api 571

Question 1

Amine Stress Corrosion Cracking - most often found at? and appearance

Answer 1

1. found at or adjacent to non-postweld-heat-treated carbon steel welds or in
   highly cold worked parts.
2. localized corrosion

Question 2

Amine Stress Corrosion Cracking-Affected Material?

Answer 2

Carbon steel and low-alloy steels.

Question 3

ATMOspheric Corrosion-description?

Answer 3

Corrosion that occurs from moisture associated with atmospheric conditions. Marine environments and moist, polluted industrial environments with airborne contaminants are the most severe.

Question 4

Atmospheric Corrosion-Affected Material?

Answer 4

Carbon steel, low-alloy steels, and copper alloyed aluminum

Question 5

Brittle Fracture

• Caused by —————

Answer 5

Materials operating below the ducticle-to-brittle transistion temperature

Question 6

Brittle Fracture • Metals effected

Answer 6

CS, Low alloys and 400 series SS

Question 7

Brittle Fracture appearances

Answer 7

Straight, non-branching cracks