Duplex Steel F51 (UNS S31803) Blind Flange, A182 F51 Blind Flange

• Customization: Available
• Standard: ANSI, DIN, JIS
• Type: Welding Flange
• Model NO.: Duplex Steel F51 (UNS S31803)
• Structure: Flanges
• Connection: Welding
• Sealing Surface: RF
• Manufacturing Way: Forging
• Duplex Stainless Steel Flange: F51
• Duplex Steel: 2205
• Transport Package: Wooden Case
• Specification: B16.5 B16.9 API605
• Trademark: C&N
• Origin: China
• HS Code: 7307910
• Production Capacity: 400ton/Month

Product Description

C&N is a  professional manufacturer of steel forged flange in China,
duplex stainless stainless steel :A 182  Duplex F51/F53/F44/F55/F60/F61       


Technical Data Sheet
 

Chemical Composition Limits
Weight%	C	Mn	P	S	Si	Cr	Ni	Mo	N
Duplex F51	0.03 max	2.0 max	0.03 max	0.02 max	1 max	21-23	4.5-6.5	2.5-3.5	0.80-0.20

F51 Duplex Stainless Steel combines improved resistance to stress corrosion cracking, pitting, crevice corrosion and high strength. Due to it's chemical composition F51 duplex stainless steel resists chloride environments and sulphide stress corrosion. 
Our production scope:

 

Type	slip on flange, Weld Neck Flange Threaded Flange Blind Flange,  Orifice Flange socket weld flange, Spacer Ring, Paddle, Spectacle Blind Flange
Material	stainless steel :A 182 F 304/304L/316/316L/321/347, Duplex F51/F53/F44/F55/F60/F61  Alloy steel :STM A694/ A694M F42/F46/F52/F56/F60/F70,A182  F5,F9,F11,F22             Carbon steel:ASTM A 105, ST37.2   A 350 LF1, LF2, LF3,API 6A AISI 4130
Standard	ASTM/ASME/ANSIB16.5, B16.47, ASME/ANSIB16.48, JIS/KS (5K, 10K, 16K, 20K), DIN2633, DIN2634, DIN2635,EN1092,BS4504,AWWA C206,API 6A ,Customized drawings welcomed
Size	1/2" - 120 " (DN15-DN3000)
Pressure	Class150-Class2500 JIS 5k-30k DIN 6bar-40bar
Face type	FF,RF,RTJ
Surface Treatment	Surface galvanized, antirust coating, Epoxy & FBE Coating,protected with plastic caps
Packing	Pallet/Wooden case(Fumigation free)
Certificate	ISO9001,PED,EN10204 3.1 MTC
Quality control	In house and third party