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1. 화학조성
GRADE UNS NO CHEMICAL COMPOSITION (%)
Zr + Hf
(Min.)		 Hafnium
(Max.)		 Fe + Cr
(Max.)		 Tin Hydrogen
(Max.)		 Nitrogen
(Max.)		 Carbon
(Max.)		 Niobium Oxygen
(Max.)
Zr 702 R60702 99.2 4.5 0.2 - 0.005 0.025 0.05 - 0.16
Zr 704 R60704 97.5 4.5 0.2 ∼ 0.4 1.0 ∼ 2.0 0.005 0.025 0.05 - 0.18
Zr 705 R60705 95.5 4.5 0.2 - 0.005 0.025 0.05 2.0 ∼ 3.0 0.18
Zr 706 R60706 95.5 4.5 0.2 - 0.005 0.025 0.05 2.0 ∼ 3.0 0.16
2. 기계적 성질
GRADE UNS NO MECHANICAL PROPERTIES (실온)
Tensile Strength
Ksi (Mpa)		 Yield Strength
Ksi (Mpa)		 Elongation
(0.2% Offset)		 Bend Test Radius
Zr 702 R60702 55 (379) Min. 30 (207) Min. 16 Min. Percent 5T
Zr 704 R60704 60 (413) Min 35 (241) Min. 14 Min. Percent 5T
Zr 705 R60705 80 (552) Min. 55 (379) Min. 16 Min. Percent 3T
Zr 706 R60706 74 (510) Min 50 (345) Min. 20 Min. Percent 2.5T
ASTM / AWS / ASME Specification for zirconium
ASTM SPECIFICATION
ASTM B 493 Zirconium and Zirconium Alloy Forgings.
ASME SB-493 Zirconium and Zirconium Alloy Forgings.
ASTM B 494 Primary Zirconium
ASTM B 495 Zirconium and Zirconium Alloy Ingots.
ASTM B523 Seamless and Welded Zirconium and Zirconium Alloy Tubes for Condensors and Heat Exchangers.
ASME SB-523 Seamless and Welded Zirconium and Zirconium Alloy Tubes for Condensors and Heat Exchangers.
ASTM B 550 Zirconium and Zirconium Alloy Bar and Wire.
ASME SB-550 Zirconium and Zirconium Alloy Bar and Wire.
ASTM B 551 Zirconium and Zirconium Alloy Strip, Sheet and Plate.
ASME SB-551 Zirconium and Zirconium Alloy Strip, Sheet and Plate.
ASTM B 614 Recommended Practice for Descaling and Cleaning Zirconium.
ASTM B 653 Seamless and Welded Zirconium Alloy Weld Fittings.
ASTM B 658 Seamless and Welded Zirconium and Zirconium Alloy Pipe.
ASME SB-
658		 Seamless and Welded Zirconium and Zirconium Alloy Pipe.