Duplex steel 2205 Flanges

Types of Flanges

Slip on Flanges

This flanges slipped over the pipe and then fillet welded. slip-on flanges are easy to use in fabricated appications.

Blind flanges

This flanges is used to blank of pipelines, valves and pumps, it can also be used as an inspection cover. it is sometimes refered to as a blanking flanges.

Socket Weld Flanges

This flanges is counter bored to accept the pipe before being fillet welded. The bore of the pipe and flanges are both the same therefore giving good flow charecteristics.

Threaded Flanges

This flanges is referred to as either threaded or screwed. it is used to connect other threaded components low pressure,non-critical applications. no welding is required.

Lap Joint

This flanges are always used with either a stub end or taft which is butt welded to the pipe with the flanges loose behind it. This means the stub end or taft always makes the face. The lap joint is favoured in low pressure applications because it is easily assembled and aligned.To reduce cost these flanges can be supplied without a hub or in treated.

Duplex steel 2205 Flanges Range	15 mm NB upto 1200 mm NB in Schedule 5S, 10S, 10, 20, 40S, 40, STD, 60, 80S, 80, XS, 100, 120, 140, 160 & XXS
Duplex Steel	2205 (UNS No. S31803), 2507 (UNS No. S32750)
Diameter range	1/2” to 12”, DN 15 to DN1200;
Wall Thickness	SCH5S-SCH40S
Surface treatment	Lathe finish Abrasive blasting
Size	1/2"-48"(DN15-DN600)
Standard	ASME B16.9 MSS SP-43 HG205099 HG20621 GB/T12459-2005 GB/T13401 SH3408-96,etc.
Applications	Petroleum/Power/Chemical/Construction/Gas/Metallurgy/Shipbuilding

Duplex stainless 2205 Flanges Chemical Composition

Cr	Ni	Mo	C	N	Mn	Si	P	S	Fe
22.0-23.0	4.50-6.50	3.00-3.50	.030 Max	0.14-0.20	2.00 Max	1.00 Max	.030 Max	.020 Max	Bal

Features

Higher corrosion resistanceconductivity

Fire and heat resistance

Strength to weight advantage

Toughness and impact resistance

Ease of Fabrications

Hygiene

Aesthetic Appearance

Low maintenance cost

Long Term Value

Duplex Steel 2205 Flanges