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Thinner cell phone casings and business card holders are just two of the varied applications for a new high fluidity zinc die casting alloy. This casting is now covered by a new ASTM standard, ASTM B989 , Specification for High Fluidity (HF) Zinc-Aluminum Alloy in Ingot Form for Thin Wall Die Castings. The HF alloy was developed through a project coordinated by the Cast Metals Coalition, an…, ASTM Committee B02 Next Meeting:, Nov. 10-12, 2014, November committee week, New Orleans, La., Technical Contact:, John Malmgreen, Eastern Alloys Inc., Maybrook, N.Y., Phone: 845-427-2151; jmalmgreen@eazall.com, ASTM Staff Contact:, Jeffrey Adkins, Phone: 610-832-9738; jadkins@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org Release #9640
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A proposed ASTM standard will be useful in covering the level of defects that exist in hot rolled rod coil. The proposed standard, ASTM WK37796 , Specification for General Requirements for Hot Rolled Rod Coil, is being developed by Subcommittee B02.07 on Refined Nickel and Cobalt and Their Alloys , part of ASTM International Committee B02 on Nonferrous Metals and Alloys . According to Larry Paul…, ASTM Committee B02 Next Meeting:, Nov. 12-14, 2012, November Committee Week, Atlanta, Ga., Technical Contact:, Larry Paul, ThyssenKrupp VDM USA, LLC, Peru, Ind., Phone: 765-689-0215; larry.paul@thyssenkrupp.com, ASTM Staff Contact:, Jeffrey Adkins, Phone: 610-832-9738; jadkins@astm.org, ASTM PR Contact:, Barbara Schindler, Phone: 610-832-9603; bschindl@astm.org R elease #9286
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The creation of new nickel base alloys in pipe and tube forms, used in the oil and power industries, was the driving force for developing a new ASTM International standard, ASTM B983 , Specification for Precipitation Hardened or Cold Worked, Seamless Nickel Alloy Pipe and Tube. ASTM B983 was developed by Subcommittee B02.07 on Refined Nickel and Cobalt and Their Alloys , part of ASTM…
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Current members of ASTM International Committees C01 on Cement and C09 on Concrete and Concrete Aggregates , and other interested parties, are invited to join a new C01 subcommittee, C01.98 on Sustainability Assessment. The scope of C01.98 is to support the development and maintenance of standards related to methodologies and metrics for assessing sustainability in the manufacture and use of…
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A new ASTM International practice provides a standard for preparing a mixture of cement paste that will simulate the shearing experienced by the cement paste in concrete. The new standard, ASTM C1738 , Practice for High-Shear Mixing of Hydraulic Cement Pastes, was developed by Subcommittee C01.22 on Workability , part of ASTM International Committee C01 on Cement . According to Chiara Ferraris,…
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ASTM International Committee B02 on Nonferrous Metals and Alloys is currently working on a proposed new ASTM International standard for zinc alloys being used for spin casting. The proposed standard, ASTM WK30745 , Specification for Zinc Alloys for Spin Casting, is being developed by Subcommittee B02.04 on Zinc and Cadmium. According to Bernard Potts, president of Village Casting Inc., and a…
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ASTM grain size is a property written into many specifications for metals, with finer grain sizes generally indicating better mechanical properties, such as formability. While measuring certain materials for such properties can be difficult, electron backscatter diffraction can provide precise determinations as well as give information on grain size distribution and statistics. A new ASTM…
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A recent revision to ASTM International standard E384 , Test Method for Knoop and Vickers Hardness of Materials, expands the range of its coverage. The standard is under the jurisdiction of Subcommittee E04.05 on Microindentation Hardness Testing, part of ASTM International Committee E04 on Metallography. The revision incorporates ASTM E92 , Test Method for Vickers Hardness of Metallic Materials…
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Rapid hardening hydraulic cements are used in a variety of applications in which reduced cementitious contents are desired or early service is needed. Included among these applications are paving, construction, stucco, mortar and block. A newly approved ASTM International standard covering these cements, ASTM C1600/C1600M , Specification for Rapid Hardening Hydraulic Cement, has been developed by…, Type URH, —ultra rapid hardening, for use where ultra high early strength is desired;, Type VRH, —very rapid hardening, for use where very high early strength is desired;, Type MRH, —medium rapid hardening, for use where mid-range rapid hardening, high early strength is desired; and, Type GRH, —general rapid hardening, for use when the higher strength properties of Type VRH or a Type MRH cement is not required. “ASTM C1600 lists minimum requirements for compressive strength, setting time, shrinkage and soundness (autoclave expansion),” says Hicks. “Optional specifications for sulfate expansion, alkali silicate reactions with aggregates, heat of hydration and expansion in water are also…
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A proposed new ASTM International standard will provide a definable quality specification for both producers and consumers of secondary Prime Western Grade zinc metal. WK16399 , Specification for Prime Western Grade-Recycled (PWG-R) Zinc Metal Produced from Recycled Zinc Secondary Material, is being developed by Subcommittee B02.04 on Zinc and Cadmium, part of ASTM International Committee B02 on…