ASME SA240 pdf download SPECIFICATION FOR CHROMIUM AND CHROMIUM- NICKEL STAINLESS STEEL PLATE, SHEET, AND STRIP FOR PRESSURE VESSELS AND FOR GENERAL APPLICATIONS
1.1This specification covers chromium,chromium-nickel,and chromium-manganese-nickel stainless steelplate, sheet, and strip for pressure vessels and for generalapplications.
1.2The values stated in either inch-pound units or sIunits are to be regarded separately as standard.The valuesstated in each system are not exact equivalents; therefore,each system must be used independently of the other. Com-bining values from the two systems may result in noncon-formance with the specification.
1.3This specification is expressed in both inch-poundand SI units. However, unless the order specifies the appli-cable “M” specification designation (Sl units), the materialshall be furnished in inch-pound units.
2. Referenced Documents
2.1 ASTM Standards:
A370 Test Methods and Definitions for Mechanical Test-ing of Steel Products
A 480/A 480M Specification for General Requirements forFlat-Rolled Stainless and Heat-Resisting Steel Plate,Sheet,and Strip
A 923 Test Methods for Detecting Detrimental Intermetal-lic Phase in Wrought Duplex Austenitic/Ferritic Stain-less Steels
E 112 Test Methods for Determining Average Grain SizeE527 Practice for Numbering Metals and Alloys (UNS)2.2SAE Standard:
J1086 Practice for Numbering Metals and Alloys (UNS)
3. General Requirements
3.1 The following requirements for orders for material furnished under this specification shall conform to the applicable requirements ofthe current edition ofSpecification A 480/A 480M.
3.1.2 General requirements for delivery,
3.1.3 Ordering information,
3.1.5 Special tests,
3.1.6 Heat treatment,
3.1.7 Dimensions and permissible variations,
3.1.8 Workmanship, finish and appearance,
3.1.9 Number of tests/test methods,
3.1.10 Specimen preparation,
3.1.13 Rejection and rehearing,
3.1.14 Material test report,
3.1.15 Certification, and
3.1.16 Packaging, marking, and loading.
4. Chemical Composition
4.1 The steel shall conform to the requirements as to chemical composition specified in Table 1, and shall conform to applicable requirements specified in Specification A 480/A 480M.
5. Mechanical Properties
5.1 The material shall conform to the mechanical prop- erties specified in Table 2.
5.2 When specified by the purchaser, Charpy impact tests shall be performed in accordance with Supplementary Requirement S1.
6. Materials for High-Temperature Service
6.1 The austenitic HTypes shall conform to an average grain size of ASTM No. 7 or coarser as measured by Test 366 Methods E 112.
6.2 Supplementary Requirement S2 shall be invoked when non-H grade austenitic stainless steels are ordered for ASME Code applications for service above 1000°F [540°C].
6.3 Grade S31060, unless otherwise specified in the purchase order, shall conform to an average grain size of ASTM No. 7 or coarser, as measured by Test Methods E 112.