ASTM A290-02

Standard Specification for Carbon and Alloy Steel Forgings for Rings for Reduction Gears

SCOPE
1.1 This specification covers normalized and tempered, and quenched and tempered carbon and alloy steel forged or rolled rings for reduction gears.
1.2 Several grades and classes of steel are covered as follows:
1.2.1 Grade 1 Classes A and B, Grade 2 Classes C and D are carbon steel.
1.2.2 Grade 3 Classes E and F, Grade 4 Classes G, H, I, J, K and L, Grade 5 Classes M and P, and Grade 6 Class T are alloy steel.
1.2.3 All grades and classes are considered weldable under proper conditions. Welding techniques are of fundamental importance and it is presupposed that welding procedure and inspection will be in accordance with proper methods for the class of material used.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

General Information

• Status: Historical
• Publication Date: 09-Sep-2002
• ICS: 77.140.85 - Iron and steel forgings
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.06 - Steel Forgings and Billets

Relations

• Replaces: ASTM A290-95(1999) - Standard Specification for Carbon and Alloy Steel Forgings for Rings for Reduction Gears
• Effective Date: 10-Sep-2002
• Replaced By: ASTM A290/A290M-05 - Standard Specification for Carbon and Alloy Steel Forgings for Rings for Reduction Gears
• Effective Date: 01-Sep-2005

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 290 – 02
Standard Specification for
Carbon and Alloy Steel Forgings for Rings for Reduction
1
Gears
This standard is issued under the fixed designation A 290; 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* 4. Ordering Information and General Requirements
1.1 This specification covers normalized and tempered, and 4.1 In addition to the ordering information required by
quenched and tempered carbon and alloy steel forged or rolled Specification A 788, the purchaser shall specify in the inquiry,
rings for reduction gears. contract, and order the grade and class desired and the
1.2 Several grades and classes of steel are covered as supplementary requirements, if any, which should apply.
follows: 4.2 Material supplied to this specification shall conform to
1.2.1 Grade 1 ClassesAand B, Grade 2 Classes C and D are the requirements of Specification A 788, which outlines addi-
carbon steel. tional ordering information, manufacturing requirements, test-
1.2.2 Grade 3 Classes E and F, Grade 4 Classes G, H, I, J, ing and retesting methods and procedures, marking, certifica-
K and L, Grade 5 Classes M and P, and Grade 6 Class T are tion, product analysis variations, and additional supplementary
alloy steel. requirements.
1.2.3 All grades and classes are considered weldable under
5. Materials and Manufacture
proper conditions. Welding techniques are of fundamental
importance and it is presupposed that welding procedure and 5.1 Melting Process:
5.1.1 The steel shall be produced by any of the melting
inspection will be in accordance with proper methods for the
class of material used. requirements in Specification A 788, which may be supple-
mented by Supplementary Requirement S6, Vacuum Degas-
1.3 The values stated in inch-pound units are to be regarded
as the standard. The values given in parentheses are for sing.
5.2 Discard—Sufficient discard shall be taken from each
information only.
ingot to secure freedom from piping and undue segregation.
2. Referenced Documents
5.3 Forging Process—The forgings shall receive their hot
2.1 ASTM Standards: mechanical work in accordance with the requirements of
A 275/A275M Test Method for Magnetic Particle Exami- Specification A 788.
2
nation of Steel Forgings 5.4 Heat Treatment:
A 370 Test Methods and Definitions for MechanicalTesting 5.4.1 Cooling Prior to Heat Treatment— After forging and
3
of Steel Products before reheating for heat treatment, the forgings shall be
A 388/A388M Practice for Ultrasonic Examination of allowed to cool in a manner to prevent injury, to accomplish
2
Heavy Steel Forgings transformation, and prevent flakes.
A 788 Specification for Steel Forgings, General Require- 5.4.2 Heat treatment shall consist of normalizing and tem-
2
ments pering for Grade 1 classes A and B and quenching and
tempering for all other grades and classes.
3. Terminology
5.4.2.1 Normalizing—A furnace charge thus treated is
3.1 Definitions—Definitions of the terms used may be
termed a normalizing charge.
found in Specification A 788. 5.4.2.2 Quenching—The forgings shall be completely aus-
tenitizedandthenquenchedinasuitablemedium.Agroupthus
treated is termed a quenching charge.
1
5.4.2.3 Tempering—Afurnace charge thus treated is termed
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and RelatedAlloys, and is the direct responsibility of Subcommittee
a tempering charge. Minimum tempering temperatures shall be
A01.06 on Steel Forgings and Billets.
as follows:
Current edition approved September 2002. Published June 2003. Originally
Minimum Tempering Temperature
published as A 290 – 46 T. Last previous edition A 290 – 95 (1999).
2
Grade and Class °F (°C)
Annual Book of ASTM Standards, Vol 01.05.
3 Grade 1 Classes A and B 1200 (650)
Annual Book of ASTM Standards, Vol 01.03.
*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 ----------------------
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.
A 290–02
7.1.2 Test Method—Full-size tension and Charpy V-notch
Minimum Tempering Temperature
Grade and Class °F (°C)
impact tests shall be conducted in accordance with Test
Grade 2 ClassesC&D,E,F,G,H,M,P 1100 (595)
Methods and Definitions A 370.
Grade 3 ClassesE&F 1100 (595)
7.2 Brinell Hardness—Forgings shall be within the hard-
Grade 4 ClassesG&H 1100 (595)
...