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ASTM A427-02

(Specification)

Standard Specification for Wrought Alloy Steel Rolls for Cold and Hot Reduction

Standard Specification for Wrought Alloy Steel Rolls for Cold and Hot Reduction

SCOPE
1.1 This specification covers homogeneous wrought hardened alloy steel rolls for use in cold or hot reduction of flat rolled ferrous and nonferrous products.

General Information

Status
Historical
Publication Date
09-Sep-2002
ICS
77.140.99 - Other iron and steel products
Technical Committee
A01 - Steel, Stainless Steel and Related Alloys
Drafting Committee
A01.06 - Steel Forgings and Billets
Current Stage
Ref Project

Relations

Replaces
ASTM A427-74(2001) - Standard Specification for Wrought Alloy Steel Rolls for Cold and Hot Reduction
Effective Date
10-Sep-2002
Replaced By
ASTM A427-02(2007) - Standard Specification for Wrought Alloy Steel Rolls for Cold and Hot Reduction
Effective Date
01-Nov-2007

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ASTM A427-02 - Standard Specification for Wrought Alloy Steel Rolls for Cold and Hot ReductionASTM A427-02 - Standard Specification for Wrought Alloy Steel Rolls for Cold and Hot Reduction
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ASTM A427-02 - Standard Specification for Wrought Alloy Steel Rolls for Cold and Hot Reduction
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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 427 – 02
Standard Specification for
1
Wrought Alloy Steel Rolls for Cold and Hot Reduction
This standard is issued under the fixed designation A 427; 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* 5. Manufacture
1.1 This specification covers homogeneous wrought hard- 5.1 The forged rolls shall receive their hot mechanical work
ened alloy steel rolls for use in cold or hot reduction of flat under a press or hammer of ample capacity to work the metal
rolled ferrous and nonferrous products. throughout its section. However, 6-in. (152-mm) diameter or
less rolls may be produced from rolled bars.
2. Referenced Documents
6. Discard
2.1 ASTM Standards:
2
A 788 Steel Forgings, General Requirements 6.1 Sufficient discard shall be made from each ingot to
2
A 956 Leeb Hardness Testing of Steel Products secure freedom from piping and undue segregation.
E 18 Test Methods for Rockwell Hardness and Rockwell
3 7. Chemical Requirements
Superficial Hardness of Metallic Materials
7.1 Unless specified by the purchaser, the chemical require-
E 92 Test Method for Vickers Hardness of Metallic Mate-
3
rials ments shall be at the discretion of the manufacturer.
3
E 140 Hardness Conversion Tables for Metals
8. Heat Treatment
E 448 PracticeforScleroscopeHardnessTestingofMetallic
3
8.1 The method of heat treatment and hardening shall be at
Materials
the option of the manufacturer.
3. Ordering Information
9. Hardness Requirements
3.1 The purchaser shall specify in the inquiry, contract, or
9.1 The manufacturer shall supply rolls to the hardness
order the complete dimensions, hardness range, surface finish,
ranges agreed upon by the purchaser and the manufacturer.
and use. Any other requirements shall also be specified.
9.2 Ahardness range of either 5 points Shore scleroscope or
3.2 Material supplied to this specification shall conform to
100 numbers Vickers hardness is permissible.
the requirements of Specification A 788, which outlines addi-
tional ordering information, manufacturing requirements, test-
10. Hardness Testing
ing and retesting methods and procedures, marking, certifica-
10.1 Each roll shall be tested for hardness and shall be
tion, product analysis variations, and additional supplementary
within limits specified on the order. The Shore forged roll
requirements.
scleroscope (HFRS or HFRS ), Rockwell hardness tester,
C D
4. Process
Vickers hardness penetrator, or Leeb hardness tester (in accor-
dance with Test Method A 956) may be used to determine
4.1 The steel shall be made by the electric-furnace process.
compliance with the hardness range specified. The approxi-
Additional refining by vacuum arc remelt or electroslag is
mate relationship between Shore HFRS scleroscope and
permitted.
C
diamond pyramid hardness is shown in Table 1.
10.2 The stage of processing at which hardness testing is
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
conducted and the number and location of tests may be agreed
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
upon by the purchaser and the manufacturer.
A01.06 on Steel Forgings and Billets.
Current edition approved September 10, 2002. Published June 2003. Originally
10.3 A sufficient number of hardness tests shall be made to
approved in 1958. Last previous edition approved in 2001 as A 427 – 74 (2001).
ensure the required uniformity, both longitudinally and circum-
2
Annual Book of ASTM Standards, Vol 01.05.
3
ferentially.
Annual Book of ASTM Standards, Vol 03.01.
*ASummary 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 ----------------------
A427–02
A
TABLE 1 Approximate Relationship Between Shore HFRS Scleroscope and Diamond Pyramid Hardness for Wrought Hardened Alloy
c
Steel Rolls
NOTE 1—This table is recommended for rolls over 6 in. (152 mm) in diameter. There is a tendency for rolls smaller than 6 in. in diameter with the
same Vickers hardness to show lower scleroscope readings.
NOTE 2— For scleroscope hardness determinations, the calibration to standard reference blocks, and the verification of instrument are a constant
necessity. See details recommended in Practice E 448.
NOTE 3—For Rockwell and Vickers hardness determinations, reference may be made to Test Method E 18 and E 92.
NOTE 4—For hardness conversion tables for metals, see Tables E 140.
B B
Shore HFRS Scleroscope Hardness Vickers Hardness Shore HFRSc Scleroscope Hardness Vicker
...

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