A182-F51/UNS S31803/1.4462/SAF 2205 Forged Forging Oil Gas measurement valve Spools Ultrasonic flow meter bodies Body

We are professional A182-F51(UNS S31803,1.4462,SAF 2205)Forged Forging Oil Gas measurement valve Spools Ultrasonic flow meter bodies Body from china

• 2205 duplex stainless steel is a cost effective solution for many applications where the 300 series stainless steels are susceptible to chloride stress corrosion cracking. Stress corrosion cracking occurs when stainless steels are subjected to tensile stress, while in contact with solutions containing chlorides. Increasing temperatures also increase the susceptibility of stainless steels to stress corrosion cracking.

  The combination of chromium, molybdenum and nitrogen convey the good resistance of 2205 to chloride pitting and crevice corrosion. This resistance is extremely important for services such as marine environments, brackish water, bleaching operations, closed loop water systems and some food processing applications. The high chromium, molybdenum and nitrogen contents of 2205 provide corrosion resistance superior to common stainless steels, such as, 316L and 317L in most environments.

  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	Balance

  What are the characteristics of Duplex 2205?

• High resistance to chloride stress corrosion cracking

• Resistance to chloride pitting and crevice corrosion

• Good general corrosion resistance

• Good sulfide stress corrosion resistance

• High Strength

• Good weldability and workability

• In what applications is Duplex 2205 used?

• Chemical process vessels, piping and heat exchangers

• Pulp mill digesters, bleach washers, chip pre-steaming vessels

• Food processing equipment

• Oil field piping and heat exchangers

• Flue gas desulfurization equipment

Product Flow

1.Inquiry with drawings in details.
2.Confirm steel material, chemical compositions, mechanical properties, tolerance.
3.Confirm payment terms,order materials or check material in stock.
4.Check material chemical compositions, material weight, dimensions.
5.Cut materials record weight, making mould for casting of pr-hearting for forging.
6.Forging ratios, heat treatment ,dimension check.
7.Rough machining, UT test,heat treatment.
8.Semi-finish, quenching,
8.Fine machining, UT test, dimension inspection, mechanical properties test.
9.Customer inspection, packing, delivery arrangement.
Steel ingot making
EAF+LF+VD/VAD or ESR
Manufacturing process
EAF + LF + VD+ Forging+ Normalizing & Tempering + Rough machining + UT test + Quenching & Tempering + Precision machining
Report
Chemical composition report, Physical properties report, Heat treatment report, Dimensional inspection report, NDT report
Nondestructive test (NDT)
UT ( ultrasonic testing ), MT ( magnetic particle testing ), PT ( penetrant testing)
Quality certification : ISO 9001: 2008, IQNET

• Certification:

  ISO 9001:2008, PED Certificate,API, TUVRheinland, Bureau Veritas (BV), Lloyd Register (LR), ABS, RINA, Germanischer Lloyd (GL), Korean Register of Shipping (KR), Det Norske Veritas (DNV), Nippon Kaiji Kyokai (NK);




•  Forging & Heat Trea

Name&Description	Capacity	Quantity
3600Thydraulic press	Max. single forging in 18T	1
2000T hydraulic press	Max. single forging in 9T	2
800 hydraulic press	Max. single forging in 5T	1
6T electrical hydraulic hammer	Max.single forging in 5T	1
3T electrical hydraulic hammer	Max.single forging in3T	1
Air hammer	Max.single forging from250kg to 1000kg	7
Forging operation machine	Max.singe forging from20T-5T	7
Heat treatment Furance	Max.8000*5000*1500mm	11
CNC driling machine	Max.5000mm	2
Vertical lathe	From 1600 to 5000mm	60
Horizontal lathe	Max.5000mm	70
Band sawing machine	260-1300mm	36