702
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We propose this metal :
Trading : round bars in all diameters
Forge : rings, blocks, bars, rolls etc … (rough or pre-machined pieces).
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| Carlier designation | ZR 702 |
| UNS designation | R60702 |
| AFNOR designation | ZR702 |
| Applicable standards | | ASTM B493 | Forged pieces | | ASTM B550 | Bars |
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Chemical composition
| en % | Zr+Hf | Hf | Fe+Cr | H | N | C | O | | min | 99,200 | - | - | - | - | - | - | | max | - | 4,500 | 0,200 | 0,005 | 0,025 | 0,050 | 0,160 |
Density : 6.5
Guarantee mechanical results in MPa
| Standard | Rm | Rp
0.2% | A % | Z | HB | Hrc | Comments | | ASTM B493 - 83 | 379 | 207 | 16 | - | - | - | Forged metal, all sizes | | ASTM B550 - 97 | 380 | 205 | 16 | - | - | - | Bars, all diameters |
Forging conditions
Like titanium, zirconium and its alloys have two allotropic varieties. Consequently forging temperatures are in accordance with results to be obtained. In any case, please contact us.
Properties / Main use conditions
CAUTION : ZIRCONIUM AND ITS ALLOYS ARE PYROPHORIC, SO IT IS CONVENIENT NOT TO STORE FINE WASTES (POWDERS, FILINGS, COUNTERSINKS OR CHIPS OF TURNING), IN CASE OF FIRE, ABSOLUTELY AVOID WATER AND USE EXCLUSIVELY WELL DRY SAND.
The resistance to corrosion of zirconium and its alloys is due to its very high oxidability. The oxide seam guards it from chemical attacks. Excellent resistance to hydrochloric and nitric acids and generally to organic acids.
Main applications
Chemical industry, production of acids, flanges, columns, reactors, pressure vessels, tubular and heat exchangers.
Heat treatment
Please, contact us
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