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ASTM A983/A983M-05

(Specification)

Standard Specification for Continuous Grain Flow Forged Carbon and Alloy Steel Crankshafts for Medium Speed Diesel Engines

Standard Specification for Continuous Grain Flow Forged Carbon and Alloy Steel Crankshafts for Medium Speed Diesel Engines

SCOPE
1.1 This specification covers continuous grain flow forged carbon and alloy steel crankshafts for medium speed diesel and natural gas engines.
1.2 The steel used in the manufacture of the forgings is required to be vacuum degassed.
1.3 The choice of steel composition grade for a given strength class is normally made by the forging supplier, unless otherwise specified by the purchaser.
1.4 Provision is made for treatment of designated surfaces of the crankshaft to provide enhanced fatigue strength, or wear resistance, or both.
1.5 Except as specifically required in this specification, all provisions of Specification A 788/A 788M apply.
1.6 Unless the order specifies the applicable "M" specification designation, the material shall be furnished to the inch-pound units.
1.7 The values stated in either inch-pound units or SI (metric) units are to be regarded separately as standards. Within the text and tables the SI units are shown in brackets. The values stated in each system are not exact equivalents, therefore each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification.

General Information

Status
Historical
Publication Date
30-Sep-2005
ICS
27.020 - Internal combustion engines
Technical Committee
A01 - Steel, Stainless Steel and Related Alloys
Drafting Committee
A01.06 - Steel Forgings and Billets
Current Stage
Ref Project

Relations

Replaces
ASTM A983/A983M-04 - Standard Specification for Continuous Grain Flow Forged Carbon and Alloy Steel Crankshafts for Medium Speed Diesel Engines
Effective Date
01-Oct-2005
Replaced By
ASTM A983/A983M-06 - Standard Specification for Continuous Grain Flow Forged Carbon and Alloy Steel Crankshafts for Medium Speed Diesel Engines
Effective Date
01-Sep-2006
Referred By
ASTM A788/A788M-23 - Standard Specification for Steel Forgings, General Requirements
Effective Date
01-Oct-2005
Referred By
ASTM A456/A456M-08(2023) - Standard Specification for Magnetic Particle Examination of Large Crankshaft<brk/> Forgings
Effective Date
01-Oct-2005
Referred By
ASTM A986/A986M-01(2021) - Standard Specification for Magnetic Particle Examination of Continuous Grain Flow Crankshaft Forgings
Effective Date
01-Oct-2005

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ASTM A983/A983M-05 - Standard Specification for Continuous Grain Flow Forged Carbon and Alloy Steel Crankshafts for Medium Speed Diesel EnginesASTM A983/A983M-05 - Standard Specification for Continuous Grain Flow Forged Carbon and Alloy Steel Crankshafts for Medium Speed Diesel Engines
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ASTM A983/A983M-05 - Standard Specification for Continuous Grain Flow Forged Carbon and Alloy Steel Crankshafts for Medium Speed Diesel Engines
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: A 983/A 983M – 05
Standard Specification for
Continuous Grain Flow Forged Carbon and Alloy Steel
1
Crankshafts for Medium Speed Diesel Engines
This standard is issued under the fixed designationA 983/A 983M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope* A 966/A 966M Test Method for Magnetic Particle Exami-
nation of Steel Forgings Using Alternating Current
1.1 This specification covers continuous grain flow forged
A 986/A 986M Specification for Magnetic Particle Exami-
carbon and alloy steel crankshafts for medium speed diesel and
nation of Continuous Grain Flow Crankshaft Forgings
natural gas engines.
E45 Test Methods for Determining the Inclusion Content
1.2 The steel used in the manufacture of the forgings is
of Steel
required to be vacuum degassed.
E112 Test Methods for Determining Average Grain Size
1.3 The choice of steel composition grade for a given
E 340 Test Method for Macroetching Metals and Alloys
strength class is normally made by the forging supplier, unless
2.2 Other Standards:
otherwise specified by the purchaser.
3
AWS D1.1 Structural Welding Code
1.4 Provision is made for treatment of designated surfaces
4
DIN 50 602
of the crankshaft to provide enhanced fatigue strength, or wear
JIS G 0555 Microscopic Testing Method for the Non-
resistance, or both.
5
Metallic Inclusions in Steel
1.5 Except as specifically required in this specification, all
provisions of Specification A 788/A 788M apply.
3. Ordering Information
1.6 Unless the order specifies the applicable “M” specifica-
3.1 In addition to the ordering requirements of Specification
tion designation, the material shall be furnished to the inch-
A 788/A 788M, the following items should be included:
pound units.
3.2 Choice of mechanical property class from Table 1.
1.7 The values stated in either inch-pound units or SI
3.3 Choice of chemical composition Grade from Table 2 if
(metric) units are to be regarded separately as standards.
this purchaser option is exercised (4.1.3).
Within the text and tables the SI units are shown in brackets.
3.4 Whether surface hardening in designated areas is re-
The values stated in each system are not exact equivalents,
quired, referencing Supplementary Requirements S10, S11, or
therefore each system must be used independently of the other.
S12, and providing the necessary instructions.
Combining values from the two systems may result in noncon-
3.5 For crankshafts designed to include welded counter-
formance with the specification.
weightsthepurchasermayspecifyanalternateweldingcodeto
2. Referenced Documents AWS D1.1 Structural Welding Code.
2
3.6 For alternate tensile and hardness test requirements
2.1 ASTM Standards:
specify Supplementary Requirement S2.
A 370 Test Methods and Definitions for MechanicalTesting
of Steel Products
4. Materials and Manufacture
A 503 Specification for Ultrasonic Examination of Forged
4.1 Melting Practice:
Crankshafts
4.1.1 The steel making section of Specification A 788/
A 788/A 788M Specification for Steel Forgings, General
A 788M shall apply together with mandatory vacuum degas-
Requirements
sing.
4.1.2 Supplementary Requirement S1 may be used if non-
1
metallic inclusion rating of the steel is required.
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
A01.06 on Steel Forgings and Billets.
3
Current edition approved Oct. 1, 2005. Published October 2005. Originally Available from American Welding Society, 550 NW Le Jeune Rd., Miami, FL
approved in 1998. Last previous edition approved in 2004 as A 983/A 983M–04. 33126.
2 4
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Available from Verlag Stahleisen mbh, Postfach 8229, D-4000 Dusseldorf,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Germany.
5
Standards volume information, refer to the standard’s Document Summary page on Available from Japanese Standards Association, 1-24 Akasaka 4, Minato-Ku,
the ASTM website. Tokyo 107, Japan.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
A 983/A 983M – 05
TABLE 1 Tensile and Hardness Requirements
Class 1 Class 2 Class 3 Class 4 Class 5 Class 6 Class 7
Tensile Strength, ksi [Mpa] min 80 [550] 100 [690] 110 [760] 120 [830] 130 [900] 140 [965] 150 [1035]
Yield Strength, (0.2% offset), ksi [Mpa] min 45 [310] 70 [485] 8
...

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Standard Specification for Continuous Grain Flow Forged Carbon and Alloy Steel Crankshafts for Medium Speed Diesel Engines

ABSTRACT
This specification deals with continuous grain flow carbon and alloy steel crankshaft forgings intended for medium speed diesel and natural gas engines. The steel used in the manufacture of the forgings is required to be vacuum degassed. Heat treatment, which may be done either before or after rough machining, shall consist of normalizing followed by tempering at a subcritical temperature, or austenitizing, liquid quenching and subcritical tempering. Charpy impact and tensile tests, which shall be performed at a frequency of one test per heat treatment load, shall be used to evaluate tensile strength, yield strength, elongation, reduction of area, and Brinell hardness requirements of forgings. Chemical composition requirements shall also be examined by heat analysis. Grain size tests and non-destructive magnetic particle examinations shall be conducted as well. When required by the purchaser, crankshafts may be surface hardened in designated areas for the purposes of enhanced wear resistance and fatigue strength.
SCOPE
1.1 This specification covers continuous grain flow forged carbon and alloy steel crankshafts for medium speed diesel and natural gas engines.  
1.2 The steel used in the manufacture of the forgings is required to be vacuum degassed.  
1.3 The choice of steel composition grade for a given strength class is normally made by the forging supplier, unless otherwise specified by the purchaser.  
1.4 Provision is made for treatment of designated surfaces of the crankshaft to provide enhanced fatigue strength, or wear resistance, or both.  
1.5 Except as specifically required in this specification, all provisions of Specification A788/A788M apply.  
1.6 Unless the order specifies the applicable “M” specification designation, the material shall be furnished to the inch-pound units.  
1.7 The values stated in either inch-pound units or SI (metric) units are to be regarded separately as standard. Within the text and tables the SI units are shown in brackets. The values stated in each system are not necessarily exact equivalents; therefore, to ensure conformance with the standard, each system shall be used independently of the other, and values from the two systems shall not be combined.  
1.8 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.

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5.1 This test method was developed to assess the performance of an engine oil to control engine wear and deposits under heavy-duty operating conditions selected to accelerate soot generation, valve train wear, and deposit formation in a turbocharged, aftercooled four-stroke-cycle diesel engine equipped with exhaust gas recirculation hardware.  
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1.1 The test method covers a heavy-duty diesel engine test procedure conducted under high soot conditions to evaluate oil performance with regard to valve train wear, top ring wear, sludge deposits, and oil filter plugging in an EGR environment. This test method is commonly referred to as the Cummins ISM Test.2  
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1.4 Table of Contents:    
Section  
Scope  
1  
Referenced Documents  
2  
Terminology  
3  
Summary of Test Method  
4  
Significance and Use  
5  
Apparatus  
6  
Test Engine Configuration  
6.1  
Test Engine  
6.1.1  
Oil Heat Exchanger, Adapter Blocks, Block Off Plate  
6.1.2  
Oil Filter Head Modification  
6.1.3  
Oil Pan Modification  
6.1.4  
Engine Control Module (ECM)  
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Engine Position Sensor  
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Barometric Pressure Sensor  
6.1.8  
Turbocharger Controller  
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Air Compressor and Fuel Pump  
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Exhaust System  
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7.3  
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7.4  
Solvent  
7.5  
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8  
Cleaning of Parts  
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General  
8.1.1  
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8.1.2  
Cylinder Head  
8.1.3  
Rocker Cover and Oil Pan  
8.1.4  
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8.1.5  
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ABSTRACT
This specification deals with continuous grain flow carbon and alloy steel crankshaft forgings intended for medium speed diesel and natural gas engines. The steel used in the manufacture of the forgings is required to be vacuum degassed. Heat treatment, which may be done either before or after rough machining, shall consist of normalizing followed by tempering at a subcritical temperature, or austenitizing, liquid quenching and subcritical tempering. Charpy impact and tensile tests, which shall be performed at a frequency of one test per heat treatment load, shall be used to evaluate tensile strength, yield strength, elongation, reduction of area, and Brinell hardness requirements of forgings. Chemical composition requirements shall also be examined by heat analysis. Grain size tests and non-destructive magnetic particle examinations shall be conducted as well. When required by the purchaser, crankshafts may be surface hardened in designated areas for the purposes of enhanced wear resistance and fatigue strength.
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1.1 This specification covers continuous grain flow forged carbon and alloy steel crankshafts for medium speed diesel and natural gas engines.  
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SCOPE
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ABSTRACT
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1.1 This specification2 covers hot- and cold-worked precipitation-hardenable nickel alloy rod, bar, forgings, and forging stock for moderate or high temperature service (Table 1).  
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.  
1.3 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 become familiar with all hazards including those identified in the appropriate Safety Data Sheet (SDS) for this product/material as provided by the manufacturer, to establish appropriate safety, health, and environmental practices, and determine the applicability of regulatory limitations prior to use.  
1.4 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.

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  • Technical specification
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ASTM
ASTM D8139-23(Specification)
Standard Specification for Semi-Rigid, Closed-Cell Polypropylene Foam, Preformed Expansion Joint Fillers for Concrete Paving and Structural Construction

SCOPE
1.1 This specification covers preformed expansion joint fillers made from closed-cell polypropylene foam materials having suitable compressibility, recovery from compression, nonextruding, and weather-resistant characteristics.  
1.1.1 Type I, closed-cell polypropylene foam.  
1.2 These joint fillers are intended for use in concrete pavements in full-depth joints. There are several variations in size with typical thicknesses of 1/2 in. (12.7 mm), 3/4 in. (19.05 mm), and 1 in. (25.4 mm); typical widths of 31/2 in. (88.9 mm), 4 in. (101.6 mm), 5 in. (127 mm), 6 in. (152.5 mm), 7 in. (177.8 mm), 8 in. (203.2 mm), or 48 in. (1.2 m) sheet; and typical lengths of 5 ft (1.52 m) and 10 ft (3.05 m).  
1.3 The values stated in inch-pound units are to be regarded as the 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.

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    2 pages
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  • Technical specification
    2 pages
    English language
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