Hello. Sign In
Standards Store

WRC BUL 266

1981 Edition, April 1, 1981

Complete Document

WELDABILITY AND FRACTURE TOUGHNESS OF 5% NI STEEL – PART 1: WELD SIMULATION TESTING ; WELDABILITY AND FRACTURE TOUGHNESS OF 5% NI STEEL – PART 2: WIDE PLATE TESTING



Detail Summary

Active, Most Current

EN
Additional Comments:
SEND CUSTOMER DIRECT
Format
Details
Price (USD)
Print
Backordered
Call for Quote
Add to Cart

Product Details:

  • Revision: 1981 Edition, April 1, 1981
  • Published Date: April 1981
  • Status: Active, Most Current
  • Document Language: English
  • Published By: Welding Research Council (WRC)
  • Page Count: 19
  • ANSI Approved: No
  • DoD Adopted: No

Description / Abstract:

This paper describes an investigation on the weldability of a double normalized and tempered 5% Ni steel, using weld simulation to estimate the heat-affected zone (HAZ) ductility at cryogenic temperatures. A series of large scale tensile tests have also been carried out on 5% Ni butt welds, the results of which are reported in Part 2 of this WRC Bulletin. Charpy-V specimens were subjected to various weld simulation cycles and heat treatments and subsequently broken at a range of cryogenic temperatures. Very high peak temperatures result in a sharp drop in impact strength, especially if high heat input welding is simulated. Very low base metal and HAZ ductilities can result from artificial aging, such as a plastic deformation followed by heating in the 200-400C temperature range; this suggests that care must be taken when cold deformation is applied or distortions are corrected in structures made of 5% Ni steel. The ductility can be restored by heat treating the specimens for instance for 1 hr in a very narrow temperature range at around 650C.