ASTM A426/A426M-02

Standard Specification for Centrifugally Cast Ferritic Alloy Steel Pipe for High-Temperature Service

SCOPE
1.1 This specification covers centrifugally cast alloy steel pipe intended for use in high-temperature, high-pressure service.
1.2 Several grades of ferritic steels are covered. Their compositions are given in Table 1.
1.3 Supplementary Requirements S1 through S12 are provided. The supplementary requirements provide for additional tests of an optional nature and when desired shall be so stated in the order (Section 4).
1.4 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 each other. Combining values from the two systems may result in nonconformance with the specification.

General Information

• Status: Historical
• Publication Date: 09-Sep-2002
• 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 A426-92(2002) - Standard Specification for Centrifugally Cast Ferritic Alloy Steel Pipe for High-Temperature Service
• Effective Date: 10-Sep-2002
• Replaced By: ASTM A426/A426M-05 - Standard Specification for Centrifugally Cast Ferritic Alloy Steel Pipe for High-Temperature Service
• Effective Date: 15-Sep-2005
• Referred By: ASTM A999/A999M-23 - Standard Specification for General Requirements for Alloy and Stainless Steel Pipe
• Effective Date: 10-Sep-2002

Standards Content (Sample)

Designation: A 426/A 426M – 02
Standard Specification for
Centrifugally Cast Ferritic Alloy Steel Pipe for High-
1
Temperature Service
ThisstandardisissuedunderthefixeddesignationA 426/A 426M;thenumberimmediatelyfollowingthedesignationindicatestheyear
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.
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1. Scope* E 186 Reference Radiographs for Heavy-Walled (2 to 4 ⁄2-
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2 in. [51 to 114-mm]) Steel Castings
1.1 This specification covers centrifugally cast alloy steel
E 208 Test Method for Conducting Drop-Weight Test to
pipe intended for use in high-temperature, high-pressure ser-
Determine Nil-Ductility Transition Temperature of Ferritic
vice.
7
Steels
1.2 Several grades of ferritic steels are covered. Their
1
E 280 Reference Radiographs for Heavy-Walled (4 ⁄2 to
compositions are given in Table 1.
6
12-in. [114 to 305-mm]) Steel Castings
1.3 Supplementary Requirements S1 through S12 are
E 446 Reference Radiographs for Steel Castings Up to 2 in.
provided. The supplementary requirements provide for addi-
6
[51 mm] in Thickness
tional tests of an optional nature and when desired shall be so
6
E 709 Practice for Magnetic Particle Examination
stated in the order (Section 4).
2.2 ANSI Standard:
1.4 The values stated in either inch-pound units or SI units
8
B46.1 Surface Texture
are to be regarded separately as standard. Within the text, the
2.3 ASME Boiler and Pressure Vessel Code:
SI units are shown in brackets. The values stated in each
9
Section IX Welding Qualifications
system are not exact equivalents; therefore, each system must
be used independently of each other. Combining values from
3. Ordering Information
the two systems may result in nonconformance with the
3.1 Orders for material under this specification shall include
specification.
the following, as required, to describe the desired material
2. Referenced Documents adequately:
3.1.1 Quantity (feet, centimetres, or number of lengths),
2.1 ASTM Standards:
3.1.2 Name of material (centrifugally cast pipe),
A 370 Test Methods and Definitions for MechanicalTesting
3 3.1.3 Specification number,
of Steel Products
3.1.4 Grade (Table 1),
A 530/A 530M Specification for General Requirements for
4 3.1.5 Size (outside or inside diameter and minimum wall
Specialized Carbon and Alloy Steel Pipe
thickness),
A 609/A 609M Practice for Castings, Carbon, Low-Alloy,
3.1.6 Length (specific or random) (Section on Permissible
and Martensitic Stainless Steel, Ultrasonic Examination
5
Variation in Length of Specification A 530/A 530M),
Thereof
3.1.7 End finish (Section on Ends of Specification A 530/
E44 Definitions of Terms Relating to Heat Treatment of
5
A 530M),
Metals
6 3.1.8 Optional Requirements S1 through S12 and Section
E94 Guide for Radiographic Examination
6
14.1,
E 165 Test Method for Liquid Penetrant Examination
3.1.9 Test report required (Section on Certification of Speci-
fication A 530/A 530M),
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, 3.1.10 Servicetemperatureifover1000°F[540°C](Note1),
Stainless Steel, and RelatedAlloys and is the direct responsibility of Subcommittee
and
A01.18 on Castings.
Current edition approved September 10, 2002. Published October 2002. Origi-
nally published A 426 – 58 T. Last previous edition A 426 – 92 (2002).
2
For ASME Boiler and Pressure Vessel Code applications see related Specifi-
7
cation SA-426 in Section II of that Code. Annual Book of ASTM Standards, Vol 03.01.
3 8
Annual Book of ASTM Standards, Vol 01.03. Available from American National Standards Institute, 25 W. 43rd St., 4th
4
Annual Book of ASTM Standards, Vol 01.01. Floor, New York, NY 10036.
5 9
Annual Book of ASTM Standards, Vol 01.02. Available from American Society of Mechanical Engineers (ASME), Three
6
Annual Book of ASTM Standards, Vol 03.03. Park Ave., New York, NY 10016–5990.
*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.
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A 426/A 426M – 02
TABLE 1 Chemical Requirements
Composition, %
Phos-
Grade Carbon Manganese Sulfur, max Silicon Chromium Molybdenum
phorus, max
CP1 0.25 max 0.30–0.80 0.040 0.045 0.10–0.50 . . . 0.44–0.65
CP2 0.10–0.20 0.30–0.61 0.040 0.045 0.10–0.50 0.50–0.81 0.44–0.65
CP5 0.20 max 0.30–0.70 0.040 0.045 0.75 max 4.00–6.50 0.45–0.65
CP5b 0.15 max 0.30–0.60 0.040 0.045 1.00–2.00 4.00–6.00 0.45–0.65
CP9 0.20 max 0.30–0.65 0.040 0.045 0.25–1.00 8.00–10.00 0.90–1.20
CP11 0.05–0.20 0.30–0.80 0.040 0.045 0.60 max 1.00–1.50 0.44–0.65
CP12 0.05–0.15 0.30–0.61 0.040 0.045 0.50 max 0.80–1.25 0.44–0.65
CP15 0.15 max 0.30–0.60 0.040 0.045 0.15–1.65 . . . 0.44–0.65
CP21 0.05–0.15 0.30–0.60 0.040 0.045 0.50 max 2.65–3.35 0.80–1.06
CP22 0.05–0.15 0.30–0.70 0.040 0.
...