P355QH1 Steel Flange

P355QH1 Steel Flange

Leading EN 10222-4 P355QH1 Slip On Flange Manufacturer in India, Check DIN 1.0571 WNRF Flange Sizes and Price list

A P355QH1 grade is a quenched steel module. The P355QH1 Steel Flange is designed with a chemical composition of carbon, silicon, manganese, nickel, phosphorous, sulfur, chromium, molybdenum, vanadium, nitrogen, niobium, aluminum, and copper. The content embedded in these flanges gives them good strength and corrosion resistance properties. A Carbon Steel EN 10222-4 Grade P355QH1 Forged Flange is manufactured at extreme temperatures and has enhanced mechanical properties. These flanges possess a tensile strength between 470 to 630mpa, with a yield strength between 275 to 355mpa, and can be elongated by 21% in the system.

Get Refer Price list and weight chart of EN 1.0571 Plate Flange, Supplier of P355QH1 Flanges in Mumbai

The EN 10222-4 P355QH1 Slip On Flange is a versatile flange that is slid on the pipe and welded, making use of one or more fillet welds. These cost-effective flanges work well in low pressure and temperature applications. A DIN 1.0571 Blind Flange is designed without a face or a boring center. These flanges help in terminating the flow of fluids and gases at the end of hydraulic systems. They are bolted in place, allowing room for inspection and maintenance. The robust EN 1.0571 Threaded Flange is threaded on its interior and subsequently aligned to the threads on the pipe fixture. These flanges don’t need to be welded in place; however, they are generally seen in low pressure and temperature applications. The EN 1.0571 Plate Flange is a flat or circular disc that is welded at the end of the pipe followed by bolting them with other pipe grades. These plates are bolted directly to the pipe by fitting a gasket between them. To ensure they fit with the gasket, the flanges have a serrated surface finish allowing them to fit perfectly. These flanges are quality assured and make use of the latest technology and the best raw materials under the guidance of our renowned technicians.

EN 1.0571 Threaded Flange supplier in India, offers Carbon Steel EN 10222-4 Grade P355QH1 Forged Flange Final visual inspection reports with each order

P355QH1 Steel Flange

P355QH1 Steel Flange


EN 10222-4 P355QH1 Slip On Flange

EN 10222-4 P355QH1 Slip On Flange


DIN 1.0571 WNRF Flange

DIN 1.0571 WNRF Flange



P355qh1 Steel Flange Specification

Specification P355QH1 Steel Flange
Flanges Equipment Pushing/ electric bevelling/ Press/ Bending and Sand-blasting machine
Forging Methods Forging/ Casting/ Cutting/ Rolling
Applications Bitumen upgraders
Heavy oil refineries.
Nuclear power
Petrochemicals and acids.
EN Standard 10Bar/ 6Bar/ 16Bar/ 40Bar/ 25Bar
Coating Zinc Plated/ Anti rust Paint/ Oil Black Paint/ Hot and Cold Dip Galvanized/ Yellow Transparent
DIN Standard PN10/ PN6/ PN16/ PN40/ PN25/ PN64
Test Certificate EN 10204/3.1B
Raw Material Certificates
100% Radiography Tests Report
Third Party Inspection Report
UNI Standard 10/ 6/ 16/ 40/ 25 Bar
Production Technique Heat treated/ Machined/ Forged
Supporting Material Ring Joint/ Gasket/ Flange Bolts
Manufacturer of Threaded/ Screwed / Forged/ Plate
Flange Tests UI trasonic flaw detector/ Hydrostatic testing machine/ X ray detector/ Magnetic particle detector/ Direct-reading Spectrograph
Schedule Schedule 5S upto XXS
Manufacturer Length NPS 1⁄₂" upto NPS 48”
Standards and Dimension EN 1092-2/ 1092-1/ API
Face Type FF/ RTJ/ RF/ Male & Female / lap joint/ Tongue & Groove.

EN 1092-1 P355QH1 Welding Neck Flanges Price

Nominal Diam. Pressure Pitch Circle Diam. (mm) Pipe Nominal size (mm) Standards Thread holes Price (INR) Per Piece
DN 20 P355QH1 75 3/4" (26,9) EN 1092-1 4 x 14 mm Ø 556.00
DN 25 - 85 1" (33,7) - 4 x 14 mm Ø 654.00
DN 32 - 100 1.1/4" (42,4) - 4 x 18 mm Ø 866.00
DN 40 - 110 1.1/2" (48,3) - 4 x 18 mm Ø 1550.00
DN 50 - 125 2" (60,3) - 4 x 18 mm Ø 4376.00
DN 65 - 145 76,1 - 4 x 18 mm Ø 1252.00
DN 80 - 160 88,9 - 8 x 18 mm Ø 5980.00
DN 100 - 180 108 - 8 x 18 mm Ø 2673.00
DN 100 - 180 114,3 - 8 x 18 mm Ø 2592.00
DN 125 - 210 133 - 8 x 18 mm Ø 3979.00
DN 125 - 210 139,7 - 8 x 18 mm Ø 3659.00

P355qh1 Material Types

P355qh1 Forged Flange

P355qh1 Forged Flange

P355qh1 Flange

P355qh1 Flange

En 10222-4 Grade P355qh1 Flange

En 10222-4 Grade P355qh1 Flange

En 10222-4 P355qh1 Flange

En 10222-4 P355qh1 Flange

En 1092-1 P355qh1 Weld Neck Flange

En 1092-1 P355qh1 Weld Neck Flange

P355qh1 Steel Blind flange

P355qh1 Steel Blind flange

P355qh1 Quenched Steel Socket Weld Flange

P355qh1 Quenched Steel Socket Weld Flange

Steel P355qh1 Slip On Flange

Steel P355qh1 Slip On Flange

Werkstoff P355qh1 Threaded Flange

Werkstoff P355qh1 Threaded Flange


En 10222-4 P355qh1 Flange Dimensions

En 10222-4 P355qh1 Flange Dimensions

Flange Size (mm) Flange Size (inche) Outer Diam. (inche) Inner Diam. (inche) Weight lbs Outer Diam. (mm) Ø B.H.C. In (inche) Inner Diam. (mm) Ø B.H.C. In (mm) # B.H. Weight Kg Ø B.H. (inche) Thickness (inche) Ø B.H. (mm) Thickness (mm)
200 8.0 13.39 8.72 21.0 340 11.61 221.50 295 12 9.5 0.870 1.020 22 26
250 10.0 15.94 10.88 31.0 405 13.97 276.40 355 12 14.1 1.020 1.140 26 29
300 12.0 18.11 12.88 42.7 460 16.14 327.20 410 12 19.4 1.020 1.260 26 32
350 14.0 20.47 14.19 62.3 520 18.50 360.40 470 16 28.3 1.020 1.380 26 35
400 15.0 22.83 16.19 80.5 580 20.67 411.20 525 16 36.5 1.180 1.500 30 38
450 17.0 25.20 18.19 110.3 640 23.03 462.00 585 20 50.1 1.180 1.650 30 42
500 19.0 28.15 20.19 141.5 715 25.59 512.80 650 20 64.2 1.300 1.810 33 46
600 24.0 33.07 24.19 213.5 840 30.32 614.40 770 20 96.9 1.420 2.050 36 52

Gaskets For En 10222-4 Grade P355qh1 Flanges

(Normal Size Of Pipes) In Inch (I.D.) Inner Daimeter Gasket
(O.D.) Outer Daimeter Gasket
Class 150#/ LB Class 300#/ LB Class 400#/ LB Class 600#/ LB Class 900#/ LB
1/2 0.84 1.875 2.125 2.125 2.125 2.50
3/4 1.06 2.25 2.625 2.625 2.625 2.75
1 1.31 2.625 2.875 2.875 2.875 3.125
1 1/4 1.66 3 3.25 3.25 3.25 3.50
1 1/2 1.91 3.375 3.75 3.75 3.75 3.875
2 2.38 4.125 4.375 4.375 4.375 5.625
2 1/2 2.88 4.875 5.125 5.125 5.125 6.50
3 3.50 5.375 5.875 5.875 5.875 6.625
4 4.50 6.875 7.125 7.00 7.625 8.125
5 5.56 7.75 8.50 8.375 9.50 9.75
6 6.62 8.75 9.875 9.75 10.50 11.375
8 8.62 11 12.125 12.00 12.625 14.125
10 10.75 13.375 14.25 14.125 15.75 17.125
12 12.75 16.125 16.625 16.50 18.00 19.625

P355qh1 Slip On Flanges Tolerance

P355N Steel Flanges Diameter Tolerance
(D) Inner Dia.
  • 10 Inches and smaller: ±1/32" (0.8 in millimeter)
  • 12 Inches thru 18": +1/8" (3.2 in millimeter)
  • 20 Inches and larger: -1/16" (1.6 in millimeter)
(A) Outer Dia.
  • When Outer Diameter is 24 Inch or less: ±1/16" (1.6 millimeter)
  • When Outer Diameter is over 24": ±1/8" (3.2 millimeter)
(C) (W.T.)
  • 18 inch or smaller: ±1/8" (3.2 millimeter), -0"
  • 20 inch or larger: ±3/16" (4.8 millimeter), -0"
(B) Contact Face
  • 1/16" (RF): ±1/32" (0.8 millimeter)
  • 1/4" (RF), Tongue And Groove (male And female): ±1/64" (0.4 millimeter)
(H) Dia. of hub at point of welding
  • 5 inch or smaller: +3/32" (2.4 millimeter), -1/32" (0.8 mm)
  • 6 inch or larger: +5/32" (4.0 mm), -1/32 (0.8 millimeter)
(J) Hub At Base Dai.
  • When hub base is 24 inches or smaller: ±1/16" (1.6 mm)
  • When hub base is over 24": ±1/8" (3.2 mm)
Eccentricity of (bc) with respect to facing
  • 2 1/2" or smaller ±1/32" (0.8 millimeter) max.
  • 3" or larger ±1/16" (1.6 millimeter) max.
(P) Drilling
  • (B.C.): ±1/16" (1.6 millimeter)
  • (B.H.) spacing: ±1/32" (0.8 millimeter)
(K) hub Length
  • 10 Inch or smaller: ±1/16" (1.6 mm)
  • 12 Inch or larger: ±1/8" (3.2 mm)

P355qh1 Equivalent ASTM Material

Grade P355QH1 Steel Flange
Classifications Non-alloy steel
Werkstoff No. 1.0571

P355qh1 Temperature

Temp.
°C
Rp0.2
min MPa
100<T≤250
Rp0.2
min MPa
70<T≤100
Rp0.2
min MPa
250<T≤400
50 285 305 266
100 268 287 250
150 249 265 232
200 228 244 213
250 209 224 195
300 192 206 179
350 178 190 166
400 167 179 156

Steel P355qh1 Flange Electrical Resistivity

Property Value Temperature
Electrical resistivity 1.82E-7 Ω·m -100.0 °C
- 2.96E-7 Ω·m 100.0 °C
- 2.47E-7 Ω·m 20.0 °C
- 3.68E-7 Ω·m 200.0 °C
- 5.56E-7 Ω·m 400.0 °C
- 4.55E-7 Ω·m 300.0 °C

P355qh1 Quenched Steel Blind Flanges Sizes Chart

Pipe Normal Size DN
3/4 20
1/2 15
1 25
1 1/2 40
1 1/4 32
2 50
3 80
2 1/2 65
4 100

P355qh1 Chemical Composition

Elements Composition, %
Cr ≤0.30
N ≤0.015
Cu ≤0.30
Nb ≤0.05
Mo ≤0.25
Ni ≤0.50
Al ≥0.020
Nb+V ≤0.12
V ≤0.10
CE ≤0.47
C ≤0.18
Si ≤0.40
P ≤0.025
Mn 0.90-1.50
S ≤0.010

Check p355qh1 en 10222-4 Socket Weld Flange and W.Nr. 1.0571 Lap Joint Flange Sizes, Dimensions and Weight chart

Werkstoff P355qh1 Physical Properties

Thermal conductivity
(W/m·°C)
(Ω mm²/m)Specific electrical resistivity
Poisson’s coeff., ν (kg/dm³) Density
Temp.
(°C)
Mean coef. of thermal expansion 10-6/(°C) between 20(°C) (GPa) Modulus of elasticity
Specific thermal capacity
(J/kg·°C)
0.24 - 11 - -
13.3 - 897 - 276 324
23.2 142 434 468 23 -

Facing Type Of Carbon Steel P355qh1 Flange

P355n TC1 EN 10216-3 Flange Facing Type

  • Type B: Raised Face (RF)
  • Type A: Flat Face (FF)
  • Type D: Grooved Face (GF)
  • Type C: Tongue Face (TF)
  • Type F: Recess
  • 1Type E: Spigo
  • Type H: O-Ring Groove
  • Type G: Ring Recess

P355qh1 Mechanical Properties

P355qh1 Mechanical Properties

Torque Values For En 1092-1 P355qh1 Welding Neck Flanges

CS Pipe Flanges Size (MM) CS Pipe Flanges Size (Inches) (Max) Radial Projection
Deeper Than the Bottom (mm) No Deeper Than the Bottom (mm)
15 1/2 1.5 3.0
20 3/4 1.5 3.0
25 1 1.5 3.0
32 1 1/4 1.5 3.0
40 1 1/2 1.5 3.0
50 2 1.5 3.0
65 2 1/2 1.5 3.0
80 3 1.5 4.5
90 3 1/2 3.0 6.0
100 4 3.0 6.0
125 5 3.0 6.0
150 6 3.0 6.0
200 8 4.5 8.0
250 10 4.5 8.0
300 12 4.5 8.0
350 14 4.5 8.0
400 16 4.5 10.0
450 18 6.0 12.0

P355qh1 EN 10222-4 Tensile Requirements

Tensile Tests Requirement
ReH(100<T≤250) ≥295
ReH(70<T≤100) ≥315
ReH(250<T≤400) ≥275
A(longitudinal) ≥21
Rm 470~630
A(transverse) ≥19

Buy DIN 1.0571 Blind Flange and P355QH1 Weld Neck Flange directly from manufacturers, get free sample

Bolt Size Of Grade P355qh1 Flange

Bolt Size Of Grade P355qh1 Flange

Flange P355qh1 Thermal Expansion

Property Temperature Value
Coeff. of thermal expansion -100.0 °C 1.08E-5 1/K
- 100.0 °C 1.25E-5 1/K
- 20.0 °C 1.19E-5 1/K
- 200.0 °C 1.3E-5 1/K
- 400.0 °C 1.41E-5 1/K
- 300.0 °C 1.36E-5 1/K
- 500.0 °C 1.45E-5 1/K

Quenched CS P355qh1 Flanges Applications

  • Specialty Chemicals
  • Power Generation
  • Condensers
  • Chemical Equipment
  • Pulp and Paper Industry
  • Gas Processing
  • Pharmaceutical Equipment
  • Sea Water Equipment
  • Petrochemicals
  • Off-Shore Oil Drilling Companies
  • Pharmaceuticals
  • Heat Exchangers

Weldable Fine Grain Steels Flange Weight Chart

Class Pressure Nominal Pipe Size Slip On (SORF) Threaded (NPT) Socket Weld (SWRF) Lap Joint (LOOSE) Blind (BLRF) Weld Neck (WNRF)
Class 300 Flange ½ 2 2 3 2 2 2
¾ 3 3 3 3 3 3
1 3 3 3 3 4 4
4.5 4.5 4 4.5 6 5
6.5 6.5 6 6.5 7 7
2 7 7 7 7 8 9
10 10 10 10 12 12
3 13 14 13 14.5 16 18
17 17 17 17 21 20
4 23.5 24 22 24 28 26.5
5 29 31 28 28 37 36
6 39 39 39 39 50 45
8 58 58 58 58 81 69
10 81 81 81 91 124 100
12 115 115 115 140 185 142
14 165 165 165 190 250 206
16 210 220 190 234 315 250
18 253 280 250 305 414 320
20 315 325 315 375 515 400
22 370 370 370 435 640 465
24 490 490 475 550 800 580
Class Pressure Nominal Pipe Size Slip On (SORF) Threaded (NPT) Socket Weld (SWRF) Lap Joint (LOOSE) Blind (BLRF) Weld Neck (WNRF)
Class 900 Flange ½ 6 6 6 6 4 7
¾ 6 6 6 6 6 7
1 7.5 7.5 7.5 7.5 9 8.5
10 10 10 10 10 10
14 14 14 14 14 14
2 22 22 22 21 25 24
31 31 31 25 32 31
3 36 36 36 29 35 36
4 53 53 53 51 54 53
5 83 83 83 81 87 86
6 110 110 110 105 115 110
8 172 172 172 190 200 187
10 245 245 245 277 290 268
12 326 326 326 371 415 372
14 400 400 400 415 520 562
16 459 459 459 488 619 685
18 647 647 647 670 880 924
20 792 792 792 868 1107 1164
24 1480 1480 1480 1659 2099 2107
Class Pressure Nominal Pipe Size Slip On (SORF) Threaded (NPT) Socket Weld (SWRF) Lap Joint (LOOSE) Blind (BLRF) Weld Neck (WNRF)
Class 400 Flange ½ 2 2 2 2 2 3
¾ 3 3 3 3 3 3.5
1 3.5 3.5 3.5 3.5 4 4
4.5 4.5 4.5 4.5 6 4.5
6.5 6.5 6.5 6.5 8 8
2 8 8 8 8 10 10
12 12 12 11 15 14
3 15 15 15 14 20 18
21 21 21 20 29 26
4 26 26 26 25 33 35
5 31 31 31 29 44 43
6 44 44 44 42 61 57
8 67 67 67 64 100 89
10 91 91 91 110 155 125
12 130 130 130 152 226 175
14 191 191 191 210 310 233
16 253 253 253 280 398 295
18 nbsp; 310 310 310 345 502 360
20 378 378 378 420 621 445
22 405 405 405 455 720 505
24 539 539 539 615 936 640
Class Pressure Nominal Pipe Size Slip On (SORF) Threaded (NPT) Socket Weld (SWRF) Lap Joint (LOOSE) Blind (BLRF) Weld Neck (WNRF)
Class 1500 Flange ½ 6 6 6 6 4 7
¾ 6 6 6 6 6 7
1 8 8 8 8 9 9
10 10 10 10 10 10
14 14 14 14 14 14
2 25 25 25 25 25 25
36 36 36 35 35 36
3 48 48 48 47 48 48
4 73 73 73 75 73 73
5 132 132 132 140 140 132
6 165 165 165 170 160 165
8 260 260 260 286 302 275
10 436 436 436 485 510 455
12 667 667 667 749 775 690
14 940 940 940 890 975 940
16 1250 1250 1250 1250 1300 1250
18 1625 1625 1625 1475 1750 1625
20 2050 2050 2050 1775 2225 2050
24 2825 2825 2825 2825 3625 3325
Class Pressure Nominal Pipe Size Slip On (SORF) Threaded (NPT) Socket Weld (SWRF) Lap Joint (LOOSE) Blind (BLRF) Weld Neck (WNRF)
Class 150 Flange ½ 1 1 2 1 2 2
¾ 2 2 2 2 2 2
1 2 2 2 2 2 3
3 3 3 3 3 3
3 3 3 3 4 4
2 5 5 5 5 5 6
8 8 8 8 7 10
3 9 9 9 9 9 11.5
11 12 11 11 13 12
4 13 13 13 13 17 16.5
5 15 15 15 15 20 21
6 19 19 19 19 27 26
8 30 30 30 30 47 42
10 43 43 43 43 70 54
12 64 64 64 64 123 88
14 90 90 90 105 140 114
16 106 98 98 140 180 140
18 130 130 130 160 220 165
20 165 165 165 195 285 197
22 185 185 185 245 355 225
24 220 220 220 275 430 268
Class Pressure Nominal Pipe Size Slip On (SORF) Threaded (NPT) Socket Weld (SWRF) Lap Joint (LOOSE) Blind (BLRF) Weld Neck (WNRF)
Class 600 Flange ½ 2 2 2 2 3 3
¾ 3 3 3 3 4 4
1 4 4 4 4 4 4
5 5 5 5 6 6
7 7 7 7 8 8
2 9 9 9 9 10 12
13 13 13 12 15 18
3 16 16 16 15 20 23
21 21 21 20 29 26
4 37 37 37 36 41 42
5 63 63 63 63 68 68
6 80 80 80 78 86 81
8 115 15 15 112 140 120
10 177 177 177 195 231 190
12 215 215 215 240 295 226
14 259 259 259 290 378 347
16 366 366 366 400 527 481
18 476 476 476 469 665 555
20 612 612 612 604 855 690
22 590 590 590 670 1000 720
24 876 876 876 866 1250 977
Class Pressure Nominal Pipe Size Slip On (SORF) Threaded (NPT) Socket Weld (SWRF) Lap Joint (LOOSE) Blind (BLRF) Weld Neck (WNRF)
Class 2500 Flange ½ …. 7 …. 7 7 8
¾ …. 9 …. 8 10 9
1 …. 12 …. 12 12 13
…. 18 …. 17 18 20
…. 25 …. 24 25 28
2 …. 38 …. 37 39 42
…. 55 …. 53 56 52
3 …. 83 …. 80 86 94
4 …. 127 …. 122 133 146
5 …. 210 …. 204 223 244
6 …. 323 …. 314 345 378
8 …. 485 …. 471 533 576
10 …. 925 …. 897 1025 1068
12 …. 1300 …. 1262 1464 1608

P355qh1 EN 10222-4 Yield Strength

Property Value Temperature
Yield properties 275 - 355 MPa 20.0 °C

P355qh1 Carbon Steel Flange Thickness Chart

Outer Diam. Pipe Normal Size 100 SCH 20 SCH STD Wall 40 SCH 10 SCH 140 SCH XX Hvy 60 SCH 160 SCH EXT Hvy 30 SCH 80 SCH 120 SCH
0.84 ½ ... ... 0.109 0.109 0.083 ... 0.294 ... 0.188 0.147 ... 0.147 ...
1.05 ¾ ... ... 0.113 0.113 0.083 ... 0.308 ... 0.219 0.154 ... 0.154 ...
1.315 1 ... ... 0.133 0.133 0.109 ... 0.358 ... 0.25 0.179 ... 0.179 ...
1.66 1 ¼ ... ... 0.14 0.14 0.109 ... 0.382 ... 0.25 0.191 ... 0.191 ...
1.9 1 ½ ... ... 0.145 0.145 0.109 ... 0.4 ... 0.281 0.2 ... 0.2 ...
2.375 2 ... ... 0.154 0.154 0.109 ... 0.436 ... 0.344 0.218 ... 0.218 ...
2.875 2 ½ ... ... 0.203 0.203 0.12 ... 0.552 ... 0.375 0.276 ... 0.276 ...
3.5 3 - - 0.216 0.216 0.12 - 0.6 - 0.438 0.3 - 0.3 -
4 3 ½ - - 0.226 0.226 0.12 - 0.636 - - 0.318 - 0.318 -
4.5 4 - - 0.237 0.237 0.12 - 0.674 - 0.531 0.337 - 0.337 0.438
5.563 5 - - 0.258 0.258 0.134 - 0.75 - 0.625 0.375 - 0.375 0.5
6.625 6 - - 0.28 0.28 0.134 - 0.864 - 0.719 0.432 - 0.432 0.562
8.625 8 0.594 0.25 0.322 0.322 0.148 0.812 0.875 0.406 0.906 0.5 0.277 0.5 0.719
10.75 10 0.719 0.25 0.365 0.365 0.165 1 1 0.5 1.125 0.5 0.307 0.594 0.844
12.75 12 0.844 0.25 0.375 0.406 0.18 1.125 1 0.562 1.312 0.5 0.33 0.688 1
14 14 0.938 0.312 0.375 0.438 0.25 1.25 - 0.594 1.406 0.5 0.375 0.75 1.094
16 16 1.031 0.312 0.375 0.5 0.25 1.438 - 0.656 1.594 0.5 0.375 0.844 1.219
18 18 1.156 0.312 0.375 0.562 0.25 1.562 - 0.75 1.781 0.5 0.438 0.938 1.375
20 20 1.281 0.375 0.375 0.594 0.25 1.75 - 0.812 1.969 0.5 0.5 1.031 1.5
22 22 - - 0.375 - 0.25 - - - - 0.5 - - -
24 24 1.531 0.375 0.375 0.688 0.25 2.062 - 0.969 2.344 0.5 0.562 1.219 1.812
26 26 - - 0.375 - - - - - - 0.5 - - -
30 30 - 0.5 0.375 - 0.312 - - - - 0.5 0.625 - -

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