Typical Mechanical Properties

Table 3. Typical Mechanical Properties of Molded and Sintered PTFE Resins ...

The typical mechanical properties that qualify PCTFE as a unique engineering thermoplastic are provided ia Table 1 the cryogenic mechanical properties are recorded ia Table 2. Other unique aspects of PCTFE are resistance to cold flow due to high compressive strength, and low coefficient of thermal expansion over a wide temperature range. 

AHoy base Rare-earth addition, % AST M Grade Condition Density, g/cc Ultimate tensile strength, MPa Typical mechanical properties, RT Yield Elongation, % strength, MPa Elastic modulus, GPa... 

This computation is also referred to as calculating the zinc equivalent of the alloy. The increase in strength in this alloy series is caused by increased amounts of beta phase in the stmcture. The silicon brasses show similar hardening effects accompanying a second phase. Typical mechanical properties and electrical conductivity for various cast alloys are shown in Table 2. 

TABLE 28-18 Typical Mechanical Properties of Selected Materials... 

Some typical mechanical properties of polystyrene are indicated in Table 16.2. It will be observed that there is little real difference in the mechanical properties of the four types of straight polystyrene considered in the table. 

Table 16.5 Typical mechanical properties of compression-moulded polystyrene plastics as measured by appropriate ASTM tests...

Typical mechanical properties of some commercial grades of nylon are given in Table 18.1. 

Unlike the lower molecular weight poly(ethylene oxide)s these materials are tough and extensible, owing to their high molecular weight and their crystallinity. Typical mechanical properties of the polymer are given in Table 19.5... 

Typical mechanical properties for bis-phenol A polycarbonates are listed in Table 20.3. 

The cast irons do not possess ductility. They cannot be pressed or forged even while heated however, their machining properties are considered good. Typical mechanical properties of various types of cast iron are given in Table 3.1. 

Mild steel (<0.25% carbon) is the most commonly used, readily welded construction material, and has the following typical mechanical properties (Grade 43A in BS4360 weldable structural steel) ... 

The approximate tensile strength is 14 ton/in7 at ordinary temperatures, and its strength decreases with increasing temperature. Typical mechanical properties of copper as a function of temperature are given in Table 3.16. 

BSI Designation Purity (% min.) Degree of Cold-Work Typical Mechanical Properties Tensile Strength Hardness (N/mm2) (DPN) ... 

BS Designation Main Alloying Elements Typical Mechanical Properties ... 

Typical mechanical properties of various types of cast iron. 55... 

The analyses of typical high-silicon irons are given in Table 3.56 and their typical mechanical properties in Table 3.57. 

Table 4.23 Typical mechanical properties of corrosion-resistant nickel alloys...

Table 4.39 Typical Mechanical Properties of Zinc Alloys...

The mechanical properties reported in the literature for molybdenum and its alloys are frequently at variance. That this should be so is not surprising as the properties of molybdenum and its alloys are greatly affected by the prior history of the material, both thermal and mechanical. Far too often values are used without reference to the sources of the material, various states of heat treatment, etc. When mechanical properties are an important feature of the design application, advice should always be sought on the suitability as only the manufacturer has the complete data on the history of his own product. Physical and some typical mechanical properties given for general guidance are shown in Tables 5.2 and 5.3. 

The mechanical properties of niobium are dependent on the previous history of the material and the manufacturer should be consulted if these properties are likely to be critical. Physical and some typical mechanical properties are set out in Tables 5.10 and 5.11. 

Deposits from Watts-type solutions Most coatings of nickel for engineering applications are electro deposited from a Watts-type bath Typical mechanical properties of deposits from Watts and sulphamate solutions are compared with those of wrought nickel in Table 13.15. 

Table 13.15 Typical mechanical properties of nickel deposits and wrought nickel...

Table 3-1 gives typical mechanical property data for four materials, the exact values of which are unimportant for this discussion. Aluminum and mild steel have been used as representative metals and polypropylene (PP) and glass fiber-TS polyester reinforced plastics (GRP) as representative plastics. Higher-performance types could have been selected for both the metals and plastics, but those in this table offer a fair comparison for the explanation being presented. 

TABLE 25-6b Typical Mechanical Properties of Low-Alloy AISI Steels ... 

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