ASTM A649/A649M-04
(Specification)Standard Specification for Forged Steel Rolls Used for Corrugating Paper Machinery
Standard Specification for Forged Steel Rolls Used for Corrugating Paper Machinery
SCOPE
1.1 This specification covers two kinds of rolls used in machinery for producing corrugated paperboard. Rolls are fabricated of forged bodies and trunnions. The trunnions may be bolted or shrink assembled on one or both ends of the body. A seal weld may be made at the body/trunnion interface. Roll shells are made of carbon/manganese, or low alloy steel as hereinafter described, and are heat treated prior to assembly. Pressure rolls are surface hardened. Provision is made in Supplementary Requirement S1 for the optional surface hardening of corrugating rolls.
1.2 Corrugating and pressure rolls made to this specification shall not exceed 30 in. [760 mm] in inside diameter. The wall thickness of the roll body shall not be less than 1/12 of the inside diameter or 1 in. [25 mm], whichever is greater, but shall not exceed 4 in. [100 mm]. The wall thickness of the corrugating roll is measured at the bottom of the corrugations in the location of the trunnion fit. The maximum operating temperature of the roll is 600°F [315°C] and the maximum allowable working pressure is 250 psi [1.7 MPa]. The minimum design temperature shall be 40°F [4°C] for roll wall thicknesses up to 3 in. [75 mm]. For roll wall thicknesses over 3 in. [75 mm] to 4 in. [100 mm], the minimum design temperature shall be 120°F [50°C]. The maximum stresses on the roll bodies from the combined internal and external loading are limited to 18750 psi [129 MPa] for the Class 2 pressure roll bodies, and 20000 psi [138 MPa] for Class 1A, 1B, or 5 pressure or corrugating roll bodies in Grades 1 or 2. For the trunnions, the maximum stresses from the combined internal and external loading are limited to 15000 psi [103.4 MPa] for Classes 3 or 4, or 20000 psi [138 MPa] for Classes 1A, 1B, or 5 in Grade 2 only. The Grade 1 strength level is not permissible for trunnions.
1.3 Referring to Table 1, material to Classes 1A, 1B, or 5 shall be used for the manufacture of corrugating or pressure roll shells, and Class 2 shall be used only for pressure roll shells. Trunnions shall be made from forgings in Classes 1A, 1B, or 5 in Grade 2 strength level as restricted by Footnote B in or in forgings in either Class 3 or 4.
1.4 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 independent of the other. Combining values from the two systems may result in nonconformance with the specification.
1.5 Unless the order specifies the applicable "M" specification designation, the material shall be furnished to the inch-pound units.
1.6 Except as specifically required in this standard, all of the provisions of Specification A 788 apply.
General Information
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Designation: A 649/A 649M – 04
Standard Specification for
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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* roll shells, and Class 2 shall be used only for pressure roll
2 shells. Trunnions shall be made from forgings in Classes 1A,
1.1 This specification covers two kinds of rolls used in
1B, or 5 in Grade 2 strength level as restricted by Footnote B
machinery for producing corrugated paperboard. Rolls are
in Table 2 or in forgings in either Class 3 or 4.
fabricated of forged bodies and trunnions. The trunnions may
1.4 The values stated in either inch-pound units or SI
be bolted or shrink assembled on one or both ends of the body.
[metric] units are to be regarded separately as standards.
A seal weld may be made at the body/trunnion interface. Roll
Within the text and tables, the SI units are shown in brackets.
shells are made of carbon/manganese, or low alloy steel as
The values stated in each system are not exact equivalents;
hereinafter described, and are heat treated prior to assembly.
therefore, each system must be used independent of the other.
Pressure rolls are surface hardened. Provision is made in
Combining values from the two systems may result in noncon-
Supplementary Requirement S1 for the optional surface hard-
formance with the specification.
ening of corrugating rolls.
1.5 Unless the order specifies the applicable “M” specifica-
1.2 Corrugatingandpressurerollsmadetothisspecification
tion designation, the material shall be furnished to the inch-
shall not exceed 30 in. [760 mm] in inside diameter. The wall
pound units.
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thickness of the roll body shall not be less than ⁄12 of the
1.6 Exceptasspecificallyrequiredinthisstandard,allofthe
insidediameteror1in.[25mm],whicheverisgreater,butshall
provisions of Specification A788 apply.
not exceed 4 in. [100 mm]. The wall thickness of the
corrugating roll is measured at the bottom of the corrugations
2. Referenced Documents
in the location of the trunnion fit. The maximum design
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2.1 ASTM Standards:
temperature (MDT) of the roll is 600°F [315°C] and the
A275/A275M Test Method for Magnetic Particle Exami-
maximumallowableworkingpressure(MAWP)is250psi[1.7
nation of Steel Forgings
MPa]. The minimum design temperature shall be 40°F [4°C]
A370 TestMethodsandDefinitionsforMechanicalTesting
for roll wall thicknesses up to 3 in. [75 mm]. For roll wall
of Steel Products
thicknessesover3in.[75mm]to4in.[100mm],theminimum
A788 Specification for Steel Forgings, General Require-
design temperature shall be 120°F [50°C]. The maximum
ments
stresses on the roll bodies from the combined internal and
E165 Practice for Liquid Penetrant Examination
external loading are limited to 18 750 psi [129 MPa] for the
Class 2 pressure roll bodies, and 20 000 psi [138 MPa] for
3. Ordering Information
Class1A,1B,or5pressureorcorrugatingrollbodiesinGrades
3.1 Material supplied to this specification shall conform to
1 or 2. For the trunnions, the maximum stresses from the
the requirements of Specification A788, which outlines addi-
combined internal and external loading are limited to 15 000
tional ordering information, manufacturing requirements, test-
psi [103.4 MPa] for Classes 3 or 4, or 20 000 psi [138 MPa]
ing and retesting methods and procedures, marking, certifica-
for Classes 1A, 1B, or 5 in Grade 2 only.The Grade 1 strength
tion, product analysis variations and additional supplementary
level is not permissible for trunnions.
requirements.
1.3 Referring to Table 1, material to Classes 1A, 1B, or 5
3.2 InadditiontotheorderingrequirementsofSpecification
shall be used for the manufacture of corrugating or pressure
A788, the purchaser shall include the maximum design
temperature (MDT), if lower than 600 °F [315 °C], and the
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maximum allowable working pressure (MAWP), if lower than
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel,
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
250 psi [1.7 MPa] as allowed in 1.2 of the Scope.
A01.06 on Steel Forgings and Billets.
Current edition approved Sept. 1, 2004. Published October 2004. Originally
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approved in 1971. Last previous edition approved in 2003 as A649/A649M–99 For referenced ASTM standards, visit the ASTM website, www.astm.org, or
(2003). contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
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For ASME Boiler and Pressure Vessel Code applications see related Specifi- Standards volume information, refer to the standard’s Document Summary page on
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