A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
NPR NONMAGNETIC ANCHOR ROD STEEL MATERIAL AND PRODUCTION METHOD THEREFOR
An NPR non-magnetic steel material for rock bolt and a production method thereof are disclosed. The NPR non-magnetic steel material for rock bolt has a composition, in weight percent, consisting of: C: 0.4-0.7%, Mn: 15-20%, Cr: 1-18%, Si: 0.3-3%, Ca: 0.05-0.15%, Cu: ≤0.03%, Ni: ≤0.02%, S: ≤0.001%, P: ≤0.001%, and the rest being Fe and unavoidable impurity elements. The NPR non-magnetic steel material for rock bolt and the production method thereof effectively solve the problems of steel materials for rock bolt in the prior art such as strong magnetism, low tensile strength and low effective elongation . The NPR non-magnetic steel material for rock bolt has a fully-austenitized structure and is non-magnetic, its yield strength is adjustable in the range of 600-1000MPa, and its elongation is adjustable in the range of 20-60%.
NPR NONMAGNETIC ANCHOR ROD STEEL MATERIAL AND PRODUCTION METHOD THEREFOR
An NPR non-magnetic steel material for rock bolt and a production method thereof are disclosed. The NPR non-magnetic steel material for rock bolt has a composition, in weight percent, consisting of: C: 0.4-0.7%, Mn: 15-20%, Cr: 1-18%, Si: 0.3-3%, Ca: 0.05-0.15%, Cu: ≤0.03%, Ni: ≤0.02%, S: ≤0.001%, P: ≤0.001%, and the rest being Fe and unavoidable impurity elements. The NPR non-magnetic steel material for rock bolt and the production method thereof effectively solve the problems of steel materials for rock bolt in the prior art such as strong magnetism, low tensile strength and low effective elongation . The NPR non-magnetic steel material for rock bolt has a fully-austenitized structure and is non-magnetic, its yield strength is adjustable in the range of 600-1000MPa, and its elongation is adjustable in the range of 20-60%.
NPR NONMAGNETIC ANCHOR ROD STEEL MATERIAL AND PRODUCTION METHOD THEREFOR
UNMAGNETISCHES NPR-ANKERSTANGENSTAHLMATERIAL UND HERSTELLUNGSVERFAHREN DAFÜR
MATÉRIAU D'ACIER DE TIGE D'ANCRAGE NON MAGNÉTIQUE NPR ET SON PROCÉDÉ DE PRODUCTION
GUO HONGYAN (author) / WANG JIUPING (author) / HE MANCHAO (author) / XIA MIN (author)
2022-10-05
Patent
Electronic Resource
English
IPC:
C21C
Weiterverarbeiten von Roheisen, z.B. Feinen, Herstellen von Schweißeisen oder Stahl
,
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL
/
B22D
CASTING OF METALS
,
Gießen von Metallen
/
C21D
Veränderung der physikalischen Struktur von Eisenmetallen
,
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS
/
C22C
Legierungen
,
ALLOYS
/
E02D
FOUNDATIONS
,
Gründungen
High-strength nonmagnetic steel
| Engineering Index Backfile | 1963
High-strength nonmagnetic steel
| Engineering Index Backfile | 1963
Anchor installation method for preventing a track deviation and steel pipe anchor device therefor
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