Welding Flux JN-HJ431 For boiler

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 1 Metric Ton m.t.

Supply Capability:: 200 Metric Tons per Month m.t./month

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Welding Flux JN-HJ431 For boiler

1.Product:JN-HJ431

2.Red brown to light yellow

3.Glassy granulated flux

4.25Kgs/plastic woven bag

5.Delivery time:30 days

Fit

GB/T5293-1999

F4A3-H08A

F5A2-H08MnA

Equivalent to

AWS-A5.17

F6A2-EL12

F7A3-EM12K

1.JN-HJ431 is a kind of high manganese and silicon, low fluorine fused flux

2.Color:red brown to light yellow

3.Grain size:of 8-40(2.5-0.45mm) and 14-40(1.5-0.45mm) meshes

4.Current:alternating or direct current(welding wires must be connected with the positive electrode when direct current is used)

Usage:

1.for low-carbon and low-alloy steels like 16Mn and 15MnV, as well as ships, boilers and high-pressure vessels[applied to welding wires such as H08A(AWS EL8), H08MnA(AWS EM12) and H10MnSi(AWS EM13K)]

2.for electro-slag and copper welding.

Cautions:

1.The oil stain, moisture, iron rust and other impurities must be removed from the surface;

2.Flux must be baked under 250~300°C for 2 hours before welding.

Chemical Composition:(%)

Mechanical Performance:Applied to H08A (AWS EL8)

Q: Must soldering flux be used in soldering test?: If you use tin wire, tin wire solder test, of course, do not add, unless the pad is particularly strong oxidation, or iron and other unconventional pads. Of course, there are about 2% solid flux in the tin wire except the special onesSweet words unless you board itself precoated flux or no flux is not on the tin.SMT surface mount solder furnace, without flux itself is a mixture of spherical powder with solder paste fluxWe can see it in SINOSMT's informationThe main functions of soldering flux are:1. Remove the oxide film on the welded metal surface;2, on the surface of the welding to form a liquid protective film, isolated from high temperature air around, to prevent the metal surface reoxidation3, reduce the surface tension of solder and increase its diffusion ability;4, welding instant, can let melt solder replace, finish welding smoothly.

Q: What welding wire and flux are used for submerged arc welding of austenitic stainless steel?: Stainless steel is mainly used for corrosion resistance, but also used as heat-resistant steel and low temperature steel. Therefore, in the welding of stainless steel, the performance of the electrode must first be consistent with the use of stainless steel, and secondly, stainless steel welding rod must also be selected according to the base material and working conditions (including working temperature and contact medium, etc.). In combination with the problems easily occurred in the process of stainless steel welding and the prevention measures, the selection principle of welding rod is generally as follows:1, in general, the selection of welding rod can refer to the parent material, and choose the same or similar electrode with the parent material. For example, A102 corresponds to 0Cr19Ni9, A137 corresponds to 1Cr18Ni9Ti, and so on.2, austenitic stainless steel weld metal should ensure mechanical properties. This can be verified by welding procedure qualification.3, because the carbon content has a great influence on the corrosion resistance of stainless steel, therefore, the stainless steel electrode is not more than the parent metal. For example, A022 electrode must be used for 316L.4, for the high temperature work of heat-resistant stainless steel (austenitic heat-resistant steel), the selected electrode should be able to meet the weld metal thermal cracking resistance and high temperature performance of welded joints.

Q: Previously soldered 80 pin SMT components without using soldering flux. Now to 200 feet above the welding, really can not grasp, in the online drag welding video presentation, see a lot of use is a kind of transparent emulsion flux, do not know what type of flux, hope heroes ariadne.Or recommend a good soldering flux.Also used pine perfume, not very good, it may be the loose perfume I have problems, the loose perfume is yellowish liquid, touch a cool feeling, a bit sticky after welding: You say transparent latex flux, colorless transparent type, not welded, is not the oxidation of the solder joints?Xin Tai solder as better rosin flux for welding

Q: How can I use the submerged arc welding flux?: There are many holes and the current is big. The flux can be screened and can be used again. I am the leader of the automatic welding group of the boiler factory. I believe it

Q: Why does the flux leak?: You mean after welding? Is usually caused by excessive flux residue on the circuit board.

Q: What flux should be used in the national standard for nickel plated products?: Using stainless steel flux is OK

Q: Is carbon dioxide gas shielded welding wire a flux cored wire?What is the explanation of solid cored wire?.: Now carbon dioxide gas shielded welding wire is divided into solid welding wire and flux cored wire.Solid wire: is H08 a bar or wire drawing to the specified size or not made of copper coated copper wire.Flux cored wire: the alloy powder is coated with a steel band to draw the wire to the specified sizeThey all use carbon dioxide as a protective gasIn general, gas shielded welding requires no soldering flux. Submerged arc welding is used only.

Q: What is a soldering flux? What does the solvent include?: There are borax, hydrochloric acid and so on

Q: The flux is sprayed on the PCB board. There is a lot of yellow on the solder joint. Which is the reason for the flux?: LZ, I suggest you let the supplier re debug, see it, make some improvements in the preparation

Q: Is oxalic acid also called soldering flux?: No, the flux is borax

Our company has powerful technical force and qualified special group for developing products as per customer. The product have passed the approval of China Certification System, ISO9001:2008 Quality System, reached international leading level and have been sold to many countries and regions like South America, Southeast Asia, Middle East etc. Guaranteed with the reliable quality and after-sale service, you will be delighted to find that imported directly from us is so easy and simple as you buy from your local suppliers but with very competitive prices and more choice. Let's march forward hand in hand, and create a bright future together. .

1. Manufacturer Overview

Location	Shandong,China
Year Established	2003
Annual Output Value	Above US$100 Million
Main Markets
Company Certifications	ISO 9001:2008

2. Manufacturer Certificates

a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability

a) Trade Capacity
Nearest Port	QINGDAO PORT
Export Percentage	81% - 90%
No.of Employees in Trade Department	3-5 People
Language Spoken:	English, Chinese
b) Factory Information
Factory Size:	50,000-100,000 square meters
No. of Production Lines	3
Contract Manufacturing	OEM Service Offered Design Service Offered
Product Price Range	Average