Commercially pure zirconium is a zirconium alloy. Cited properties are appropriate for the annealed condition. The graph bars on the material properties cards below compare commercially pure zirconium to: zirconium alloys (top), all alloys in the same category (middle), and the entire database (bottom).

ASME SB-493 is the standard specification for zirconium and zirconium alloy forgings, which shall be furnished in annealed condition.

ZR702 (Zirconium Grade 702)

• Composition:
  • Zirconium content ≥ 99.2%
  • Low levels of hafnium (≤ 4.5%) as it naturally occurs with zirconium
  • Trace impurities such as oxygen, iron, and niobium

R60702 Flange standard

Flanges made of ZR702 are typically manufactured to ASME standards (e.g., ASME B16.5 or B16.47 for pressure-temperature ratings and dimensions). These flanges are:

• Resistant to harsh chemicals such as nitric acid, sulfuric acid, and chlorides.
• Often used in systems requiring low reactivity and long service life.

R60702 Flange Types

• Weld Neck Flange
• Slip-On Flange
• Blind Flange
• Socket Weld Flange
• Threaded Flange

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