ADI; ASTM AM, ASTM (in-lb units) ASTM M (SI units) Austempered Ductile Iron (ADI) offers low cost, design flexibility. ASTM A is an alloyed nodular iron which is heat treated to achieve the desired properties. Austempered ductile iron (ADI) is a. This standard is issued under the fixed designation A/AM; the number 1 This specification is under the jurisdiction of ASTM Committee A04 on Iron.

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ASTM A ADI Grade / (Grade 2)

Or if you don’t have an account with us yet, then click here to register. Workmanship, Finish, and Appearance The atsm, results, and technical data from this site may not be reproduced either electronically, photographically or substantively without permission from MatWeb, LLC.

The amount of residual Mg plus the amounts of these elements should not exceed 0. In some cases, the maximum acceptable quantities of these microconstituents and the location s within the casting may be established by agreement between the manufacturer, heat treater, and the purchaser.

It also depends on the capabilities of the speci?

ADI offers one of the best combinations when it comes to lower costs, design flexibility, machinability and strength-to-weight ratio. Login to see your most recently viewed materials here. Within the text, the SI units are shown in brackets [ ]. This agreement should include a de? This can be done by sectioning a casting, examining the microstructure in that section, and then comparing the results with that of a premachined test bar that has been austempered in the same furnace load.


ASTM A – Standard Specification for Austempered Ductile Iron Castings球墨铸铁等温淬火标准_百度文库

ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Proper molding control will minimize surface defects and other sub-surface discontinuities. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. Tension test specimens shall be machined only from Positions A preferred or B in Fig.

ASTM A897-A897M-16

We deal strictly in the sourcing of castings and machined castings. The purchaser should establish by contract agreement, at the time of ordering, the responsibility of the various parties for meeting the specification requirements.

We can provide raw castings or complete assemblies and everything in between painting, heat treat and machining.

Another benefit of designing with ADI is the improved abrasion resistance properties. Proper purchasing, storage and use of charge materials will minimize the occurrence of carbides and gas defects.

Referenced Documents purchase separately The aztm listed below are referenced within the subject standard but are not provided as part of the standard. Its strength, fatigue strength and toughness are equal or better than steel, while its damping property is five times greater than steel. We appreciate your input. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.


The grade of ADI is determined by the chemistry of the metal at the foundry level and the quench temperature utilized at the heat treating company.

The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Copper Copper may be added to ADI to increase hardenability in additions up to 0. Responsibility for meeting the speci?

Combining values from the two systems may result in non-conformance with the standard. Excessively high levels of Si can suppress ausferrite in localized areas by stabilizing ferrite. The purchaser should establish by contract agreement, at the time of ordering, the responsibility of the various parties for meeting the speci?

Data sheets for overmetals, plastics, ceramics, and composites.

The 10 mm ball and kg load shall be used unless otherwise speci? The size and type of coupon cast to represent the casting shall be at the option of the purchaser. Ductile iron, with its relative ease of use and low cost of manufacture, has been one of the largest beneficiaries of the q897 process.

Our tooling options include no bake and green sand molding. Because it can be cast like any other ductile iron, ADI offers all the production advantages of a conventional ductile iron casting.