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1.1 This specification covers ductile iron castings for use in pressure containing paper mill dryer rolls at temperatures up to 450oF [230oC].
1.2 No precise quantitative relationship can be stated between the properties of the iron in various locations of the same casting or between the properties of a casting and those of a test specimen cast from the same iron (see Appendix S1).
1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A644 Terminology Relating to Iron Castings
E8 Test Methods for Tension Testing of Metallic Materials
E10 Test Method for Brinell Hardness of Metallic Materials
E94 Guide for Radiographic Examination
E446 Reference Radiographs for Steel Castings Up to 2 in. (50.8 mm) in Thickness
ICS Number Code 77.140.80 (Iron and steel castings)
UNSPSC Code 31101618(Ductile iron sand casting)