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zr702 zirconium pipe
zr702 zirconium pipe

14.Grade: R60702,R60704,R60705 2.Density: 6.51g/cm3 3.Standard: ASTM B523, ASTM B658 4.Size:1-4.5*6-80*500-2000mm

1.Standard mechanical specification of zirconium and zirconium alloy for non-nuclear

Standard (product)

Mark 

Status 

Rm(≥)/MPa

Rp0.2(≥)/MPa

A50mm(≥)/%

Note 

ASTMB 658-1992 Seamless and welded pipe(tube)

R60702

R60704

R60705

Anneal

Anneal

Anneal

379

413

552

207

241

379

16

14

16

 

ASTM B523-1992 Seamless and welded converter

R60702

R60704

R60705

Anneal

Anneal

Anneal

379

413

552

207

241

379

16

14

16

 

2.The zirconium physical process performance 

Item 

Condition 

Unit 

Performance valve 

Periodic table of elements RACE

crystal structure

Phase transition temperature

Melting point

boiling point

coefficient of line-expansion

Relative density

Thermal conductivity

Specific heat capacity

Poisson's ratio

Elastic modulus

Medium temperature forming temperature

High temperature forming temperature

Stress relief annealing

Fully annealed

20°C 

20°C 

20°C 

20°C 

20°C 

20°C 

°C 

°C 

°C 

GPa

°C 

°C 

°C 

°C 

NB

Close-packed hexagonal lattice(<862°C ),Body-centered cubic lattice(>862°C )

862

1845

3577

5.8

6.48(R60702,6.54(R60705)

14.65~16.75

0.28

0.35

99.3(R60702),97.9(R60705)

315~400

950~980

300~620

680~790

 mechanical property

UNS grade

R60702

R60704

R60705

Tensile resistance strength,min kip/inch2(Mpa)

55(379)

60(413)

80(552)

Yield strength,min,kip/inch2(Mpa)

30(207)

35(241)

55(379)

Elongation(2"or 50mm)min,%

16

14

16

 3.The requirment of chemical composition

Element 

Chemical composition,%

 

UNS No.

 

R60702

R60704

R60705

Zirconium+Hafnium,Min''

99.2

97.5

95.5

Hafnium,Max

4.5

4.5

4.5

Ferrum+Chromium

0.2 Max

0.2~0.4

0.2 Max

Tin

...

1.0~2.0

...

Hydrogen,Max

0.005

0.005

0.005

Nitrogen,Max

0.025

0.025

0.025

Carbon,Max

0.05

0.05

0.05

Niobium

...

...

2.0~3.0

Oxygen,Max

0.16

0.18

0.18

zr702 zirconium pipe

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