ASTM A649/A649M-99(2003)

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Designation: A 649/A 649M – 99 (Reapproved 2003)
Standard Specification for
Forged Steel Rolls Used for Corrugating Paper Machinery
ThisstandardisissuedunderthefixeddesignationA649/A649M;thenumberimmediatelyfollowingthedesignationindicatestheyear
of original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.
A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope shells. Trunnions shall be made from forgings in Classes 1A,
2 1B, or 5 in Grade 2 strength level as restricted by Footnote B
1.1 This specification covers two kinds of rolls used in
in Table 2 or in forgings in either Class 3 or 4.
machinery for producing corrugated paperboard. Rolls are
1.4 The values stated in either inch-pound units or SI
fabricated of forged bodies and trunnions. The trunnions may
[metric] units are to be regarded separately as standards.
be bolted or shrink assembled on one or both ends of the body.
Within the text and tables, the SI units are shown in brackets.
A seal weld may be made at the body/trunnion interface. Roll
The values stated in each system are not exact equivalents;
shells are made of carbon/manganese, or low alloy steel as
therefore, each system must be used independent of the other.
hereinafter described, and are heat treated prior to assembly.
Combining values from the two systems may result in noncon-
Pressure rolls are surface hardened. Provision is made in
formance with the specification.
Supplementary Requirement S1 for the optional surface hard-
1.5 Unless the order specifies the applicable “M” specifica-
ening of corrugating rolls.
tion designation, the material shall be furnished to the inch-
1.2 Corrugatingandpressurerollsmadetothisspecification
pound units.
shall not exceed 30 in. [760 mm] in inside diameter. The wall
1.6 Exceptasspecificallyrequiredinthisstandard,allofthe
thickness of the roll body shall not be less than ⁄12 of the
provisions of Specification A788 apply.
insidediameteror1in.[25mm],whicheverisgreater,butshall
not exceed 4 in. [100 mm]. The wall thickness of the
2. Referenced Documents
corrugating roll is measured at the bottom of the corrugations
2.1 ASTM Standards:
in the location of the trunnion fit. The maximum operating
A275/A275M Test Method for Magnetic Particle Exami-
temperature of the roll is 600°F [315°C] and the maximum
nation of Steel Forgings
allowable working pressure is 250 psi [1.7 MPa]. The mini-
A370 TestMethodsandDefinitionsforMechanicalTesting
mum design temperature shall be 40°F [4°C] for roll wall
of Steel Products
thicknesses up to 3 in. [75 mm]. For roll wall thicknesses over
A788 Specification for Steel Forgings, General Require-
3 in. [75 mm] to 4 in. [100 mm], the minimum design
ments
temperature shall be 120°F [50°C]. The maximum stresses on
E165 Practice for Liquid Penetrant Examination
therollbodiesfromthecombinedinternalandexternalloading
are limited to 18 750 psi [129 MPa] for the Class 2 pressure
3. Ordering Information
roll bodies, and 20 000 psi [138 MPa] for Class 1A, 1B, or 5
3.1 Ordersformaterialunderthisspecificationshallinclude
pressure or corrugating roll bodies in Grades 1 or 2. For the
theinformationrequiredbySpecificationA788.Thepurchaser
trunnions, the maximum stresses from the combined internal
should refer to SpecificationA788 for other relevant informa-
and external loading are limited to 15 000 psi [103.4 MPa] for
tion.
Classes3or4,or20 000psi[138MPa]forClasses1A,1B,or
3.2 The additional ordering information given in Specifica-
5inGrade2only.TheGrade1strengthlevelisnotpermissible
tion A788 shall be specified as necessary to describe ad-
for trunnions.
equately the desired material.
1.3 Referring to Table 1, material to Classes 1A, 1B, or 5
shall be used for the manufacture of corrugating or pressure
4. Materials and Manufacture
roll shells, and Class 2 shall be used only for pressure roll
4.1 Forging Process:
4.1.1 Roll body forgings may be made as solid forgings and
subsequently bored.
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel,
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
A01.06 on Steel Forgings and Billets.
Current edition approved Oct. 1, 2003. Published November 2003. Originally For referenced ASTM standards, visit the ASTM website, www.astm.org, or
approved in 1971. Last previous edition approved in 1999 as A649/A649M–99. contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
For ASME Boiler and Pressure Vessel Code applications see related Specifi- Standards volume information, refer to the standard’s Document Summary page on
cation SA-649/SA-649M in Section II of that Code. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
A 649/A 649M – 99 (2003)
TABLE 1 Chemical Requirements
Composition, %
Class 1A Class 1B Class 2 Class 3 Class 4 Class 5
Carbon 0.45–0.60 0.40–0.60 0.55 max 0.35 max 0.35 max 0.50–0.60
Manganese 0.55–1.05 0.60–0.95 0.50–0.90 0.40–0.70 0.60–1.05 0.90–1.50
Phosphorus 0.025 max 0.025 max 0.025 max 0.025 max 0.025 max 0.025 max
Sulfur 0.025 max 0.025 max 0.025 max 0.025 max 0.025 max 0.025 max
A
Silicon 0.15–0.35 0.15–0.35 0.15–0.35 max 0.15–0.35 0.15–0.35 max 0.15–0.35
Nickel . 1.55–2.00 . . . 0.60 max
Chromium 0.80–1.15 0.65–0.95 . 0.80–1.15 . 0.30 max
Molybdenum 0.15–0.50 0.20–0.45 . 0.15–0.25 . 0.15 max
A
When vacuum carbon deoxidation (VCD) is used the silicon content shall be 0.10 % maximum.
TABLE 2 Tensile Requirements
Elongation in 2 in. Reduction of
A
Yield Strength, min Tensile Strength, min
Class Grade or 50 mm, %, min Area, %, min
ksi ksi
1A, 1B or 5 1 130 150 12.0 30
B
1A, 1B or 5 2 65 100 14.0 30
2 . 37.5 75 20.0 50.0
3 or 4 . 30 60 22.0 55
A
0.2 % offset.
B
For trunnion application, a maximum tensile strength of 125 ksi [860 MPa] applies for Grade 2 of Classes 1A, 1B, or 5.
4.1.2 Trunnions or gudgeons which are to be subsequently 5. Chemical Composition
assembled to form the roll shall be made as a solid forging or
5.1 Thesteelshallconformtotherequirementsforchemical
where practical upset from segments cut from billets or bars.
composition prescribed in Table 1.
4.2 Heat Treatment:
6. Mechanical Properties
4.2.1 Heat Treatment for Mechanical Properties (Require-
6.1 Tensile Requirements:
ments do not apply to surface treatment):
6.1.1 The material shall conform to the requirements for
4.2.1.1 Machining—The forged roll body shall have all
tensile properties prescribed in Table 2 when tested in accor-
surfaces rough machined, including boring, prior to heat
dance with Test Methods and Definitions A370. Tension test
treatment for mechanical properties.
specimens shall be the standard round ⁄2-in. [12.5 mm]
4.2.1.2 Roll bodies shall be normalized, liquid quenched,
diameter, 2-in. [50 mm] gage length. The y
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