The SAE standard J is commonly used for specifying automotive Ductile Iron castings. In an attempt to create a single, comprehensive system for designating . 23 Sep SURFACE VEHICLE STANDARD? J REV. FEB Issued Revised Superseding J JUN (R) Automotive. See the chemical composition and physical properties of SAE J Grade D ferritic, pearlitic Iron, find alternative materials, and connect with suppliers.

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SAE J for Automotive Ductile (Nodular) Iron Castings

Further values are given in annex D for guidance. Mean value from 3 tests. The grades, mechanical properties and metallurgical description are shown in Table 1. This standard, and its replacement, the EuroNorm standard EN will become increasingly important with the formation of the European Community. Impact strength energy loss J.

UNS numbers and corresponding American specifications. American Society for Testing Materials. Tensile strength, min, ksi MPa. Table 1 Grades of ductile iron. Other properties for information only. Boiling Point o F.

Beyond Specifications Standards and specifications ensure uniformity and assist both the designer and the foundry in defining the most important properties of the aae.

Before using any specification, the designer should obtain a complete copy of the current issue from the specifying body to familiarize himself with both the properties specified and the conditions under which they are to be measured.

SAE J434 Grade D4512 ferritic, pearlitic

Casting process for separately cast test pieces shall be agreed upon between manufacturer and purchaser. FCD min. The values for the materials normally apply to castings with thicknesses between 30 mm and mm and with a mass greater than kg or when the relevant wall thickness may vary between 30 mm and mm.


SAE specification for Ductile Iron casting and austempered Ductile Iron casting are currently being revised so they were not available as of the time of this printing. Designers should take advantage of these capabilities to obtain assured quality which is superior to that required by specifications.

A wide variety of properties are possible. Range specified by agreement.

SAE J434 for Automotive Ductile (Nodular) Iron Castings

B Not intentionally added. Pearlite or temper structure. Chemical Requirements The castings shall conform to the following requirements for swe composition Note 3: Tensile Requirements for Special Applications. We advise that you only use the original value or one i434 its raw conversions in your calculations to minimize rounding error. This inference is incorrect, and high quality castings, whose properties either consistently exceed requirements, or fall well within specified ranges, offer the designer a competitive edge.

To see MatWeb’s complete data sheet for this material including material property data, metal compositions, material suppliers, etcplease click the button below. Login to see your most recently viewed materials here. The values for the materials apply to castings cast in sand moulds of comparable thermal diffusivity. SAE J j34 Automotive Ductile Nodular Iron Castings The SAE standard covers the minimum mechanical properties measured on separately cast test j44 of varying thickness and micro-structural requirements for ductile iron castings used in automotive and allied industries.


Other Standards This section also summarizes the national standards for Ductile Iron for the other major industrialized countries and the international ISO standard. Grade Tensile strength, R m1 min. Elongation in 2 in. The mechanical properties are given for information only. The values for these maerials apply to castings cast in sand moulds of comparable thermal diffusivity.

Tensile strength, min, psi. Over 30, up to and incl. FCD A Over 30, up to se incl.

English, SI units, and non-SI metric units. Through commitments to SPC and continual quality improvement, many foundries have developed the capability to produce castings whose higher quality can be demonstrated statistically.

It is the responsibility of both the designer and the foundry to be aware of the role and the limitations of specifications and to agree upon a specification that provides the optimum ratio of performance to cost. Yield strength, min, MPa. Questions or comments about MatWeb? If castings are heat-treated, prior approval from the customer is required.

While not itself a specification, the UNS designation is gaining some degree of acceptance in North America as a useful means of simplifying and correlating the various existing specifications.