ASTM A488 / A488M

Abstract

This practice covers the qualification of procedures, welders, and operators for the fabrication and repair of steel castings by electric arc welding. The materials are categorized as carbon steel, carbon and carbon-manganese steel, low alloy steel, ferritic stainless steel, martensitic stainless steel, low carbon austenitic stainless steel, unstabilized austenitic stainless steel, austenitic stainless steel, duplex austenitic-ferritic stainless steel, precipitation-hardened austenitic stainless steel, nickel base alloy, steel castings, austenitic manganese. The orientation of the welds with respect to the horizontal and vertical planes of reference is classified into four positions, namely, flat, horizontal, vertical, and overhead. Four types of test shall be conducted in the qualification procedures such as tension test, bend test, Charpy impact test and radiographic test. Guided bend test specimens shall be prepared by cutting the test plate or pipe to form specimens of approximately rectangular cross section. Guided bend test specimens are of three types depending on which surface -side bend, face bend, or root bend is on the convex (outer) side of the bent specimen. A welding procedure must be set up as a new procedure and must be requalified when any of the changes in essential variables, inclusive, are made. Changes other than those listed may be made without requalification, provided the procedure is revised to show these changes. All welders and operators welding castings under this practice shall pass the welder qualification test. The welder or operator successfully performing the procedure qualification test is automatically qualified for performance.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

1.1 This practice covers the qualification of procedures, welders, and operators for the fabrication and repair of steel castings by electric arc welding.

1.1.1 Qualifications of a procedure and either or both the operator or welder under Section IX of the ASME Boiler and Pressure Vessel Code shall automatically qualify the procedure and either or both the operator or welder under this practice. P-number designations in the ASME grouping of base metals for qualification may be different than the category numbers listed in Table 1. Refer to Appendix X1 for a comparison of ASTM category numbers with the corresponding ASME P-Number designations.

TABLE 1 Categories of Base Materials


Category Number	Material Description	ASTM Specification	Grades
1	Carbon steel (carbon less than 0.35 %, tensile strength less than or equal to 70 ksi [480 MPa]).	A27/A27M	all grades
		A216/A216M	WCA, WCB
		A352/A352M	LCB, LCA
		A356/A356M	1
		A732/A732M	1A, 2A
		A757/A757M	A1Q
		A958	SC 1020, SC 1025, SC 1030, CLASSES 65/35, 70/36

2	Carbon steel (tensile strength greater than 70 ksi [480 MPa]). Carbon-manganese steel (tensile strength equal to or greater than 70 ksi but less than 90 ksi [620 MPa]).	A148/A148M	80-40
		A216/A216M	WCC
		A352/A352M	LCC
		A732/A732M	2Q, 3A
		A757/A757M	A2Q
		A958	SC 1030, SC 1040, SC 1045, CLASSES 80/40, 80/50

3	Carbon and carbon-manganese steel (tensile strength equal to or greater than 90 ksi [620 MPa]).	A732/A732M	3Q, 4A, 4Q, 5N
		A958	SC 1045, CLASSES 90/60, 105/85, 115/95

4	Low-alloy steel (annealed, normalized, or normalized and tempered. Tensile strength less than 85 ksi [585 MPa]).	A148/A148M	80-50
		A217/A217M	WC1, WC4, WC5, WC6, WC9
		A352/A352M	LC1, LC2, LC3, LC4
		A356/A356M	2, 5, 6, 8
		A389/A389M	C23, C24
		A487/A487M	A27/A27M Specification for Steel Castings, Carbon, for General Application A128/A128M Specification for Steel Castings, Austenitic Manganese A148/A148M Specification for Steel Castings, High Strength, for Structural Purposes A216/A216M Specification for Steel Castings, Carbon, Suitable for Fusion Welding, for High-Temperature Service A217/A217M Specification for Steel Castings, Martensitic Stainless and Alloy, for Pressure-Containing Parts, Suitable for High-Temperature Service A297/A297M Specification for Steel Castings, Iron-Chromium and Iron-Chromium-Nickel, Heat Resistant, for General Application A351/A351M Specification for Castings, Austenitic, for Pressure-Containing Parts A352/A352M Specification for Steel Castings, Ferritic and Martensitic, for Pressure-Containing Parts, Suitable for Low-Temperature Service A356/A356M Specification for Steel Castings, Carbon, Low Alloy, and Stainless Steel, Heavy-Walled for Steam Turbines A370 Test Methods and Definitions for Mechanical Testing of Steel Products A389/A389M Specification for Steel Castings, Alloy, Specially Heat-Treated, for Pressure-Containing Parts, Suitable for High-Temperature Service A447/A447M Specification for Steel Castings, Chromium-Nickel-Iron Alloy (25-12 Class), for High-Temperature Service A487/A487M Specification for Steel Castings Suitable for Pressure Service A494/A494M Specification for Castings, Nickel and Nickel Alloy A732/A732M Specification for Castings, Investment, Carbon and Low Alloy Steel for General Application, and Cobalt Alloy for High Strength at Elevated Temperatures A743/A743M Specification for Castings, Iron-Chromium, Iron-Chromium-Nickel, Corrosion Resistant, for General Application A744/A744M Specification for Castings, Iron-Chromium-Nickel, Corrosion Resistant, for Severe Service A747/A747M Specification for Steel Castings, Stainless, Precipitation Hardening A757/A757M Specification for Steel Castings, Ferritic and Martensitic, for Pressure-Containing and Other Applications, for Low-Temperature Service A872/A872M Specification for Centrifugally Cast Ferritic/Austenitic Stainless Steel Pipe for Corrosive Environments A890/A890M Specification for Castings, Iron-Chromium-Nickel-Molybdenum Corrosion-Resistant, Duplex (Austenitic/Ferritic) for General Application A958 Specification for Steel Castings, Carbon and Alloy, with Tensile Requirements, Chemical Requirements Similar to Standard Wrought Grades A990 Specification for Castings, Iron-Nickel-Chromium and Nickel Alloys, Specially Controlled for Pressure Retaining Parts for Corrosive Service A995/A995M Specification for Castings, Austenitic-Ferritic (Duplex) Stainless Steel, for Pressure-Containing Parts American Welding Society ANSI/AWS 3.0 Definitions for Welding and Cutting American Society of Mechanical Engineers ASME Boiler and Pressure Vessel Code, Section IX Keywords qualifications; steel castings; welding; ICS Code ICS Number Code 25.160.10 (Welding processes); 25.160.01 (Welding, brazing and soldering in general) DOI: 10.1520/A0488_A0488M-12 ASTM International is a member of CrossRef. ASTM A488 / A488M (Steel Standards) Citing ASTM Standards [Back to Top]

ASTM A488 / A488M - 12

ASTM A488 / A488M - 12 Standard Practice for Steel Castings, Welding, Qualifications of Procedures and Personnel

ASTM A488 / A488M (Steel Standards)