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Manufacturing and Performance Evaluation on Specimen pipes with Large Size Diameter and Thin Thickness for KSLV-II  

Lee, Hanju (발사체추진기관팀)
Lee, Jung Ho (발사체추진기관팀)
Oh, Seung Hyub (발사체추진기관팀)
Publication Information
Aerospace Engineering and Technology / v.12, no.1, 2013 , pp. 81-86 More about this Journal
Abstract
This article deals with the manufacturing and performance evaluation on the specimen pipes which have large size diameter and thin thickness. This specimen is for LOX main pipe of KSLV-II propulsion feeding system. The material of specimen is alloy 21-6-9. Alloy 21-6-9 has higher strength and better weldability rather than STS-300 class pipes. We found that the specimen using alloy 21-6-9 satisfied the requirement by pressurization tests.
Keywords
KSLV-II; LOX main pipe; Strength; Weldability; Alloy 21-6-9;
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  • Reference
1 NASA SP-8123, Liquid rocket lines, bellows, flexible hoses, and filters.
2 AMS 5595 G
3 AMS 5513 Rev.J