ASTM A487/A487M-93(2003)

Standard Specification for Steel Castings Suitable for Pressure Service

SCOPE
1.1 This specification  covers low-alloy steels and martensitic stainless steels in the normalized and tempered, or quenched and tempered, condition suitable for pressure-containing parts. The weldability of the classes in this specification varies from readily weldable to weldable only with adequate precautions, and the weldability of each class should be considered prior to assembly by fusion welding.  
1.2 Selection will depend on design, mechanical, and service conditions. Users should note that hardenability of some of the grades mentioned may restrict the maximum size at which the required mechanical properties are obtained.  
1.3 The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the specification. Inch-pound units are applicable for material ordered to Specification A487 and SI units for material ordered to Specification A487M.

General Information

• Status: Historical
• Publication Date: 09-Apr-2003
• ICS: 77.140.80 - Iron and steel castings
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.18 - Castings

Relations

• Replaces: ASTM A487/A487M-93(1998) - Standard Specification for Steel Castings Suitable for Pressure Service
• Effective Date: 10-Apr-2003
• Replaced By: ASTM A487/A487M-93(2007) - Standard Specification for Steel Castings Suitable for Pressure Service
• Effective Date: 01-Nov-2007
• Referred By: ASTM A703/A703M-20a - Standard Specification for Steel Castings, General Requirements, for Pressure-Containing Parts
• Effective Date: 10-Apr-2003
• Referred By: ASTM A985/A985M-21 - Standard Specification for Steel Investment Castings General Requirements, for Pressure-Containing Parts
• Effective Date: 10-Apr-2003
• Referred By: ASTM A488/A488M-18e2 - Standard Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel
• Effective Date: 10-Apr-2003
• Referred By: ASTM A217/A217M-22 - Standard Specification for Steel Castings, Martensitic Stainless and Alloy, for Pressure-Containing Parts, Suitable for High-Temperature Service
• Effective Date: 10-Apr-2003

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 487/A 487M – 93 (Reapproved 2003)
Standard Specification for
Steel Castings Suitable for Pressure Service
ThisstandardisissuedunderthefixeddesignationA487/A487M;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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope E709 Guide for Magnetic Particle Examination
2 2.2 American Society of Mechanical Engineers:
1.1 This specification covers low-alloy steels and marten-
ASME Boiler and Pressure Vessel Code, Section IX
sitic stainless steels in the normalized and tempered, or
2.3 ManufacturersStandardizationSocietyoftheValveand
quenched and tempered, condition suitable for pressure-
Fittings Industry Standards:
containing parts. The weldability of the classes in this speci-
SP-55 Quality Standard for Steel Castings-Visual Method
fication varies from readily weldable to weldable only with
adequate precautions, and the weldability of each class should
3. General Conditions for Delivery
be considered prior to assembly by fusion welding.
3.1 Material furnished to this specification shall conform to
1.2 Selection will depend on design, mechanical, and ser-
therequirementsofSpecificationA703/A703Mincludingany
vice conditions. Users should note that hardenability of some
supplementary requirements that are indicated in the purchase
of the grades mentioned may restrict the maximum size at
order. Failure to comply with the general requirements of
which the required mechanical properties are obtained.
SpecificationA703/A703M constitutes nonconformance with
1.3 The values stated in either inch-pound units or SI units
this specification. In case of conflict between the requirements
are to be regarded separately as standard. Within the text, the
of this specification and Specification A703/A703M, this
SI units are shown in brackets. The values stated in each
specification shall prevail.
system are not exact equivalents; therefore, each system must
beusedindependentlyoftheother.Combiningvaluesfromthe
4. Ordering Information
two systems may result in nonconformance with the specifi-
4.1 The inquiry and order should include or indicate the
cation. Inch-pound units are applicable for material ordered to
following:
Specification A487 and SI units for material ordered to
4.1.1 A description of the casting by pattern number or
Specification A487M.
drawing (dimensional tolerances shall be included on the
casting drawing),
2. Referenced Documents
4.1.2 ASTM designation and year of issue,
2.1 ASTM Standards:
4.1.3 Grade and class of steel,
A370 TestMethodsandDefinitionsforMechanicalTesting
3 4.1.4 Options in the specification, and
of Steel Products
4.1.5 Thesupplementaryrequirementsdesiredincludingthe
A488/A488M Practice for Steel Castings,Welding, Quali-
4 standard of acceptance.
fications of Procedures and Personnel
A703/A703M Specification for Steel Castings, General
5. Heat Treatment
Requirements, for Pressure-Containing Parts
5 5.1 All castings shall receive a heat treatment indicated in
E165 Test Method for Liquid Penetrant Examination
Table1.Preliminaryheattreatmentpriortofinalheattreatment
as well as multiple tempering is permitted.
5.2 Heat treatment shall be performed after the castings
This specification is under the jurisdiction ofASTM CommitteeA01 on Steel,
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee
have been allowed to cool below the transformation range.
A01.18 on Castings.
5.3 The furnace temperature for heat treating shall be
Current edition approved April 10, 2003. Published April 2003. Originally
effectively controlled by use of recording-type pyrometers.
approved in 1963. Last previous edition approved in 1998 as A 487/A 487M – 93
(1998).
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
cations SA-487 in Section II of that code. Available from American Society of Mechanical Engineers, Three Park Ave.,
Annual Book of ASTM Standards, Vol 01.03. New York, NY 10016.
4 7
Annual Book of ASTM Standards, Vol 01.02. Available from Manufacturer’s Standardization Society of the Valve and
Annual Book of ASTM Standards, Vol 03.03. Fittings Industry, 127 Park St., N.E. Vienna, VA 22180.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
A 487/A 487M – 93 (2003)
TABLE 1 Heat Treat Requirement
Austenitizing Tempering
Quenching Cool
A
Grade Class Temperature, Media Temperature,
Below °F [°C]
B
min, °F [°C] °F [°C]
1 A 1600 [870] A 450 [230] 1100 [595]
1 B 1600 [870] L 500 [260] 1100 [595]
1 C 1600 [870] A or L 500 [260] 1150 [620]
2 A 1600 [870] A 450 [230] 1100 [595]
2 B 1600 [870] L 500 [260] 1100 [595]
2 C 1600 [870] A or L 500 [260] 1150 [620]
4 A 1600 [870] A or L 500 [260] 1100 [595]
4 B 1600 [870] L 500 [260] 1100 [595]
4 C 1600 [870] A or L 500 [260] 1150 [620]
4 D 1600 [870] L 500 [260] 1150 [620]
4 E 1600 [870] L 500 [260] 1100 [595]
6 A 1550 [845] A 500 [260] 1100 [595]
6 B 1550 [845] L 500 [260] 1100 [595]
7 A 1650 [900] L 600 [315] 1100 [595]
8 A 1750 [955] A 500 [260] 1250 [675]
8 B 1750 [955] L 500 [260] 1250 [675]
8 C 1750 [955] L 500 [260] 1250 [675]
9 A 1600 [870] A or L 500 [260] 1100 [595]
9 B 1600 [870] L 500 [260] 1100 [595]
9 C 1600 [870] A or L 500 [260] 1150 [620]
9 D 1600 [870] L 500 [260] 1150 [620]
9 E 1600 [870] L 500 [260] 1100 [595]
10 A 1550 [845] A 500 [260] 1100 [595]
10 B 1550 [845] L 500 [260] 1100 [595]
11 A 1650 [900] A 600 [315] 1100 [595]
11 B 1650 [900] L 600 [315] 1100 [595]
12 A 1750 [955] A 600 [315] 1100 [595]
12 B 1750 [955] L 400 [205] 1100 [595]
13 A 1550 [845] A 500 [260] 1100 [595]
13 B 1550 [845] L 500 [260] 1100 [595]
14 A 1550 [845] L 500 [260] 1100 [595]
C
16 (J31200) A 1600 [870] A 600 [315] 1100 [595]
CA15 A 1750 [955] A or L 400 [205] 900 [480]
CA15 B 1750 [955] A or L 400 [205] 1100 [595]
DE
CA15 C 1750 [955] A or L 400 [205] 1150 [620]
DE
CA15 D 1750 [955] A or L 400 [205] 1150 [260]
CA15M A 1750 [955] A or L 400 [205] 1100 [595]
CA6NM A 1850 [1010] A or L 200 [95] 1050–1150 [565–620]
E,F
CA6NM B 1850 [1010] A or L 200 [95] 1225–1275 [665–690]
G
1050–1150 [565–620]
A
A = air, L = Liquid.
B
Minimum temperature unless range is specified.
C
Double austenitize.
D
Double temper with the final temper at a lower temperature than the intermediate temper.
E
Air cool to below 200°F [95°C] after first temper.
F
Intermediate.
G
Final.
6. Chemical Composition tance standards specified in the order. Visual Method SP-55 or
othervisualstandardsmaybeusedtodefineacceptablesurface
6.1 The steel shall conform to the requirements as to
discontinuities and finish. Unacceptable visual surface discon-
chemical composition prescribed in Table 2. Product analysis
tinuities shall be removed and their removal verified by visual
tolerance shall conform to the product analysis tolerance
examination of the resultant cavities.When methods involving
shown in SpecificationA703/A703M. Product analysis toler-
high temperatures are used in the removal and repair of
ances for stainless grades are not presently applicable pending
discontinuities, the casting shall be preheated to at least the
development of these limits.
minimum temperature in Table 4.
7. Tensile Requirements Tensile Requirements
8.2 The castings shall not be peened, plugged, or impreg-
nated to stop leaks.
7.1 Tensile properties of steel used for the castings shall
conform to the requirements prescribed in Table 3.
9. Repair By Welding
8. Quality
9.1 For castings, other than those intended for use under
8.1 Thesurfaceofthecastingshallbefreeofadheringsand,
ASME Boiler and Pressure Vessel Code, repairs shall be made
scale, cracks, and hot tears as determined by visual examina- using procedures and welders qualified under Practice A488/
tion. Other surface discontinuities shall meet the visual accep-
A488M.
A 487/A 487M – 93 (2003)
TABLE 2 Chemical Requirements (Maximum Percent Unless Range is Given)
Grade 1. 2. 4. 6. 7. 8. 9. 10. 11. 12.
AB A AB
ABC ABCDE ABC ABCDE AB AB
Manganese Nickel- Nickel-
Class ABC Manganese- Nickel- Chromium- Chromium- Nickel- Nickel-
Nickel- Chromium- Chromium-
Type Vanadium Molyb- Chromium- Molyb- Molyb- Chromium- Chromium-
Chromium- Molybdenum- Molybde-
denum Molybdenum denum denum Molybdenum Molybdenum
A
Molybdenum Vanadium num
Carbon 0.30 0.30 0.30 0.05–0.38 0.05–0.20 0.05–0.20 0.05–0.33 0.30 0.05–0.20 0.05–0.20
Manganese 1.00 1.00–1.40 1.00 1.30–1.70 0.60–1.00 0.50–0.90 0.60–1.00 0.60 to 1.00 0.50–0.80 0.40–0.70
Phosphorus 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.04 0.04
Sulfur 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045 0.045
Silicon 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.80 0.60 0.60
Nickel . . . . . . 0.40–0.80 0.40–0.80 0.70–1.00 . . . . . . 1.40–2.00 0.70–1.10 0.60–1.00
Chromium . . . . . . 0.40–0.80 0.40–0.80 0.40–0.80 2.00–2.75 0.75–1.10 0.55–0.90 0.50–0.80 0.50–0.90
Molybdenum . . . 0.10–0.30 0.15–0.30 0.30–0.40 0.40–0.60 0.90–1.10 0.15–0.30 0.20–0.40 0.45–0.65 0.90–1.20
Vanadium 0.04–0.12 . . . . . . . . . 0.03–0.10 . . . . . . . . . . . . . . .
Boron . . . . . . . . . . . . 0.002–0.006 . . . . . . . . . . . . . . .
Copper . . . . . . . . . . . . 0.15–0.50 . . . . . . . . . . . . . . .
Residual Elements:
Copper 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50 0.50
Nickel 0.50 0.50 . . .
...