Creep-rupture properties of 2/sup 1///sub 4/ Cr--1 Mo steel weldments with varying carbon content

Journal Article · Wed Dec 01 04:00:00 EST 1976 · Weld. J. (Miami); (United States)

OSTI ID:5400849

Klueh, R J; Canonico, D A

The creep-rupture properties were determined on weld metal, transverse weldments, and normalized-and-tempered base metal for three heats of 2/sup 1///sub 4/ Cr-1 Mo steel with 0.003, 0.035, and 0.11 percent C at 454, 510, and 565 C (850, 950 and 1050 F). For a given temperature and carbon content, the creep-rupture properties of the weld metal were always greater than those of the transverse weldments and base metals, which had similar strengths for a given carbon content. The creep-rupture properties of weld metal, transverse weldments, and base metal showed an effect of carbon that depended on temperature. At 565 C (1049 F), the 0.11 percent C steel had the highest strength, while the strength of the other two steels were similar. At 454 and 510 C (850 and 950 F), the strength of the 0.035 percent C steel approached that of the 0.11 percent C steel at long rupture times, and both were considerably stronger than the low-carbon steel. All but one of the transverse weldment specimens failed in base metal unaffected by the welding treatment. This test, a 0.11 percent steel specimen with the longest rupture life at 565 C (1050 F), failed in the heat-affected zone.

• Research Organization: Oak Ridge National Lab., TN
• OSTI ID: 5400849
• Journal Information: Weld. J. (Miami); (United States), Journal Name: Weld. J. (Miami); (United States) Vol. Suppl.; ISSN WEJUA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360101* -- Metals & Alloys-- Preparation & Fabrication
360103 -- Metals & Alloys-- Mechanical Properties
ALLOYS
CHROMIUM ALLOYS
CHROMIUM STEELS
CHROMIUM-MOLYBDENUM STEELS
CREEP
FAILURES
HIGH TEMPERATURE
IRON ALLOYS
IRON BASE ALLOYS
JOINTS
MECHANICAL PROPERTIES
RUPTURES
STEELS
WELDED JOINTS