Specifications

Inconel 690 welding wire
1.Resistance to both reducing and oxidizing acids
2.ISO9001
3.Fine after-sale service

 

 

Inconel 690 welding wire

 

Inconel 690 welding wire    has outstanding resistance to oxidizing chemicals and to high-temperature oxidizing gases. And it has resistance to stress corrosion cracking in chloride-containing environments as well as to sodium hydroxide solutions. Alloy 690 is used for applications such as coal-gasification units, burners and ducts for processing sulfuric acid, furnaces for petrochemical processing, incinerators and so on.

 

 

Specification

UNS	W.Nr
NO6690	2.4642

 

 

Chemical composition

Grade	%	Ni	Cr	Fe	C	Mn	Si	Cu	S
690	Min	58.0	27.0	7.0
	Max		31.0	11.0	0.05	0.5	0.5	0.5	0.015

 

 

 

Mechanical properties:(Minimum value at 20°C)

Tensile Strength σb/MPa	Yield Strength σp0.2/MPa	Elongation σ5 /%
580	260	30

 

 

 

Characteristics

1.Highly resistant to various reducing chemicals

2.Excellent resistance to caustic alkalies

3.High electrical conductivity

4.Excellent corrosion resistance to distilled and natural waters

5.Resistance to neutral and alkaline salt solutions

6.Excellent resistance to dry fluorine

7.Widely used to handle caustic soda

8.Good thermal, electrical and magnetostrictive properties

9.Offers some resistance to hydrochloric and sulfuric acids at modest temperatures and concentrations

 

 

 

 

Applications Areas

 

1. Sulfuric acid factory usage for heating pipe, container, basket,chain and so on.

 

2. Cooling heat exchanger, marine product pipeline system and gas pipeline of acidic environment.

 

3. Heat exchanger, steam machine, washing, impregnation pipe, etc. for phosphoric acid produce 
4. Food processing equipment.

 

5. Salt production .

 

6. Chemical process

 

7.Oil refining in the air heat exchanger.

 

8.Caustic handling equipment

 

9.Reactors and vessels in which fluorine is generated and reacted with hydrocarbons

 

10. Application of high pressure oxygen flam-retardant alloy

 

 

 

 

Our company has been in this line over 10 years, we can supply good products and good services.

 

 

 

 

 

 

 

Win-Win is our company tenet!

 

 

 

 

 

 

 

Don't hesitate to contact me, we will give you a satisfactory reply!

 

 

 

 

Factory

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Testing  Equipment

 

 

 

 

 

 

 

 

 

 

Certification

 

 

 

 

 

 

 Packing