ASTM publications

COMPOSITES news Plastics'l nstitute publications Mechanical Testing o f Plastics is the first publication to be produced under a new agreement between the Plastics Institute and the Butterworth Group, which enables PI Members to receive hard-backs, and costs £5.00 to non-Members (£4 to Members). Electrical Properties o f Polymeric Materials is written by M. E. Baird and describes the experimental behaviour and theoretical interpretation of the electrical properties of polymeric materials. It is divided into three main sections: Dielectric behaviour, Resistivity, and Dielectric breakdown. Techniques of measurement are briefly discussed and various suggestions about the nature of future research work are made. There is a complete reference section. The price to PI Members is £3.00: £6.00 to non-Members. Format: 11 3/4 in x 8 1/4 in (297 mm x 210 mm); 56 pages, illustrated. Sets of preprints from two recent PI conferences - Designing to avoid mechanical failure and Plastics in bearings are now available from the Institute. Orders and enquiries should be addressed to Mr T. Davies. The 19 papers making up the 'Designing to avoid mechanical failure' conference will cost £4 to PI Members and £8 to non-Members. 'Plastics in bearings' comprising eight papers and eight case-histories will cost £3 to Members and £6 to non-Members. Postage and packing of 25p will be charged on each set. The Plastics Institute, 11 Hobart Place, London SWl.

ASTM publications The Journal o f Tire Science and Technology was published for the first time by the ASTM in February 1973. The journal is quarterly and has a subscription price of $18.00 per annum.. It is a multi-disciplinary, tyre-centred journal which concentrates on tyre

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mechanics and dynamics, traction, wear, strength, and durability and encompasses the scope of ASTM Committee F - 9 on Tires. Subscriptions to the journal are available through ASTM. Payment must accompany the subscription.

'Compilation and index o f trade names, specifications and producers of stainless alloys and superalloys' ASTM Data Series, DS 45A, 58 pages, soft cover, $5.25 plus shipping charges; 5% domestic, 7% other countries. Stress corrosion cracking o f metals a state o f the art STP 518, 172 pages, soft cover, price $11.75, countries other than USA, Canada and Mexico add 5% shipping charges. Publication code No 0 4 - 5 1 8 0 0 0 - 2 7 . This publication contains information on steels, including the new high strength steels. Aluminium alloys are discussed with emphasis on the newer versions of high strength alloys and tempers specifically designed for stress corrosion resistance. Other engineering metals and their alloys are covered, including copper, titanium and nickel.

1973 Annual Book o f A S T M Standards Ferrous Metals - Parts 1, 2, 3 and 4. These four parts supersede all previous editions: they are brought up to date and published annually in April.

$32.25 (5% for shipping charges outside USA, Canada and Mexico). Publication code 0 1 - 0 0 3 0 7 3 - 0 2 . Part 4 - Structural steel, concrete reinforcing steel, boiler and pressure vessel plate; steel rails, wheel and tyres, bearing steel, steel forgings, 836 pages, 161 standards, hard cover. Price in North America $27.75 (5% shipping charges elsewhere). Publication Code 0 1 - 0 0 4 0 7 3 - 0 2 .

Applications o f Composite Materials, STP 524 details the advanced composite structures in use today, primarily in aviation but also the many commercial applications adapted from aerospace research. The contents of the book cover: commercial, military and VTOL aircraft, helicopter rotor blades, space structures and fabrication processing. STP 524, 191 pages, hard cover, price $16.75, less 20% reduction to ASTM Members. Publication Code 04-524000-33.

Elevated Temperature Properties as Influenced by Nitrogen Additions to Types 304 and 316 Austenitic Stainless Steels, STP 522 is aimed at the design engineer whose needs extend beyond the aids supplied by industry standards and codes. This book gives the designer thorough information about the behaviour of metals under stress at elevated temperatures. STP 522, 122 pages, soft cover. Price $10.50 in North America (5% shipping charges elsewhere). Publication Code 0 4 - 5 2 2 0 0 0 - 4 0 .

Part 2 - Ferrous castings and ferroalloys, contains 486 pages, 77 standards in a hard cover. Cost $15.75 in North America (5% shipping charges elsewhere). Publication code 01-002073-02.

The Directory o f Testing Laboratories, STP 333C, lists commercial and institutional laboratories which test commodities for acceptance ot for other purposes in accordance with standard specifications. The directory gives locations of those testing laboratories which are equipped and prepared to undertake testing on a fee basis. Information on the nature of tests and types of commodities tested has been collected on the basis of signed statements from officers of the laboratories listed. This is not, however, to be taken as an ASTM certified list.

Part 3 - Steel sheet, strip, bar, rod, wire, chain, spring, metallic coated products - contains 998 pages, 176 standards in a hard cover. Cost

Consulting chemists, engineers, metallurgists, research laboratories of manufacttiring companies and. other industrial research laboratories

Part 1 - Steel piping, tubing and fittings, contains 710 pages, 101 standards and comes in a hard cover. Price in USA, Canada and Mexico $23 (5% shipping charges elsewhere). Publication Code 0 1 - 0 0 1 0 7 3 - 0 2 .

COMPOSITES . JULY

1973

have been listed only when definite information has been supplied that they are engaged in testing on a fee basis. STP 333C, 56 pages, soft cover, price $3.75 in North American countries (5% shipping charges elsewhere). Publication Code 04-333030-32.

LP-gasEngine Fuels, STP 525 is the result of a symposium on the subject. sponsored by ASTM Committee D - 2 on Petroleum Products and Lubricants, the Natural Gas Processors Association and the National LP-Gas Association. The book provides up-to-date information on engine fuel applications, fuel handling and emissions characteristics. STP 525,140 pages, hard cover, price $4.75 in North America (5% shipping charges elsewhere). Publication Code 0 4 - 5 2 5 0 0 0 - 1 2 . ASTM, 1916 Race Street, Philadelphia, Pa 19103, USA

for increased flexibility and lightness with the attendant freedom from faller lock and the ensuing damage. Carbon Composites claim that these fallers are lighter than steel [less than 2 oz (~57 g) as opposed to 6 1/2 oz (~184 g)], stronger than steel, free from static, remain clean for longer periods, are flexible, free from failer locks, produce longer pin life (more than 2 000 h), require little lubrication and create no wear or damage to gill heads. Carbon Composites Ltd, Victoria Works, Cherry Street, Dalton Lane, Keighley, Yorkshire, England

Boron e p o x y reinforced a l u m i n i u m extrusions

Developed by Avco, a simple, low cost method of reinforcing aluminium structural elements, places the unidirectional boron epoxy composite Alurninium extrusion

Carbon fibre fallers

Boron epoxy J ~ composite .

~ I

Carbon Composites Limited have introduced a carbon fibre failer for use in the textile industry (Fig. l). For a long time the fallers used to remove impurities and balls of fibre during the drawing operation were made of steel. The use of carbon fibre fallers has been investigated

Fig.2

Boronepoxy reinforced extrusions

The elements are made by collimating coated boron filaments into a bundle (50% by volume of the hole size) and pulling the bundle through the length of the hole; a resin is then pumped through the hole and subsequently cured.

COMPOSITES . JU LY 1973

Fig.3

Typical part cross-section

lengths. Cost effective factors (ratio of weight of aluminium saved to weight of boron used) for structural components using these elements range from 2 to 4. Typical part costs are a function of the total quantity produced, but for total quantities of 1 0 0 0 - 1 0 000 ft (~30.5-305 m) the price per foot (0.3 m) for a finished part ranges from $25-$10 respectively and these can be made to customer specifications or, with special arrangements, the manufacturers are willing to supply materials and information for customers to make their own. Avco Systems Division, Lowell Industrial Park, Lowell, Massachusetts 01851, USA

Flame retardant additive

in an aluminium section (Fig.2) which serves as the mould and allows for conventional riveting, bolting etc.

Fig.1 Conventional steel fallers shown with their carbon fibre counterparts after the same period of operation

~

m

Fig.3 shows the variety of shapes fabricated using 606 I - T 6 and 7075-T6 aluminium alloys. Many variations in cross section are possible, with holes as small as 0.10 in (2.54 mm) diameter and as large as structural efficiency permits. To date, 12 ft (~3.7 m) lengths are made quite easily and the manufacturers see no limitation in producing 20 ft (~6 m)

BCE Hexabromide, a flame retardant additive developed by Phillips Petroleum UK Ltd, is currently being produced in small quantities at the company's pilot plant in Texas. The product is particularly effective when used in polypropylene fibres and polystyrene. Typical properties are a calculated molecular weight of 667.75, a melting point at 1 atm, of 416-422 °F ( 2 1 3 217°C) and a physical form of a freeflowing white powder. The material is a hexabromide of trans-bis (3-cyclohexenyl) ethylene (BCE). Small quantities, up to a few hundred pounds, at an approximate cost of $5 per lb ('~;10 per kg) ex-Borger, would be available a few weeks from order. The next stage in the project will be to make quantities of a few tons available at approximately $3 per lb (~$6 per kg) FOB, available 3 - 6 months after order. Phillips Petroleum UK Ltd, Portland House, Stag Place, London SW1E 5DA

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