Joining dissimilar steels, stainless steels to mild steels, difficult-to-weld steels
Coating Type
Rutile
E 312-16 Trade Information
Minimum Order Quantity
100 Pieces
Delivery Time
3 Days
Packaging Details
BOX
Main Domestic Market
All India
About E 312-16
The E312-16 is a high-strength stainless steel welding electrode (AWS E312-16) known for its exceptional crack resistance, used primarily for joining dissimilar or difficult-to-weld steels (like high carbon, alloy, or armor steels) and for wear-resistant surfacing, featuring a duplex austenite-ferrite weld deposit with excellent mechanical properties for tough, shock-resistant applications.
Key Features
High Strength: Produces weld metal with very high tensile and yield strength, making it great for demanding applications.
Dissimilar Metal Joining: Excellent for bridging gaps between stainless steels, carbon steels, and other alloy steels where compatibility is difficult.
Crack Resistance: The duplex (austenite-ferrite) structure provides superior resistance to cracking and fissuring.
Versatile: Can be used for repair, overlay, and joining of heavy machinery parts, spring steels, and armor plating.
All-Position: Suitable for welding in all positions (flat, horizontal, vertical, overhead).
Rutile Type: Typically has a medium-heavy rutile coating.
Common Applications
Welding of high-carbon, tool, die, and spring steels.
Repair and surfacing of worn parts on earth-moving equipment.
Joining of 13% manganese steel and other hard-to-weld steels.
Applications requiring high mechanical strength and impact resistance, like gear teeth, forged shafts, and heavy machinery components.
Classification Breakdown (AWS)
E: Electrode.
312: Indicates a specific stainless steel composition, often around 30% Chromium and 10% Nickel (30/10 type), providing excellent strength and crack resistance.
-16: Denotes a low-hydrogen, iron powder, rutile-type coating, suitable for AC or DC+ current.
Versatile Welding Solution
E 312-16 electrodes are engineered to handle a range of difficult welding tasks, especially for joining dissimilar metals. Their unique composition and rutile coating provide excellent performance whether you are welding stainless steel to mild steel or dealing with various challenging alloys.
Exceptional Mechanical Properties
With a tensile strength of roughly 85,000 psi and an average elongation of 25%, E 312-16 offers high durability and flexibility for critical welding scenarios. These properties make it suitable for projects requiring both strength and adaptability, ensuring lasting welds in demanding environments.
Superior Corrosion and Heat Resistance
Designed for use in corrosive environments, E 312-16 demonstrates excellent resistance against both oxidizing and reducing conditions. Its performance remains stable up to a working temperature of 300C, making it an optimal choice for industrial and structural applications exposed to harsh elements.
User-Friendly Application
These electrodes support all-position welding, allowing for flexible use whether working overhead, vertically, or in flat positions. Open circuit voltage of 60V and tailored current ranges provide steady arc starts and smooth operation, while the easy-to-identify grey color aids in quick selection.
FAQ's of E 312-16:
Q: How should E 312-16 electrodes be stored to maintain their quality?
A: E 312-16 electrodes should be stored in a dry, adequately ventilated area to prevent moisture absorption, which can impact welding performance and lead to porosity in the weld.
Q: What are the primary applications of E 312-16 electrodes?
A: These electrodes are mainly used for joining dissimilar steels, including stainless steels to mild steels, and welding on difficult-to-weld metals in environments requiring robust corrosion resistance.
Q: When should E 312-16 be selected over other welding electrodes?
A: E 312-16 is the preferred choice when working with dissimilar metals or when exceptional resistance to oxidation, corrosion, or chemical exposure is required in the welded joint.
Q: Where can E 312-16 be used in terms of welding positions?
A: Thanks to its versatile formulation, E 312-16 can be utilized in all welding positions, including flat, vertical, overhead, and horizontal, making it suitable for a variety of structural and fabrication projects.
Q: What is the recommended welding process and current settings for E 312-16?
A: For best results, use a straight opening pattern, an open circuit voltage of 60V, and set the current according to electrode size: 70-110A for 2.5mm, 90-140A for 3.2mm, and 130-180A for 4.0mm electrodes.
Q: How does E 312-16 benefit users working in corrosive environments?
A: E 312-16 offers excellent corrosion resistance in both oxidizing and reducing environments, ensuring welds retain integrity and performance even under harsh industrial conditions.
Q: What packaging options and electrode sizes are available for E 312-16?
A: E 312-16 electrodes are supplied in 2kg and 5kg boxes, with diameters of 2.5mm, 3.15mm, and 4.0mm, each with a length of 350mm for versatility across varied welding needs.
Tell us about your requirement
Price:
Quantity
Select Unit
50
100
200
250
500
1000+
Additional detail
Mobile number
Email
Name
Comapny Name
Phone Number
Email Id
City / State
Confirm Your Requirement
Verification Code
Did not receive yet?
Resend OTP
You’re Done!
We have received your requirements and will reply shortly with the best price.