A plate flange is a flat, circular disc welded to a pipe's end enabling the flange to be bolted to another pipe. It is often referred to as flat flange, plain flange and flange slip, etc. Two plate flanges can be bolted together with a gasket in between them, usually used in fuel and water pipelines.
We HT PIPE is the manufacture that provide all kinds of steel flanges like Plate flat Flanges, Weld Neck Flanges, Slip On Flanges, Socket Weld Flanges, and so on, and also other special flanges according to the client's requirement.
Plate Flange Specification:
| Standard |
Type |
Class |
Size |
| EN1092-1:2002 |
Plate flange for welding/loose plate flange with weld-on plate collar
or for lapped pipe end/Blind Flange/WN flange |
PN2.5-PN100 |
DN10-DN4000 |
| JIS B2220 |
Welding Flange, Lap joint flange, threaded flange |
PN6-PN100 |
DN10-DN1500 |
| Other |
WN/LWN/SO/SW/blind/plate/threaded/anchor/swivel/girth/lap joint/reducing/orifice |
| spectacle blind/paddle blind/spacer ring/orifice plate/bleed ring |
| Speical Products: Rings/Forgings/Disc/Shaft Sleeve |
| Sealing Surface |
RF FF RTJ TF GF LF LM |
| Flange Face Finish |
Stock Finish/Spiral Serrated/Concentric Serrated/Smooth Finish(Ra 3.2 and 6.3 micrometers) |
| 125-250 AARH(it is called smooth finish) |
| 250-500 AARH(it is called stock finish) |
| Coating |
Vanish, yellow paint, anti-rust oil, galvanizing etc |
Plate Flange Material Grades:
| Carbon Steel |
ASTM /ASME A/SA105(N), A350 LF2/LF3, A694 F52, F56, F60, F65, F70 |
| Alloy Steel |
ASTM/ASME A/SA 182 F5, F9, F11, F22, F91 |
| Stainless Steel |
ASTM/ASME A/SA 182 F304, 304L, 304H, 310H, 316, 316H, 316L,
316Ti, 317, 317L, 321, 321H, 347, 347H, 904L |
Duplex and
Super Duplex |
ASTM/ASME A/SA 182 F44, F45, F51, F53, F55, F60, F61,
S31803, S32205, S32550, S31254, SMO254, S32750, S32760, S32950 |
| Nickel Alloy Steel |
ASTM/ASME B/SB 564 UNS N02200(NICKEL 200), UNS N04400, (MONEL 400),
UNS N08825( INCOLOY 825), UNS N06600(INCONEL 600), UNS N06601(INCONEL 601),
UNS N06625(INCONEL 625), UNS N10276(HASTELLOY C276) |
| ASTM/ASME B/SB160 UNS N02201(NICKEL 201), ASTM B/SB472 UNS N08020(Alloy 20) |
| Copper Alloy |
ASTM/ASME B/SB151 UNS N07060, 71500, C70600(CuNi 90/10), C71500(CuNi 70/30) |
| Titanium |
ASTM/ASME B/SB381 Grade 2, Grade 5, Grade 7 |
Manufacturer, exporter & supplier of ASME/ANSI B16.5 Carbon steel Plate Flanges, Alloy steel Plate Flange, Nickel alloy steel Plate flange, Stainless steel Plate Flange, Duplex steel Plate Flange, ASTM A105/105N, ASTM A350 Lf2, ASTM A694, ASTM A182, ASTM B564 Plate flanges manufaturer in Zhengzhou HT PIPE.
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