ASTM A476/A476M-00(2014)

Standard Specification for Ductile Iron Castings for Paper Mill Dryer Rolls

ABSTRACT
This specification covers ductile iron castings for use in pressure containing paper mill dryer rolls. The castings shall be stress relieved through heat treatment and shall undergo chemical analysis and conform to the required chemical composition in total carbon, silicon, phosphorus, and sulfur. Tension test specimens shall be obtained from test coupons poured from the same iron as the castings represented and shall conform to the prescribed mechanical properties such as yield strength, tensile strength, and elongation. Hardness test shall be conducted on the material and shall meet the required Brinell hardness value.
SCOPE
1.1 This specification covers ductile iron castings for use in pressure containing paper mill dryer rolls at temperatures up to 450°F [230°C].  
1.2 No precise quantitative relationship can be stated between the properties of the iron in various locations of the same casting or between the properties of a casting and those of a test specimen cast from the same iron (see Appendix X1).  
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.  
1.3.1 Exception—Within the text, the SI units are shown in brackets.

General Information

• Status: Historical
• Publication Date: 31-Mar-2014
• ICS: 77.140.80 - Iron and steel castings
• Technical Committee: A04 - Iron Castings
• Drafting Committee: A04.02 - Malleable and Ductile Iron Castings

Relations

• Replaces: ASTM A476/A476M-00(2009) - Standard Specification for Ductile Iron Castings for Paper Mill Dryer Rolls
• Effective Date: 01-Apr-2014
• Referred By: ASTM A1095-15(2019) - Standard Specification for High-Silicon Molybdenum Ferritic Iron Castings
• Effective Date: 01-Apr-2014

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: A476/A476M −00 (Reapproved 2014)
Standard Specification for
1,2
Ductile Iron Castings for Paper Mill Dryer Rolls
This standard is issued under the fixed designationA476/A476M; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 4.1.1 Quantity,
4.1.2 Specification number and date of issue,
1.1 This specification covers ductile iron castings for use in
4.1.3 Description of casting by pattern number or drawing,
pressure containing paper mill dryer rolls at temperatures up to
4.1.4 Heat treatment, if required (see 5.1),
450°F [230°C].
4.1.5 Type of test coupon (see 9.2),
1.2 No precise quantitative relationship can be stated be-
4.1.6 Certification, if required (see 13.1),
tweenthepropertiesoftheironinvariouslocationsofthesame
4.1.7 Marking location (see 14.1), and
castingorbetweenthepropertiesofacastingandthoseofatest
4.1.8 Additional requirements.
specimen cast from the same iron (see Appendix X1).
5. Heat Treatment
1.3 The values stated in either SI units or inch-pound units
5.1 The castings may be stress relieved at a temperature not
are to be regarded separately as standard. The values stated in
to exceed 1200°F [650°C].
each system may not be exact equivalents; therefore, each
system shall be used independently of the other. Combining
6. Chemical Requirements
values from the two systems may result in non-conformance
6.1 The castings shall conform to the following chemical
with the standard.
requirements:
1.3.1 Exception—Within the text, the SI units are shown in
Total carbon, min, % 3.0
brackets.
Silicon, max, % 3.0
Phosphorus, max, % 0.08
2. Referenced Documents
Sulfur, max, % 0.05
3
2.1 ASTM Standards:
6.2 The castings shall have a carbon equivalent of 3.8 to 4.5
A644 Terminology Relating to Iron Castings
inclusive.
E8 Test Methods for Tension Testing of Metallic Materials
NOTE 1—The carbon content equivalent is calculated as follows:
E10 Test Method for Brinell Hardness of Metallic Materials
Total carbon + 0.3 (silicon + phosphorus)
E94 Guide for Radiographic Examination
6.3 The chemical analysis for total carbon shall be made on
E446 Reference Radiographs for Steel Castings Up to 2 in.
(50.8 mm) in Thickness either chilled cast pencil-type specimens or on thin wafers
1
approximately ⁄32 in. [0.8 mm] thick, cut from test coupons.
3. Terminology
Drillings shall not be used due to attendant loss of graphite.
3.1 Definitions for many terms common to iron castings are
7. Mechanical Properties
found in Terminology A644.
7.1 The iron represented by test coupons shall conform to
4. Ordering Information
tensile requirements prescribed in Table 1.
4.1 Ordersformaterialpurchasedtotherequirementsofthis
7.2 The yield strength prescribed in Table 1 may be deter-
specification should include the following information:
mined by any of the approved procedures described in 7.3 of
Test Methods E8.
1
This specification is under the jurisdiction of ASTM Committee A04 on Iron
Castings and is the direct responsibility of Subcommittee A04.02 on Malleable and 7.3 The Brinell hardness of the material shall be a minimum
Ductile Iron Castings.
of 201 HB. Hardness tests shall be conducted in accordance
Current edition approved April 1, 2014. Published April 2014. Originally
with Test Method E10, using a 3000-kgf load. The test may be
approved in 1962. Last previous edition approved in 2009 as A476/A476M - 00
made on either the casting or on a test coupon representing the
(2009). DOI: 10.1520/A0476_A0476M-00R14.
2
For ASME Boiler and Pressure Vessel Code Applications see related Specifi-
casting.
cations SA-467 in Section II of that Code.
3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 8. Workmanship, Finish, and Appearance
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
8.1 The castings shall conform to the dimensions on the
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. drawings furnished by the purchaser, or if no drawing has been
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
A476/A476M − 00 (2014)
TABLE 1 Tensile Requirements
Test Coupon Section Thickness 1 in. [25 mm] 3 in. [75 mm]
Tensile strength, min, ksi [MPa] 80 [555] 80 [555]
Yield strength, min, ksi [MPa] 60 [415] 60 [415]
Elongation in 2 in. [50 mm], min, % 3.0 [3.0] 1.0 [1.0]
provided, to the dimensions predicated by the pattern supplied
by the purchaser. Surfaces of the castings shall be free of
adheringsand.Runners,ri
...