Standard Specification for Nickel-Iron-Chromium Alloy Plate, Sheet, and Strip 1

Transcription

1 Designation: B Standard Specification for Nickel-Iron-Chromium Alloy Plate, Sheet, and Strip This standard is issued under the fixed designation B 40; the number immediately following the designation indicates the year 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 edirial change since the last revision or reapproval.. Scope. This specification 2 covers UNS N0820, UNS N0880, UNS N08800, UNS N0880, and UNS N088* in the form of rolled plate, sheet, and strip. Alloy UNS N08800 is normally employed in service temperatures up and including 00 F ( C). Alloys UNS N0820, UNS N0880, UNS N088, and UNS N0880 are normally employed in service temperatures above 00 F ( C) where resistance creep and rupture is required, and they are annealed develop controlled grain size for optimum properties in this temperature range..2 The values stated in inch-pound units are be regarded as the standard. The values given in parentheses are for information only.. This standard does not purport address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, establish appropriate safety and health practices, and determine the applicability of regulary limitations prior use. 2. Referenced Documents 2. ASTM Standards: B 408 Specification for Nickel-Iron-Chromium Alloy Rod and Bar B 06 Specification for General Requirements for Flat- Rolled Nickel and Nickel Alloys Plate, Sheet, and Strip This specification is under the jurisdiction of ASTM Committee B02 on Nonferrous Metals and Alloys and is the direct responsibility of Subcommittee B02.07 on Refined Nickel and Cobalt and Their Alloys. Current edition approved Dec., Published January Originally approved in 7. Last previous edition approved in 200 as B For ASME Boiler and Pressure Vessel Code applications see related Specification SB 40 in Section II of that Code. * New designations established in accordance with Practice E 27 and SAE J086, Practice for Numbering Metals and Alloys (UNS). For referenced ASTM standards, visit the ASTM website, or contact ASTM Cusmer Service at service@astm.org. For Annual Book of ASTM Standards volume information, refer the standard s Document Summary page on the ASTM website.. Terminology. Definitions of Terms Specific This Standard: The terms given in Table shall apply. 4. General Requirements 4. Material furnished under this specification shall conform the applicable requirements of Specification B 06 unless otherwise provided herein.. Ordering Information. It is the responsibility of the purchaser specify all requirements that are necessary for the safe and satisfacry performance of material ordered under this specification. Examples of such requirements include but are not limited the following:.. Alloy (Table 2),..2 Condition (Temper) Table and Table 4, Appendix X, and Specification B Finish Appendix X and Specification B Dimensions Thickness, width, and length... Optional Requirements:... Sheet and Strip Whether be furnished in coil, in cut straight lengths, or in random straight lengths....2 Strip Whether be furnished with commercial slit edge, square edge, or round edge.... Plate Whether be furnished specially flattened (see.7.2); also how plate is be cut (Specification B 06, Table A.4 and Table A Fabrication Details Not mandary but helpful the manufacturer:..6. Welding or Brazing Process be employed Plate Whether material is be hot-formed...7 Certification State if certification or a report of test results is required (Specification B 06)...8 Samples for Product (Check) Analysis Whether samples for product (check) analysis should be furnished (see 7.2)... Purchaser Inspection If purchaser wishes witness tests or inspection of material at place of manufacture, the purchase order must so state indicating which tests or inspections are be witnessed (Specification B 06). Copyright ASTM International, 00 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 428-2, United States.

2 B40 06 TABLE Product Description Product Thickness, in. (mm) Width, in. (mm) Hot-rolled plate A and over (B 06, Table A. and Table A.2) (B 06, Table A.4) B Hot-rolled sheet A ( ), incl (B 06, Table A.) (B 06, Table A.6) Cold-rolled sheet C ( ), incl (B 06, Table A.) (B 06, Table A.6) Cold-rolled strip C (0. 6.4), incl (B 06, Table A.) (B 06, Table A.6) A Material in. ( mm), incl, in thickness may be furnished as sheet or plate provided the material meets the specification requirements for the condition ordered. B Hot-rolled plate, in widths 0 in. (24 mm) and under, may be furnished as hot-finished rectangles with sheared or cut edges in accordance with Specification B 408, provided the mechanical property requirements of this specification are met. C Material under 48 in. (2 mm) in width may be furnished as sheet or strip provided the material meets the specification requirements for the condition ordered. Element TABLE 2 Chemical Requirements Alloy N0820 Composition Limits, % Alloy N0880 Alloys N08800, N0880, and N088 Nickel.0 min 40.0 min 0.0 min.0 max 4.0 max.0 max Chromium 2.0 min 2. min.0 min 27.0 max 28. max 2.0 max Iron remainder A remainder. min A Manganese, max... Carbon 0.02 min 0.06 min B 0.0 max 0.4 max... Copper, max Silicon, max.0.0 min max... Sulfur, max Aluminum C 0.40 max 0.0 min 0. min max 0.60 max Titanium C 0.20 max 0. min 0. min max 0.60 max Columbium 0.4 min max Molybdenum 2.0 max.0 min max... Niobium min max... Tantalum min max... Phosphorus max Tungsten 2.0 max Cobalt, max Nitrogen 0. min max Boron 0.00 max A Iron shall be determined arithmetically by difference. B Alloy UNS N08800: 0.0 max. Alloy UNS N0880: Alloy UNS N088: C Alloy UNS N088: Al + Ti, Materials and Manufacture 6. Heat Treatment The final heat treatment of UNS N0820 shall be 20 F (77 C) minimum, UNS N0880, 200 F (2 C) minimum, UNS N088 and UNS N0880, 200 F (4 C) minimum. 7. Chemical Composition 7. The material shall conform the composition limits specified in Table If a product (check) analysis is performed by the purchaser, the material shall conform the product (check) analysis variations in Specification B Mechanical and Other Requirements 8. Mechanical Properties The material shall conform the mechanical properties specified in Table. 8.2 Grain Size Annealed Alloys UNS N0820, UNS N0880, UNS N088, and UNS N0880 shall conform an average grain size of ASTM No. or coarser. 8. Deep-Drawing and Spinning Quality Sheet and Strip (Alloy UNS N08800) Shall conform the grain size and hardness requirements as provided in Table The mechanical properties of Table do not apply deep drawing and spinning quality sheet and strip. 8.4 Annealing Temperature Alloy UNS N0820 shall be annealed at 20 F (77 C) minimum, and UNS N0880, 200 F (4 C) minimum.. Dimensions and Permissible Variations. Thickness and Weight:.. Plate For plate up 2 in. (0.8 mm), incl, in thickness, the permissible variation under the specified thickness and permissible excess in overweight shall not exceed the amounts prescribed in Table A. in Specification B For use with Table A. in Specification B 06, plate shall be assumed weigh lb/in. (7.44 g/cm )...2 Plate For plate over 2 in. (0.8 mm) in thickness, the permissible variations over the specified thickness shall not exceed the amounts prescribed in Table A.2 in Specification B Sheet and Strip The permissible variations in thickness of sheet and strip shall be as prescribed in Table A. in Specification B 06. The thickness of sheet and strip shall be measured with the micrometer spindle in. (. mm) or more from either edge for material in. (2.4 mm) or over in width and at any place on strip under in. in width..2 Width or Diameter:.2. Plate The permissible variations in width of rectangular plates and diameter of circular plates shall be as prescribed in Table A.4 and Table A. in Specification B Sheet and Strip The permissible variations in width for sheet and strip shall be as prescribed in Table A.6 in Specification B 06.. Length:.. Sheet and strip of all sizes may be ordered cut lengths, in which case a variation of in. (.8 mm) over the specified length shall be permitted. 2

3 Alloy Condition B40 06 TABLE Mechanical Properties for Plate, Sheet, and Strip (All thicknesses and sizes unless otherwise indicated) Tensile Strength, min, psi (MPa) Yield Strength A (0.2 % offset), min, psi (MPa) Elongation in 2 in. or 0 mm (or 4D), min, % Hot-Rolled Plate UNS N0820 Annealed (62) (276) 0 UNS N08800 Annealed (20) (20) 0 UNS N08800 As-rolled BC (0) 000 (240) 2 UNS N0880 Annealed (40) (70) 0 UNS N088 Annealed (40) (70) 0 UNS N0880 Annealed (20) (20) Hot-Rolled Sheet UNS N0820 Annealed (62) (276) 0 UNS N08800 Annealed (20) (20) 0 UNS N0880 D Annealed (40) (70) 0 UNS N088 D Annealed (40) (70) 0 UNS N0880 Annealed (20) (20) Cold-Rolled Sheet UNS N0820 Annealed (62) (276) 0 UNS N08800 Annealed (20) (20) 0 UNS N0880 D Annealed (40) (70) 0 UNS N088 D Annealed (40) (70) 0 UNS N0880 Annealed (20) (20) Cold-Rolled Strip UNS N0820 Annealed (62) (276) 0 UNS N08800 Annealed (20) (20) 0 E UNS N0880 D Annealed (40) (70) 0 UNS N088 D Annealed (40) (70) 0 UNS N0880 Annealed (20) (20) A Yield strength requirements do not apply material under in. (0. mm) in thickness. B As-rolled plate may be given a stress-relieving heat treatment subsequent final rolling. C As-rolled plate specified suitable for hot forming shall be furnished from heats of known good hot-malleability characteristics (see X...2). The purchaser must specify Alloy UNS N08800 or UNS N0880. There are no applicable tensile or hardness requirements for such material. D Available only in thicknesses 0. in. (2.2 mm) and over. E Not applicable for thickness under 0.00 in. (0.2 mm). TABLE 4 Grain Size and Hardness for Alloy UNS N08800 Cold-Rolled, Deep-Drawing, and Spinning Quality Sheet and Strip Thickness Calculated Diameter of Average Grain Section, max, in. (mm) Corresponding ASTM Micro- Grain Size No. Rockwell B AB Hardness, max Sheet (6 in. (.42 m) Wide and Under) 0.00 (.) and less (0.07) Over (. 6.4), incl (0.0). 86 Strip (2 in. (0 mm) Wide and Under) C 0.00 D 0.00 (0. 0.2), incl (0.022) 8 E 88 E Over (0.2.2), incl (0.07) A For Rockwell or equivalent hardness conversions see Hardness Conversion Tables E40. B Caution should be observed in using the Rockwell test on thin material, as the results may be affected by specimen thickness. For thicknesses under 0.00 in. (. mm), the use of the Rockwell superficial or the Vickers hardness test is suggested. C Sheet requirements (above) apply strip thicknesses over 0.2 in. (.2 mm), and for all thicknesses of strip over 2 in. (0 mm) in width. D For ductility evaluations for strip under 0.00 in. (0. mm) in thickness, the spring-back test such as described in Test Method F, is often used and the manufacturer should be consulted. E Accurate grain size and hardness determinations are difficult make on strip under 0.00 in. (0. mm) in thickness and are not recommended...2 Permissible variations in length of rectangular plate shall be as prescribed in Table A.7 in Specification B Straightness:.4. The edgewise curvature (depth of chord) of flat sheet, strip, and plate shall not exceed 0.0 in. multiplied by the length in feet (0.04 mm multiplied by the length in centimetres)..4.2 Straightness for coiled strip material is subject agreement between the manufacturer and the purchaser.. Edges:.. When finished edges of strip are specified in the contract or order, the following descriptions shall apply:... Square-edge strip shall be supplied with finished edges, with sharp, square corners, without bevel or rounding....2 Round-edge strip shall be supplied with finished edges, semicircular in form, the diameter of the circle forming the edge being equal the strip thickness.... When no description of any required form of strip edge is given, it shall be undersod that edges such as those resulting from slitting or shearing will be acceptable....4 Sheet shall have sheared or slit edges.... Plate shall have sheared or cut (machined, abrasivecut, powder-cut, or inert arc-cut) edges, as specified..6 Squareness (Sheet):

4 TABLE Permissible Variations From Flatness of Rectangular, Circular, and Sketch Plates NOTE Permissible variations apply plates up 2 ft (66 cm) in length, or any 2 ft (66 cm) of longer plates. NOTE 2 If the longer dimension is under 6 in. (4 mm), the permissible variation is not greater than in. (6. mm). NOTE The shorter dimension specified is considered the width, and the permissible variation in flatness across the width does not exceed the tabular amount of that dimension. NOTE 4 The maximum deviation from a flat surface does not cusmarily exceed the tabular lerance for the longer dimension specified. Specified Thickness To 48 (220), (220 20), Permissible Variations from a Flat Surface for Thickness and Widths Given, in. (mm) (20 80), B (80 20), 84 6 ( ),, , Inches 6 08 ( ), ( ), (00 660), 44 (660) and Over,, 7, 2, 24,incl Millimetres , , , , , , , incl For sheets of all thicknesses, the angle between adjacent sides shall be ( in. in 24 in.) (. mm in 60 mm)..7 Flatness:.7. There shall be no flatness requirements for deepdrawing quality and spinning quality sheet and strip (see X..)..7.2 Standard flatness lerances for plate shall conform the requirements of Table. Specially-flattened plate when so specified, shall have permissible variations in flatness as agreed upon between the manufacturer and the purchaser. 0. Test Methods 0. The chemical composition, mechanical, and other properties of the material as enumerated in this specification shall be determined, in case of disagreement, in accordance with the methods in Specification B The measurement of average grain size may be carried out by the planimetric method, the comparison method, or the intercept method described in Specification B 06. In case of dispute, the referee method for determining average grain size shall be the planimetric method. 0. For purposes of determining compliance with the specified limits for requirements of the properties listed in Specification B 40, an observed value or a calculated value shall be rounded as indicated below, in accordance with the rounding methods in Specification B 06. Test Rounded Unit for Observed or Calculated Value Elongation nearest % Grain size: in. (0.060 mm) or nearest multiple of larger in. (0.00 mm) less than in. (0.060 mm) nearest multiple of in. (0.002 mm). Product Marking. Each bundle or shipping container shall be marked with the name of the material; condition (temper); this specification number; the size; gross, tare, and net weight; consignor and consignee address; contract or order number; or such other information as may be defined in the contract or order. 2. Keywords 2. plate; sheet; strip; UNS N0820; UNS N08800; UNS N0880; UNS N0880; UNS N088; UNS N0880 4

5 B40 06 APPENDIX (Nonmandary Information) X. CONDITIONS (TEMPERS) AND FINISHES X. This appendix lists the conditions and finishes in which plate, sheet, and strip are normally supplied. These are subject change and the manufacturer should be consulted for the latest information available. X.. Plate, Hot Rolled: X... Annealed Soft with an oxide surface, and suitable for heavy cold forming. Available with a descaled surface, when so specified. X...2 As-Rolled With an oxide surface. Available with a descaled surface, when so specified. Suitable for flat work, mild forming, or tube sheets. When intended for tube sheets, specify that plates are be specially flattened. When intended for hot forming, this should be indicated on the purchase order so that the manufacturer may select appropriate material. X..2 Plate, Cold Rolled: X..2. Annealed Soft with an oxide surface; available with a descaled surface when so specified. X.. Sheet, Hot-Rolled, Annealed, and Pickled Soft with a pickled matte finish. Properties similar X..4. but with broader thickness lerances. Not suggested for applications where the finish of a cold-rolled sheet is considered essential, or for deep drawing, or spinning. X..4 Sheet and Strip, Cold-Rolled: X..4. Annealed Soft with a descaled or bright annealed finish. X..4.2 Deep-Drawing or Spinning Quality Similar X..4., except furnished controlled hardness and grain size and lightly leveled. ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility. This standard is subject revision at any time by the responsible technical committee and must be reviewed every five years and if not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standards and should be addressed ASTM International Headquarters. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you should make your views known the ASTM Committee on Standards, at the address shown below. This standard is copyrighted by ASTM International, 00 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 428-2, United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the above address or at (phone), (fax), or service@astm.org ( ); or through the ASTM website (