Ark Welding Covered Electrode

Ref Price:

Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 100 Boxes carton

Supply Capability:: 10000 Boxes per Month carton/month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

You Might Also Like

Submerged Arc Welding Flux

MMA arc-120 Welding Machine

Welding Rotator

AWS E7018 Welding Electrode,Welding Rod

UTP CAT5E Lan Cable

ER70S-6 Copper Coated Welding Wire

30 Years Welding Wire Factory Mig Mag Welding Wire Low Price

Copper Coated Welding Wire AWS 5.18 ER70S-6 Factory Lower Price

SF-0 SF SF-2SF-3

Arc welding covered electrode

SF-0 low hydrogen type tip color green

SF low hydrogen type tip color violet

SF-2 lime-titania type tip color vermilion

SF-3 low hydrogen type tip color orange

APPLICATIONS : SF series is used for direct armour (hard facing) of cast iron metal molds.

CHARACTERISTICS

You can overlay directly to the cast iron with these electrodes, and can obtain the predetermined hardness at the 2-3rd layer.
The first layer changes to austenite and the 2-3rd layer changes to martensite.
You do not have to underlay, and can armour with one kind of electrode.
SF-0 , SF are good for armour to the cutting-edge because of their high hardness.
SF-2, SF-3 are good for the drawing die and for bead-laying.

NOTE ON WELDING OPERATION

It is effective for preventing the cracks to weld with preheating of about 100°C and with interpass temperature. Over 150°C preheating and interpass temperature should be avoided.
Adopt the arc starting plate method or the backstep welding method, because the start part tends to generate blowholes.
Weld with the current as low as possible. The arc length should be short, the weaving should avoid, and the bead length should limit to about 100 mm, and be sure to perform peening.
Re-dry the electrode for 30-60 minutes at 200-300°C before using.

TYPICAL HARDNESS OF WELDED METAL (as welded)

Product No.	1st layer(HV)	2nd layer(HV)	3rd layer(HV)
SF-0	440-540	550-650	600-700
SF	250-350	460-560	460-560
SF-2	250-350	460-540	440-500
SF-3	250-350	360-440	360-440

OPTIMUM WELDING CURRENT (AC or DC +)

Diameter(mm)	2.6	3.2	4
Length(mm)	300	350	400
Current(A)	70-90	90-110	110-130

Q: What welding electrodes are used to weld 304 stainless steel pressure vessels?: 304 is 18-8 austenitic stainless steel, need to use 18-8 electrode, A102 or A107 can

Q: When welding, for example, 3.2 of the electrode should choose how much current: Empirical formula: welding electrode current = 30~55 times of electrode diameterSelect the base material thickness

Q: How many kinds of welding rod do you have?: The electrode use is divided into 9 types: structural steel electrode (including carbon steel and alloy steel), molybdenum and chromium molybdenum steel electrode, stainless steel electrode, welding electrodes, low temperature steel electrodes, cast iron electrode, nickel and nickel alloy electrode, copper and copper alloy rods, aluminum and Aluminum Alloy electrode.

Q: Electrode: 506--J48-56 junction, Tianjin Bridge Welding Materials Group Co. Ltd. production. Is it possible to use an AC welder?: AC and DC can be, a large current bar on the line

Q: What does "E7016" mean? What should I pay attention to when welding? Can I weld the pressure vessel (pressure 1Mpa)?: The electrode E7016 is American Welding Society AWS grades, the tensile strength of 470MPa, yield strength is 390MPa, the impact toughness of 100J (-50 C) section, the elongation is 30%, and the yield strength and tensile strength of the national standard J507 (E5015), so this electrode can replace J507 (E5015) electrode, is resistant to ultra low moisture absorption hydrogen electrode, excellent low temperature impact properties, using direct reverse, used for all position welding. Look at the electrode welding electrode has not expired, no quality problem, and then the electrode drying (350 DEG C for 1 hours), more than 3mm thick plate to groove, welding parts to rust, water, oil, dirt, can pressure vessel welding Q345R, 16MnDR strength is plate (as for the pressure, according to the the design requirements of 1MPa or greater pressure can be, but the thickness is different).

Q: How can I distinguish the basic electrode or the acid welding electrode from the welding rod number?What are the basic electrode models?What are the types of acid electrodes?: General electrode brand will see E308-15 or -16 or -17,Suffix 15 means that the electrode is alkaline, and the reverse polarity is welded;Suffix 16 means that the electrode can be an alkaline coating, or a titanium or a calcium titanium based coating for both hand and dc;The suffix 17 is a variant of the drug skin type 16, which means that the electrode is made of titanic acid type and can be used for both hand and DC purposes.The ingredients and operation characteristics of the rings 25 and 26 are similar to those of the electrode type 15 and 16. The specifications of the type 15 and 16 of the electrode type are also suitable for the type 25 and 26 of the coating types. According to the nature of the electrode coating, the electrode can be divided into two categories: acid electrode and basic electrode.Drug skin contains a large amount of acidic oxide (TiO2, SiO2, etc.) electrode, known as the "acid electrode.".The skin contains many basic oxides (CaO, Na2O, etc.) called alkaline electrode.Acid electrode can AC-DC, the welding process performance is better, but the weld mechanical properties, especially the impact toughness is poor, suitable for welding low alloy steel for low carbon steel and low strength, is the most widely used electrode.The basic electrode has strong desulfurization and dephosphorization ability, and the coating has the function of hydrogen removal. The hydrogen content of welding joint is very low, so it is also called low hydrogen type welding rod. Basic welding seam has good crack resistance and mechanical properties, but poor technology performance, general DC power supply welding, mainly used for important structures (such as boiler, pressure vessel and alloy steel welding etc.).

Q: J422 electrodes are marked with "THJ422". What does TH represent?: J422 is the brand of welding rod GB. As for the TH is the enterprise stipulated grades, the first letter T should be on behalf of the welding electrode (strip of the first letter); second letters H, should be related to the electrode trademark or manufacturer's name.

Q: How to use hot 317 welding rod?: R317 is a low alloy steel welding rod with low sodium hydrogen type. It can be welded in all positions by DC reverse welding, and the welding process is good. The weldment should be preheated to 250~300 DEG C before welding and should be treated at 700~740 DEG C after welding.

Q: Stainless steel 2025 is how material, with what electrode?: Carbon steel, stainless steel welding rod

Q: What type of welding rod is applied to Q345 steel plate?: E50 series (E5001~E5048) welding rod can be. To adapt to the requirements and welding of steel used in SMAW electrode, using the intensity principle of E50 series E55 series above right above strength, high cost, comprehensive strength and economic aspects, should choose E50 series of electrode.

We design based on shape and the number of commodities. You are invited to sample just how good these are by making the first step and contacting us soon. We have obtained a large market share with our high quality and good faith to service for our customer.

1. Manufacturer Overview

Location
Year Established	1947
Annual Output Value
Main Markets
Company Certifications

2. Manufacturer Certificates

a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability

a) Trade Capacity
Nearest Port
Export Percentage
No.of Employees in Trade Department
Language Spoken:
b) Factory Information
Factory Size:
No. of Production Lines
Contract Manufacturing
Product Price Range