Section 2

Question 1

What is the advantage of low carbon nickel?

Answer 1

More ductile

Low carbon nickel is known for its improved ductility, making it suitable for various applications.

Question 2

What is the joint preparation for clad steels of 16 mm (5/8”) or larger in thickness?

Answer 2

“J” or “U”

Joint preparations are crucial for ensuring proper fusion and strength in welded joints.

Question 3

What thickness of material is most often welded with the clad alloy filler metal only?

Answer 3

1/2

This thickness typically allows for effective welding without additional filler materials.

Question 4

What would most likely produce slag inclusions in a 2G weld?

Answer 4

Low current setting with a short arc length

Proper settings are essential to minimize defects in welding.

Question 5

What electrode inclination is recommended for the first pass of a 45 overhead weld on 10 mm (3/8”) material using a 3.2 mm (1/8”) E4310 electrode?

Answer 5

0 deg to 10 deg backhand

Correct electrode inclination helps in achieving better weld quality.

Question 6

What is the required spacing between the plates for the 2GF position?

Answer 6

7.9 nm (5/16”)

Adequate spacing is important for achieving proper penetration and fusion in the weld.

Question 7

One effective method used to overcome carbide precipitation is to:

Answer 7

Cool the weld quickly

Quick cooling can help maintain the desired microstructure in stainless steels.