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Zirconium & Zirconium Alloy Bar and Wire

The zirconium & zirconium alloy bar and wire are manufactured to ASTM B550 covering three grades: Grade R60702: unalloyed zirconium, Grade R60704: zirconium-tin, Grade R60705: zirconium-niobium. The material can be either hot finished or cold finished, often in annealed condition. The Zr & Zr alloy bar or wire may be furnished in round, square, octagon, hexagon or flat shapes. Generally, the delivery conditions include non-descaled, descaled, descaled & pickled, turned, ground or polished.

ASTM B550 R60704 zirconium-tin alloy bars

ASTM B550 R60704 zirconium-tin alloy bars, 30 mm x 1.6 m.

Definition of Zirconium & Zirconium Alloy Bar and Wire

  • Bar: a hot rolled, forged, or cold worked semi-finished solid section product whose cross sectional area is equal to or less than 16 inch2 [10323 mm2]; rectangular bar must be less than or equal to 10 inch [254 mm] in width and greater than 0.1875 inch [4.8 mm] in thickness.
  • Zirconium Gr. R60702 wires, ASTM B550 unalloyed zirconium.

    Zirconium Gr. R60702 wires, ASTM B550 unalloyed zirconium.

    Wire: rounds, flats, or special shapes less than or equal to 0.1875 inch [4.8 mm] in thickness or major dimension.

Chemical Composition Requirements

ElementASTM B550 Zr & Zr Alloy Grades
R60702R60704R60705
Zirconium(+Hf)≥99.2≥97.5≥95.5
Hafnium≤4.5≤4.5≤4.5
Iron+Chromium≤0.20.2~0.4≤0.2
Tin-1.0~2.0-
Hydrogen≤0.005≤0.005≤0.005
Nitrogen≤0.025≤0.025≤0.025
Carbon≤0.05≤0.05≤0.05
Niobium--2.0~3.0
Oxygen≤0.16≤0.18≤0.18
*All values are in weight percentage.

Mechanical Properties of Zr & Zr Alloy Bar and Wire

ASTM B550Tensile Strength, min.Yield Strength, min.Elongation
GradeksiMPaksiMPamin. %
R60702553803020516
R60704604153524014
R60705805505538016
*The tensile test shall be conducted at room temperature. Specimens shall be annealed.

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Zirconium & Zirconium Alloy

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    Hebei Metals Industrial Limited
    (Shijiazhuang Metalsin Pipeline Tech Co., Ltd)
    No. 176, Zhonghua South Street, Shijiazhuang, China.
    Tel: +86-311-89642206
    Fax:+86-311-67906676
    Web: www.metalspiping.com
    Email: sales@metalspiping.com