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UNS R60702

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Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003149
EISBN: 978-1-62708-199-3
... Grades Nonnuclear grades, also referred to as industrial alloys, are used primarily in chemical-processing equipment (i.e., pumps, valves, piping, and heat exchangers) and are described below. Grade 702 Grade 702 (UNS R60702) is a commercially pure zirconium that is similar to reactor-grade...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001084
EISBN: 978-1-62708-162-7
...-containing commercial grades of zirconium. They are used in nonnuclear applications such as chemical processing equipment, but they are similar in properties to the nuclear-grade alloys ( Table 6 ). The industrial alloy grades of zirconium are: Grade 702 (UNS R60702)—commercial pure zirconium...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004186
EISBN: 978-1-62708-184-9
..., for concentrations above 55% acid. Unalloyed zirconium (UNS R60702) and its alloys with tin and niobium, respectively (UNS R60704, UNS R60705), resist dilute phosphoric acid solutions at elevated temperatures, as shown in Table 2 ( Ref 16 ). Corrosion of zirconium alloys in phosphoric acid Table 2 Corrosion...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003826
EISBN: 978-1-62708-183-2
..., such as tantalum and tungsten, are not removed. To get the highest purity possible, the van Arkel-de Boer process and electron beam melting are used in sequence. The United States Government allows the export of high-hafnium (0.2% or greater) commercial-grade (nonnuclear) zirconium (UNS R60702) to most...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004204
EISBN: 978-1-62708-184-9
... R60702 contains a minimum of 99.2% (Zr+Hf), with a maximum hafnium content of 4.5%. The second alloy, UNS R60705, contains a minimum of (95.5% Zr+Hf), with a maximum of 4.5% Hf and 2.0 to 3.0% Nb. Both are approved for use in the construction of pressure vessels according to the ASME Boiler and Pressure...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003702
EISBN: 978-1-62708-182-5
... about corrosion, sometimes the direct result of poor communication and/or a lack of appreciation of the true service conditions ( Ref 5 ). As an example, a type 316 stainless steel (Unified Numbering System, or UNS, S31600) pipe was considered a suitable choice for admitting steam and subsequently air...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003782
EISBN: 978-1-62708-177-1
... to their corrosion resistance and low neutron cross section. Because of the excellent resistance to chemical corrosion, the commercial grades of zirconium (UNS R60702, R60705) are commonly used in chemical equipment for processing of organic and mineral acids, as well as strong alkaline environments. Hafnium...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004178
EISBN: 978-1-62708-184-9
... °F) and for 98 to 99% acid at 130 °C (265 °F) ( Ref 32 ). It is also reported to have excellent resistance to concentrated acid with oxidizing impurities. Other Metals and Alloys Zirconium The corrosion resistance of zirconium (R60702) in H 2 SO 4 depends on the formation of a highly...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004184
EISBN: 978-1-62708-184-9
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002362
EISBN: 978-1-62708-193-1
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004185
EISBN: 978-1-62708-184-9
... mm/yr (5 mils/yr) at 40 °C (105 °F). In 28% NH 4 OH solution at room temperature, the rate is 0.0025 mm/yr (∼0.1 mil/yr) ( Ref 39 ). Zirconium and Its Alloys Zirconium is resistant to NH 3 even at elevated temperatures. The corrosion rate of zirconium Zr702 (R60702) in wet NH 3 at 38 °C (100...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003309
EISBN: 978-1-62708-176-4
... is consistently higher than that of weld metal specimens ( Ref 66 ). Another application example of the rising step-load bend technique is the evaluation of potential-step polarization and hydrogen over-potential on crack propagation and crack arrest of T-250 maraging steel and PH-13-8Mo (UNS S13800) steel...
Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0003823
EISBN: 978-1-62708-183-2
... 4.5 … … … … … 0.2 (b) … 0.10 Zr702 R60702 99.2 4.5 … … … … … 0.2 (b) … 0.16 Zr704 R60704 97.5 4.5 1.0–2.0 … … … … 0.2–0.4 … 0.18 Zr705 R60705 95.5 4.5 … 2.0–3.0 … … … 0.2 (b) … 0.18 Zr706 R60706 95.5 4.5 … 2.0–3.0 … … … 0.2 (b) … 0.16...