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Inconel &
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Specializing in ON TIME delivery
of Super Duplex, Duplex, Titanium, 254SMO and Nickel Alloys
When you need an alloy now, call Alloys Now.  863-607-6119
 sales@alloys-now.com
3607 Ventura Dr. East, Lakeland, FL 33811,
USA, Fax: 863-607-6602 |
 
Flanges
Flanges in Duplex - UNS S31803 & S32205
Flanges in Super Duplex - UNS S32750 & S32760
Flanges in 6 Moly - UNS S31254, N08925 &
N08926 |
|
Types |
|
Slip-on |
Socket Weld |
Weld Neck |
Spectacle Blind |
Orifice |
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Threaded |
Reducing |
Lap Joint |
Blind |
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Materials |
Grades |
Sizes |
Designations |
Pressures |
|
Titanium |
TI Grade 2 UNS R50400
Ti Grade 7 UNS R52400 |
1/2" - 24" |
Sch 10S > Sch 160 |
150lbs > 600lbs |
Duplex SS
Ferritic Austenitic |
UNS S31803
UNS S32205 |
1/2" - 60" |
Sch 10S > Sch XXS |
150lbs > 2500lbs
API 6BX 5K, 10K, 15K |
Super Duplex SS
Ferritic Austenitic |
UNS S32750
UNS S32760
UNS S32550 |
1/2" - 36" |
Sch 10S > Sch XXS |
150lbs > 2500lbs
API 6BX 5K, 10K, 15K |
6% Molydenum SS
Super Austenitic |
UNS S31254
UNS N08926
UNS N08867 |
1/2" - 36" |
Sch 10S - Sch XXS |
150lbs > 2500lbs
API 6BX 5K, 10K, 15K |
|
SS 317L |
UNS S31703 |
1/2" - 60" |
Sch 10S - Sch XXS |
150lbs > 2500lbs
API 6BX 5K, 10K, 15K |
|
Alloy 625 (Inconcel®) |
UNS N06625 |
1/2" - 36" |
Sch 10S - Sch XXS |
150lbs > 2500lbs
API 6BX 5K, 10K, 15K |
|
Alloy C276 (Hastelloy®) |
UNS N10276 |
1/2" - 36" |
Sch 10S - Sch XXS |
150lbs > 2500lbs
API 6BX 5K, 10K, 15K |
|
Alloy 400 (Monel®) |
UNS N04400 |
1/2" - 36" |
Sch 10S - Sch XXS |
150lbs > 2500lbs
API 6BX 5K, 10K, 15K |
|
Alloy 20 |
UNS N08020 |
1/2" - 36" |
Sch 10S - Sch XXS |
150lbs > 2500lbs
API 6BX 5K, 10K, 15K |
|
SS 304h |
UNS S30409 |
1/2" - 60" |
Sch 10S - Sch XXS |
150lbs > 2500lbs
API 6BX 5K, 10K, 15K |
|
SS 321H |
UNS S32109 |
1/2" - 60" |
Sch 10S - Sch XXS |
150lbs > 2500lbs
API 6BX 5K, 10K, 15K |
|
SS 347H |
UNS S34709 |
1/2" - 60" |
Sch 10S - Sch XXS |
150lbs > 2500lbs
API 6BX 5K, 10K, 15K |
|
Maximum Allowable non-shock Pressure (psig) |
Temperature
(oF) |
Pressure Class (lb.) |
|
150 |
300 |
400 |
600 |
900 |
1500 |
2500 |
|
Hydrostatic Test Pressure (psig) |
|
450 |
1125 |
1500 |
2225 |
3350 |
5575 |
9275 |
|
-20 to 100 |
285 |
740 |
990 |
1480 |
2220 |
3705 |
6170 |
|
200 |
260 |
675 |
900 |
1350 |
2025 |
3375 |
5625 |
|
300 |
230 |
655 |
875 |
1315 |
1970 |
3280 |
5470 |
|
400 |
200 |
635 |
845 |
1270 |
1900 |
3170 |
5280 |
|
500 |
170 |
600 |
800 |
1200 |
1795 |
2995 |
4990 |
|
600 |
140 |
550 |
730 |
1095 |
1640 |
2735 |
4560 |
|
650 |
125 |
535 |
715 |
1075 |
1610 |
2685 |
4475 |
|
700 |
110 |
535 |
710 |
1065 |
1600 |
2665 |
4440 |
|
750 |
95 |
505 |
670 |
1010 |
1510 |
2520 |
4200 |
|
800 |
80 |
410 |
550 |
825 |
1235 |
2060 |
3430 |
|
850 |
65 |
270 |
355 |
535 |
805 |
1340 |
2230 |
|
900 |
50 |
170 |
230 |
345 |
515 |
860 |
1430 |
|
950 |
35 |
105 |
140 |
205 |
310 |
515 |
860 |
|
1000 |
20 |
50 |
70 |
105 |
155 |
260 |
430 |
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|
Slip-On Flanges
Slipped over pipe and then welded both inside
and outside to provide sufficient strength and prevent leakage.
Used in preference to weld necks due to lower cost and less accurate
requirements when cutting the pipe to length. |
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Blind Flanges
Without a bore, the blind flange is used to shut
off a piping system or vessel opening. Permits easy access for
inspection purposes. Can be supplied with or without hubs at
the manufacturers option. |
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Weld-Neck Flanges
Designed to be joined to a piping system with
butt welding. Although relatively expensive due to long neck,
preferred for high stress applications. The bore of the flange
matches the bore of the pipe, reducing turbulence and erosion. |
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Threaded Flanges
Similar to slip-on but bore is threaded enabling
assembly without welding which obviously limits use to relatively
low pressure systems. May be welded along joint after assembly,
but not considered satisfactory method of increasing applications. |
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Socket Weld Flanges
Similar to slip-on in outline but bore is counter-bored
to accept pipe with the diameter of the remaining bore the same
as the inside diameter of the pipe. Attached to the pipe by a
fillet weld around the hub and an optional interval weld can
be applied in high stress applications. Often used in high pressure
systems such as hydraulics & steam lines. |
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|
Lap-Joint Flanges
Similar to slip-on flange, but has a radius at
the intersection of the bore and the flange face to accommodate
a lap stub end. Face on stub end forms the gasket face of the
flange. Used when sections of piping needs to be dismantled quickly
and easily for inspection or replacement. |
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Orifice Flanges
Provides access for metering off gases or liquids.
Clamps between a pair of flanges when installed in line and is
referred to as an orifice flange union. Jack-screws facilitate
removal of orifice plate. |
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Spectacle Blank
Also called a Figure 8 Blank, the Spectacle Blank
is a pressure retaining plate with one solid end and one open
end connected with a web or tie-bar. Open end forms seal between
two flanges for normal flow of fluid through pipe work, and swinging
solid end into position halts flow. |
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