar/ 40Bar
DIN StandardPN10/ PN6/ PN16/ PN40/ PN25/ PN64
JIS Standard5K/ 10K/ 16K 20K/ 30K/ 40K/ 63K
Other StandardB16.47 Series A & B/ B16.48, BS4504/ GOST
UNI Standard6 Bar/ 10 Bar/ 16 Bar/ 25 Bar/ 40 Bar
Supporting MaterialGasket/ Ring Joint/ Flanges Bolts
Test CertificatesRaw Materials Certificate
EN 10204/3.1B
Third Party Inspection Report,
100% Radiography Test Report etc
Production TechniqueForged, Heat treated, machined
Manufacturer ofForged/ Threaded/ Screwed / Plate
Manufacturer Pressure ClassClass 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"
Flanges TestHydrostatic testing / UI trasonic flaw detector/ Direct-reading Spectrograph/ Magnetic particle and X-ray detector
Flanges Equipmentelectric bevelling machine/ Pushing Machine/ Press machine/ Bending machine/ Sand-blasting machine etc
CoatingAnti-rust Paint/ Zinc Plated/ Oil Black Paint/ Yellow Transparent/ Cold and Hot Dip Galvanized
ApplicationBitumen upgraders
oil refineries.
Nuclear power
acids and Petrochemicals.

ASTM A182 BLRF Flange Material

Carbon Steel BLRF Flange ASME/ASTM A/SA105N A/SA105 & A/SA216-WCB, DIN 1.0460, DIN 1.0402, DIN 1.0619, ASTM A105, Die Steel, ASME SA105, ASTM A350 LF2, A105N, ASME SA350, High Yield CS ASTM A694 (F52 F80 F70 F65 F56 F60)
Stainless Steel BLRF Flange A/SA182 ASME/ASTM F316L F304, F304L, F316,, ASME/ASTM A/SA351 CF8, CF3M, CF8M, CF3, DIN 1.4301,DIN 1.4401, DIN 1.4306, DIN 1.4404, DIN 1.4408, DIN 1.4409, DIN 1.4308, DIN 1.4306
Alloy Steel BLRF Flange ASME SA182/ ASTM A182 F11, F91 F22, F5, F9, F12,
Ti BLRF Flange ASME SB381, ASTM B381, Ti Grade 1, Ti Grade 4, Ti Grade 2, Ti Grade 5,
ASTM R50250/Grade 1 Ti Grade 7 | R50400/Grade 2 | R50700/Grade 4 | R50550/Grade 3 | Grade 6 |R52400/Grade 7 | R56320/Grade 9 | R53400/Grade 12 | R56400/Grade 5
Copper BLRF Flange C17200, C10700, C10500, C12000,C12200, C33200, TP2, C60800, T2, C11600, TU1, C11300, C68700, C12500, C71520, C11000, C23000, C63020, C44500, C71500, C11400, C10300, C14200, C26000, C14420, C14510, C14520, TP1, T1, C37000, C27400, C70400, C44400, C10200, C70600, C11500, C14500, C28000, C10930, C71000, C27000, C21000, C10800, C12300, TU2, C10400, C10910,C10920, C44300, C14530, C10100, C70620, C71640, C19200, C33000, etc
Copper Nickel BLRF Flange ASME, ASTM SB 61, 151, 152, 62, Copper Nickel 90/10 (C70600 ), UNS C71640, Cupro Nickel 70/30 (C71500)
Brass BLRF Flange 3602, H62 H59, 2604, etc.
Inconel BLRF Flange ASME SB564, ASTM B564, Inconel x750, 690, 783, 625, 718, 600, 601 Flanges
Hastelloy BLRF Flange ASME SB564, ASTM B564, Hastelloy C22 (UNS N06022), C276 (UNS N10276), C2000, C4, B3, B2, X Flanges
Monel BLRF Flange ASME SB564, ASTM B564, Monel 500 (UNS No. N05500), Monel 400 (UNS No. N04400)
Alloy 20 BLRF Flange ASME SB462, ASTM B462, Alloy 20Cb-3 Carpenter® 20 Alloy,
Aluminium BLRF Flange 2017, 5052, 6063, 6061, 7075, etc.
Nickel BLRF Flange ASME SB564, ASTM B564, Nickel 200, Nickel 205, Nickel 201, Nickel 205LC
Duplex BLRF Flange S32205, S31803 A182 Gr F54, F59, F53, F51, F57, F55, F52, F61 F60,
Super Duplex BLRF Flange S32760, S32750 A182 Gr F57, F55, F61 F60, F52, F54, F51, F53, F59,
Incoloy BLRF Flange ASME SB564, ASTM B564, Incoloy 800HT 800, 800H (UNS N08800), 925 Flanges, 825 (UNS N08825)
254 Smo BLRF Flange ASME SA182, ASTM A182, UNS S31254, SMO 254/6Mo, DIN 1.4547
Nimonic BLRF Flange Nimonic 80A, Nimonic 75, Nimonic 90
Other BLRF Flange material Alumunum bronze, Tin bronze, Lead bronze

Manufacturer & Supplier Of Stainless Steel Blank Flange, High Hub Blind Flange In India

Chemical Composition of Stainless Steel Blank Flange

TypeCMnPSSiCrNiMb
3020.152.000.0450.0301.0017.00/19.008.00/10.00
3040.082.000.0450.0301.0018.00/20.008.00/10.50
304L0.032.000.0450.0301.0018.00/20.008.00/12.00
3090.202.000.0450.0301.0022.00/24.0012.00/15.00
309S0.082.000.0451.0022.00/24.00
3100.252.000.0450.0301.524.00/26.0019.00/22.00
310S0.082.000.0450.0301.524.00/26.0019.00/22.00
3160.082.000.0450.0301.0016.00/18.0010.00/14.002.00/3.00
316L0.032.000.0450.0301.0016.00/18.0010.00/14.002.00/3.00
3170.082.000.0450.0301.00/1.0018.00/20.0011.00/15.003.00/4.00
317L0.032.000.0450.0300.7518.00/20.0011.00/15.003.00/4.00
3210.082.000.0400.0301.0017.00/19.009.00/12.000.75/0.75
3470.082.000.0400.0300.5/1.0017.00/19.009.00/12.000.5/0.75

BLRF Flange Full Form

Blind Raised Face Flanges (BLRF)

Test Certificate Of SS Blind Flange

  • 100% Radiography Test Report
  • Raw Materials Certificate
  • Third Party Inspection Repor
  • EN 10204/3.1B,

Stainless Steel Threaded Blind Flange Documentation

  • Raw Material Test Reports
  • Fumigation Certificates
  • Fumigation Certificates
  • Guarantee Letter
  • QAP (Quality Assurance Plan)
  • NABL approved Laboratory Test Reports
  • Heat Treatment Charts
  • Commercial Invoice which includes HS Code

India's leading manufacturer of Stainless Steel Blank Flange and SS Threaded, Rf Blind Flange offers own Pressure Test Facility

ASME B16.5 Tapped Blind Flange Dimensions

*Size*T
3/8"10.5
1/2"13.5
3/4"14.0
1"17.5
1-1/4"18.1
1-1/2"18.3
2"19.4

Dimensions of Pn16 Blank Flange

 DIN 2725 PN16 Flanges Dimensions

DIN 2527 PN16 BLIND FLANGE
Rated
Diameter
FlangeScrewsWeight
(7,85 Kg/dm3)
DbkNumberThreadd2Shape B
Kg
159514654M 12140,72
2010516751,01
2511516851,23
3214016100M 16181,8
40150161102,09
50165181252,88
65185181453,66
802002016084,77
100220201805,65
125250222108,42
15028522240M 202210,4
200340242951216,1
25040526355M 242624,9
3004602841035,1
350520304701647,8
40058032525M 273063,5
5007153665020M 3033102

Stainless Steel Blind Flange Prices

TypeUNSTensile
(ksi) min
Yield
(ksi) min
Elongation
min
Hardness
(Brinell) max
Hardness
(Rockwell B) max
302S30200753040% in 2″18388
304S30400753040% in 2″18388
304LS30403703040% in 2″18388
309S30900753040% in 2″21795
309SS30908753040% in 2″21795
310S31000753040% in 2″21795
310SS31008753040% in 2″21795
316S31600753040% in 2″21795
316LS31603702535% in 2″21795
317S31700753035% in 2″21795
317LS31703753035% in 2″21795
321S32100753040% in 2″18388
347S34700753040% in 2″18388

Well-known Blind Flange manufacturer in India. For final Stainless Steel Flat Face Blind Flange Price List Please Call on +91 22 6636 3099.

Packaging of Stainless Steel Raised Face Blind Flange

DescriptionPer Unit (INR)
STAINLESS STEEL FLANGES 50 NB 150# BLIND RF561
STAINLESS STEEL FLANGES 150 NB 150 # BLIND RF2,491
STAINLESS STEEL FLANGES 80 NB 150# BLIND RF1,015
STAINLESS STEEL FLANGES 100 NB 150 # BLIND RF1,473
STAINLESS STEEL FLANGES 25 NB 150# BLIND RF247
FLANGE SORF,BLIND 50NB CL150 SA105M1,961
SS FORGED FLANGES ASTM A 240 GR. F304L/F304 SPECTACLE BLIND ASME B16.48 SIZE: 1 1/2 Nominal Bore X 150# CLASS1,739

SS Class 300 Blind Flange Mechanical Properties

Stainless Steel Blind Flanges Packaging1
Stainless Steel Blind Flanges Packaging2

Equivalent of Stainless Steel Flat Face Blind Flange

STANDARDWERKSTOFF NR.UNSJISBSGOSTAFNOREN
SS 3041.4301S30400SUS 304304S3108Х18Н10Z7CN18‐09X5CrNi18-10
SS 304L1.4306 / 1.4307S30403SUS 304L3304S1103Х18Н11Z3CN18‐10X2CrNi18-9 / X2CrNi19-11
SS 304H1.4301S30409
SS 3101.4841S31000SUS 310310S2420Ch25N20S2X15CrNi25-20
SS 310S1.4845S31008SUS 310S310S1620Ch23N18X8CrNi25-21
SS 3161.4401 / 1.4436S31600SUS 316316S31 / 316S33Z7CND17‐11‐02X5CrNiMo17-12-2 / X3CrNiMo17-13-3
SS 316L1.4404 / 1.4435S31603SUS 316L316S11 / 316S1303Ch17N14M3 / 03Ch17N14M2Z3CND17‐11‐02 / Z3CND18‐14‐03X2CrNiMo17-12-2 / X2CrNiMo18-14-3
SS 316Ti1.4571S31635SUS 316Ti320S3108Ch17N13M2TZ6CNDT17‐123X6CrNiMoTi17-12-2
SS 3171.4449S31700SUS 317
SS 317L1.4438S31703SUS 317LX2CrNiMo18-15-4
SS 3211.4541S32100SUS 321X6CrNiTi18-10
SS 321H1.4878S32109SUS 321HX12CrNiTi18-9
SS 3471.4550S34700SUS 34708Ch18N12BX6CrNiNb18-10
SS 4101.4006S41000SUS 410410S21X12Cr13
SS 4461.4762S44600
SS 904L1.4539N08904SUS 904L904S13STS 317J5Z2 NCDU 25-20X1NiCrMoCu25-20-5

SS 304 Blind Flange Grade

304 Stainless Steel Blind Flanges
304 Stainless Steel Blind Flanges
304L Stainless Steel Blind Flanges
304L Stainless Steel Blind Flanges
304H Stainless Steel Blind Flanges
304H Stainless Steel Blind Flanges
310 Stainless Steel Blind Flanges
310 Stainless Steel Blind Flanges
310S Stainless Steel Blind Flanges
310S Stainless Steel Blind Flanges
310H Stainless Steel Blind Flanges
310H Stainless Steel Blind Flanges
316 Stainless Steel Blind Flanges
316 Stainless Steel Blind Flanges
316L Stainless Steel Blind Flanges
316L Stainless Steel Blind Flanges
316Ti Stainless Steel Blind Flanges
316Ti Stainless Steel Blind Flanges
317 Stainless Steel Blind Flanges
317 Stainless Steel Blind Flanges
317L Stainless Steel Blind Flanges
317L Stainless Steel Blind Flanges
347 Stainless Steel Blind Flanges
347 Stainless Steel Blind Flanges
347H Stainless Steel Blind Flanges
347H Stainless Steel Blind Flanges
410 Stainless Steel Blind Flanges
410 Stainless Steel Blind Flanges
430 Stainless Steel Blind Flanges
430 Stainless Steel Blind Flanges
446 Stainless Steel Blind Flanges
446 Stainless Steel Blind Flanges
904L Stainless Steel Blind Flanges
904L Stainless Steel Blind Flanges

Value Added Services of Blind Flange With Threaded Hole

  • Chemical Analysis – Spectro Analysis
  • Intergranular Corrosion (IGC) Test
  • Hardness Test
  • Chemical Equipment
  • Pitting Resistance Test
  • Positive Material Identification – PMI Testing
  • Micro and MacroTest
  • Flattening Test
  • Mechanical Testing Such as Tensile of Area

Supplier of Austenitic Stainless Steel Raised Face Blind Flange and Ferritic Stainless Steel High Hub Blind Flange in Class 150/ CL 300/ 600 with Visual, dimensional, thickness control

Stainless Steel Blind Flange Dimensions

SS Blind Flange Dimension

Class 150 Blind Flange Dimensions

NPS (Normal Pipe Sizes)"A"
(O.D.) Outside Daimeter
"B"
(Thickness)
"C"
(RF Daimeter)
"D"
(B.C.D.)
# Bolt
Holes
Daimeter of
Bolt Holes
Approx.
Weight In Kg
1/2"3-1/27/161-3/82-3/845/82
3/4"3-7/81/21-11/162-3/445/82
1"4-1/49/1623-1/845/82
1-1/4"4-5/85/82-1/23-1/245/83
1-1/2"511/162-7/83-7/845/83
2"63/43-5/84-3/443/44
2-1/2"77/84-1/85-1/243/47
3"7-1/215/165643/49
3-1/2"8-1/215/165-1/2783/413
4"915/166-3/167-1/283/417
5"1015/167-5/168-1/287/820
6"1118-1/29-1/287/827
8"13-1/21-1/810-5/811-3/487/847
10"161-3/1612-3/414-1/412167
12"191-1/41517121123
14"211-3/816-1/418-3/4121-1/8139
16"23-1/21-7/1618-1/221-1/4161-1/8187
18"251-9/162122-3/4161-1/4217
20"27-1/21-11/162325201-1/4283
24"321-7/827-1/429-1/2201-3/8415
Manufacturer of Chromium Nickel Stainless Steel Flat Face Blind Flange, Martensitic Stainless Steel Blind Flange With Threaded Hole and High Yield Chromium Stainless Steel SAE Blind Flange material with Male/ Female/ RTJ/ Flat/ Raised Face as per MSS SP-44/ EN 1092-2/ JIS B2220/ AS/NZ 4087/ Gost standards

Stainless Steel Reducing Blind Flange Tolerance Chart

Outside Dia ≤ 24=1.6 milimeter | > 24=± 3.2 milimeterInside Dia not applicable
Dia of Contact Face 1.6 milimeter Raised Face=± 0.8 milimeter6.35 milimeter Raised Face, Tongue & Groove / Male-Female=± 0.4 milimeterOutside Dia of Hub ≤ 12=+ 2.4 milimeter / – 1.6 milimeter | ≥ 14=± 3.2 milimeter
Dia of Counterbore not applicableDrilling Bolt Circle=1.6 milimeter | Bolt Hole Spacing=± 0.8 milimeterEccentricity of Bolt Circle with Respect to Facing≤ 2½=0.8 milimeter max. | ≥ 3=1.6 milimeter max.
Thickness ≤ 18=+ 3.2 milimeter / – 0 | ≥ 20=+ 4.8 milimeter / – 0Length thru Hub ≤ 18=+ 3.2 milimeter / – 0.8 milimeter | ≥ 20=+ 4.8 milimeter / – 1.6 milimeter

Buy Ductile Iron Blind Flange Directly From Largest Manufacturers In Mumbai, Check Weight Chart Of SAE Blind Flange

Other Materials Of Blind Flange

Alloy Steel Blind Flange
Alloy Steel Blind Flange
Carbon Steel Blind Flange
Carbon Steel Blind Flange
Copper Nickel Blind Flange
Copper Nickel Blind Flange
Brass Blind Flange
Brass Blind Flange
Inconel Blind Flange
Inconel Blind Flange
Titanium Blind Flange
Titanium Blind Flange
Hastelloy Blind Flange
Hastelloy Blind Flange
Monel Blind Flange
Monel Blind Flange
Alloy 20 Blind Flange
Alloy 20 Blind Flange
Aluminium Blind Flange
Aluminium Blind Flange
Nickel Blind Flange
Nickel Blind Flange
Duplex Blind Flange
Duplex Blind Flange
Super Duplex Blind Flange
Super Duplex Blind Flange
Incoloy Blind Flange
Incoloy Blind Flange
254 Smo Blind Flange
254 Smo BLRF Flanges

PED Certified Stainless Steel Blind Flange Manufacturers in India, Dimensions Of Stainless Steel Reducing Blind Flange In MM.

ASTM A182 SS Blind Flange Types

Stainless Steel Blind Flange
Stainless Steel Blind Flange
BLRF Flanges
BLRF Flanges
Blank Flange
Blank Flange
Stainless Steel Threaded BLRF Flanges
Stainless Steel Threaded BLRF Flanges
SS Rf Blind Flange
SS Rf Blind Flange
Stainless Steel Raised Face Blind Flange
Stainless Steel Raised Face Blind Flange
High Hub BLRF Flanges
High Hub BLRF Flanges
Stainless Steel Flat Face Blind Flange
Stainless Steel Flat Face Blind Flanges
SS Class 300 BLRF Flanges
SS Class 300 BLRF Flanges
Class 150 Blind Flange
Class 150 Blind Flange
Blind Flange With Threaded Hole
Blind Flange With Threaded Hole
Ductile Iron BLRF Flanges
Ductile Iron BLRF Flanges
SAE Blind Flange
SAE Blind Flange
Reducing BLRF Flanges
Reducing BLRF Flanges
Pn16 Blank Flange
Pn16 Blank Flange
2 Inch Blind Flange
2 Inch Blind Flange
12 Inch BLRF Flanges
12 Inch BLRF Flanges
Ductile Iron Blank Flange
Ductile Iron Blank Flange
PN 6, PN 10, PN 16, PN 25, PN 40 pressure Austenitic and Ferritic Stainless Steel Reducing Blind Flange, Class 150/ 300/ 600 and ASME B16.5 SS Blind Flange manufacturer in India in Flat Face/ Raised Face

Blind Flange Facing Types

Type A: flat faceType D: groove faceType G: O Ring recess
Type B: raised faceType E: spigotType H: O Ring groove
Type C: tongue faceType F: recess

Flange facing types C, D, E, F, G and H are not used for PN 2,5 and PN 6.

Flange facing types G and H are only used for PN 10 to PN 40.

Check Hscode Of Pn16 Blank Flange and Blind Flange manufacturers in India In Mumbai, India.

HS Code For SS Blind Flange

HS CodeDescription
73072100Stainless Steel Blind Flange

SP Metals Is Prominent Stainless Steel Blind Flanges Suppliers In South And North America, Europe And West Africa:

Stainless Steel Threaded Blind Flange

Spain, Jakarta, Australia, Jordan.

Stainless Steel Threaded Blind Flange

ASTM A182 Blank Flange

Netherlands, USA, United States, Canada.

ASTM A182 Blank Flange

SS Rf Blind Flange

Germany, Oman, Malaysia, Poland, Qatar.

SS Rf Blind Flange

Stainless Raised Face Blind Flange

Thailand, Finland, Russia, Belgium.

Stainless Raised Face Blind Flange