ASTM A1095-15(2019) - 1.11.2019
 
1. Scope

1.1 This specification covers castings made of high-silicon molybdenum ferritic iron, commonly known as SiMo. This specification includes castings with microstructures of spheroidal graphite (SG) SiMo iron, compacted graphite (CG) SiMo iron, and mixed graphite or medium-nodularity graphite (MG) SiMo iron. MG iron microstructure comprises a mixture of spheroidal and compacted graphite shapes. This standard specifies the condition, chemical composition, microstructure, and other technical requirements of three grades of ferritic cast irons, specified as SG SiMo, MG SiMo, and CG SiMo.

1.2 No precise quantitative relationship can be stated between the properties of iron in the various locations of the same casting or between the properties of castings and those of a test specimen cast from the same iron.

1.3 The values stated in SI units are to be regarded as standard. All chemical compositions are in mass percentage. No other units of measurement are included in this standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

 
2. Referenced Documents

E1184-21

Standard Practice for Determination of Elements by Graphite Furnace Atomic Absorption Spectrometry

D5381-93(2021)

Standard Guide for X-Ray Fluorescence (XRF) Spectroscopy of Pigments and Extenders

E8/E8M-24

Standard Test Methods for Tension Testing of Metallic Materials

E10-23

Standard Test Method for Brinell Hardness of Metallic Materials

E21-20

Standard Test Methods for Elevated Temperature Tension Tests of Metallic Materials

E1999-23

Standard Test Method for Analysis of Cast Iron by Spark Atomic Emission Spectrometry

J434

Automotive Ductile (Nodular) Iron Castings

J1887

Automotive Compacted Graphite Iron Castings

FED-STD-123

E351-18

Standard Test Methods for Chemical Analysis of Cast IronĀ“All Types

ASM Specialty Handbook, Cast Irons, 1999

ASM Specialty Handbook, Heat-Resistant Materials, 1999

A247-19

Standard Test Method for Evaluating the Microstructure of Graphite in Iron Castings

A395-68

Standard Specifications For Ductile Iron For Pressure Containing Castings For Use At Elevated Temperatures

A476/A476M-00(2022)

Standard Specification for Ductile Iron Castings for Paper Mill Dryer Rolls

A536-84(2019)e1

Standard Specification for Ductile Iron Castings (Includes all amendments and changes 5/3/2019).

A834-95(2020)

Standard Specification for Common Requirements for Iron Castings for General Industrial Use

A842-11A(2022)e1

Standard Specification for Compacted Graphite Iron Castings (Includes all amendments and changes 10/7/2022).

A897/A897M-22

Standard Specification for Austempered Ductile Iron Castings

D1976-20

Standard Test Method for Elements in Water by Inductively-Coupled Plasma Atomic Emission Spectroscopy

E228-22

Standard Test Method for Linear Thermal Expansion of Solid Materials With a Push-Rod Dilatometer

MIL-STD-129

Military Marking for Shipment and Storage

AFS (American Foundry Society), Foundrymens Guide to Ductile Iron Microstructures, 1984