Document: NRC Regulatory Guide
Document ID: 44b58049-ac63-457b-a075-ef162b34cb70
Document Type: regulatory_guide
Title: Materials code case Acceptability - - ASME Section III, Division 1 (Rev. 31)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML0037/ML003740365.pdf
Revision Date: 2023-06
Chapter: 
Section ID: RG-1.85
CFR Part: 
CFR Title: 

Content:
Material for Core Support 02-15-94 Structures, Section III, Divi sion 1 Code Case N-60-4 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: Welding of age-hardenable alloy SA-453 Grade 660 and SA-637 Grade 688 should be performed when the material is in the solution treated condition. The maximum yield strength of strain-hardened austenitic stainless steel should not ex ceed 90,000 psi in view of the susceptibility of this ma terial to environmental cracking. 1626 03-02-74 Normalized and Tempered 01-08-79 1-1/4 Cr Low Alloy Steel Forg ings, Section 1, Section III, and Section VIII, Division 1 and 2 1634 07-01-74 Use of SB-359 for Section III, 08-12-74 Class 3 Construction 1634-1 08-12-74 Use of SB-359 for Section III, 08-13-76 Class 3 Construction 1644 08-12-74 Additional Materials for Com 04-28-75 ponent Supports Section III, Subsection NF, Class 1, 2, 3, and MC Construction Code Case 1644 was acceptable subject to the fol lowing condition in addition to those conditions speci fied in the Code Case: The maximum measured ulti mate tensile strength of the component support material should not exceed 170 Ksi. 1644-1 04-28-75 Additional Materials for Com 06-30-75 ponent Support-Section III, Subsection NF, Class 1, 2, 3, and MC Construction Code Case 1644-1 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength of the component support materi al should not exceed 170 Ksi. 1644-2 06-30-75 Additional Materials for Com 11-03-75 ponent Supports-Section III, Subsection NF, Class 1, 2, 3 and MC Construction Code Case 1644-2 was acceptable subject to the following condition in addition to those conditions spe cified in the Code Case: The maximum measured ulti mate tensile strength of the component support materi al should not exceed 170 Ksi. 1644-3 11-03-75 Additional Materials for Com 03-01-76 ponent