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Author: R. W. Flax
Publisher: ASTM International
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 38
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Book Description
Author: R. W. Flax
Publisher: ASTM International
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 38
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Book Description
Author: M. D. Randall
Publisher:
ISBN:
Category : Steel
Languages : en
Pages : 26
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Book Description
The principal advantages of the HY-steels are their good combination of strength and toughness over a wide temperature range and their good weldability in heavy sections with little preheat and no postweld heat treatment. This class of steels includes Ni-Cr-Mo steels designated HY-80 and HY-100 and a Ni-Cr-Mo-V steel tentatively designated HY-130. They are low-carbon steels that achieve their strength and toughness through a quenching and tempering heat treatment. The following welding processes and their proper application to the Hy-steels are discussed: (1) shielded metal-arc welding, (2) submerged-arc welding, (3) gas metal-arc welding, (4) Narrow-Gap welding, (5) gas tungsten-arc welding, (6) plasma arc welding, and (7) electron beam welding. HY-80 and HY-100 have 80,000 psi and 100,000 psi minimum yield strengths respectively, and very similar chemical compositions. In general, these alloys are considered highly weldable, and their as-welded properties are very good when proper welding procedures are used. HY-130 is a higher alloy quenched-and-tempered steel having a minimum yield strength of 130,000 psi. Development of filler materials for joining HY-130 has been hampered by the difficulty of obtaining the combination of high toughness and high strength required in the as-welded condition. Heat-affected-zone microcracking and weld- and base-metal delayed cracking have been problems in welding HY-80 and HY-100. These can, however, be controlled by proper melting and processing of the base materials during production and by exercising proper precautions during welding. HY-130 has shown sensitivity to weld-metal contamination by carbon, sulfur, phosphorus, hydrogen, oxygen, and nitrogen.
Author: Norman Bailey
Publisher: Woodhead Publishing
ISBN: 9781855730144
Category : Technology & Engineering
Languages : en
Pages : 162
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Book Description
A comprehensive guide to avoiding hydrogen cracking which serves as an essential problem-solver for anyone involved in the welding of ferritic steels. The authors provide a lucid and thorough explanation of the theoretical background to the subject but the main emphasis throughout is firmly on practice.
Author: American Society for Testing & Materials
Publisher:
ISBN: 9780803100770
Category :
Languages : en
Pages :
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Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 26
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Book Description
Author:
Publisher:
ISBN: 9780853000853
Category : Steel
Languages : en
Pages : 61
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Book Description
Author: R.W. Flax
Publisher:
ISBN:
Category :
Languages : en
Pages : 26
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Book Description
Author: D. N. Shackleton
Publisher:
ISBN:
Category : Steel
Languages : en
Pages : 0
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Book Description
Author: NATIONAL MATERIALS ADVISORY BOARD (NAS-NAE) WASHINGTON DC.
Publisher:
ISBN:
Category :
Languages : en
Pages : 159
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Book Description
This report reviews the presently available welding technology for high-yield-strength steel (HY-steel) systems from the viewpoint of suggesting where fabrication cost savings might be achieved without sacrificing weldment integrity or performance. The review involves: economic analysis of fabrication costs; present criteria for high strength steel weldment performance, both military and industrial; present understanding of the effects of hydrogen in high strength steel weldments; factors affecting weld metal mechanical properties; and factors affecting weldment mechanical performance.
Author: Herbert W. Mishler
Publisher:
ISBN:
Category : Steel
Languages : en
Pages : 106
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Book Description
