ASTM B90 B90M-2007 Standard Specification for Magnesium-Alloy Sheet and Plate《镁合金薄板和中厚板的标准规范》.pdf

1、Designation: B 90/B 90M 07Standard Specification forMagnesium-Alloy Sheet and Plate1This standard is issued under the fixed designation B 90/B 90M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A number

2、 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. Scope1.1 This specification covers magnesium alloys in sheet andplat

3、e form designated as shown in Table 1.1.2 The values stated in either inch-pound or SI units are tobe regarded separately as standards. The SI units are shown inbrackets or in separate tables or columns. The values stated ineach system are not exact equivalents; therefore, each systemmust be used in

4、dependent of the other. Combining values fromthe two systems may result in nonconformance with thespecification.1.3 Unless the order specifies the “M” specification desig-nation, the material shall be furnished to the inch-pound units.1.4 This standard does not purport to address all of thesafety co

5、ncerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 The following documents of the issue in effect on dat

6、eof material purchase form a part of this specification to theextent referenced herein:2.2 ASTM Standards:2B 557 Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy ProductsB 557M Test Methods for Tension Testing Wrought andCast Aluminum- and Magnesium-Alloy Products Metri

7、cB 660 Practices for Packaging/Packing of Aluminum andMagnesium ProductsB 951 Practice for Codification of Unalloyed Magnesiumand Magnesium-Alloys, Cast and WroughtE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE35 Test Methods for Chemical Analysis

8、 of Magnesiumand Magnesium AlloysE55 Practice for Sampling Wrought Nonferrous Metals andAlloys for Determination of Chemical Composition2.3 Federal Standards:3Fed. Std. No. 123 Marking for Shipment (Civil Agencies)Fed. Std. No. 184 Identification Marking of Aluminum,Magnesium and Titanium2.4 Militar

9、y Standards:3MIL-STD-129 Marking for Shipment and StorageMIL-M-3171 Magnesium Alloy, Processes for Pretreat-ment and Prevention of Corrosion3. Terminology3.1 Definitions:3.1.1 platea rolled product rectangular in cross sectionand form, of thickness 0.250 in., or more, over 6.30 mm,either sheared or

10、sawed edges.3.1.2 sheeta rolled product rectangular in cross sectionand form, of thickness of 0.006 through 0.249 in. over 0.15through 6.30 mm with sheared, slit, or sawed edges.4. Ordering Information4.1 Orders for sheet and plate to this specification shallinclude the following information:4.1.1 Q

11、uantity in pieces, lbs, or kg4.1.2 Alloy (Section 5 and Table 1),4.1.3 Temper (Section 6 and Table 2),4.1.4 Thickness, width, and length,4.1.5 Surface treatment (see 8.2),4.1.6 Whether inspection is required at the manufacturersworks (see 13.1), and4.1.7 Whether certification of the material by the

12、vendor isrequired (Section 15).1This specification is under the jurisdiction of ASTM Committee B07 on LightMetals and Alloys and is the direct responsibility of Subcommittee B07.04 onMagnesium Alloy Cast and Wrought Products.Current edition approved June 1, 2007. Published July 2007. Originally appr

13、ovedin 1932. Last previous edition approved in 2005 as B 90/B 90M 98 (2005).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onth

14、e ASTM website.3Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5. Chemical Comp

15、osition5.1 The sheet and plate shall conform to the chemicalrequirements in Table 1.6. Tensile Properties6.1 The sheet and plate shall conform to the tensile require-ments in Table 2 Table 3 unless another agreement is madeTABLE 1 Chemical Composition LimitsANOTE 1Analysis shall regularly be made on

16、ly for the elements specifically mentioned in this table. If, however, the presence of other elements issuspected or indicated in amounts greater than the specified limits, further analysis shall be made to determine that these elements are not present in excessof the specified limits.NOTE 2The foll

17、owing applies to all specified limits in this table: For purposes of acceptance and rejection, an observed value or a calculated valueobtained from analysis should be rounded to the nearest unit in the last right-hand place of figures used in expressing the specified limit.Composition %AAl Mn R.E. Z

18、n Zr Ca Cu Fe Ni Si Each Total MgAZ31B 2.5-3.5 0.20-1.0 . . . 0.6-1.4 . . . 0.04 0.05 0.005 0.005 0.10 . . . 0.30 RemainderALimits are in weight percent maximum unless shown as a range.TABLE 2 Tensile RequirementsNOTEFor purposes of determining conformance with this specification, each value for ten

19、sile strength and yield strength shall be rounded to thenearest 0.1 ksi, and each value for elongation shall be rounded to the nearest 0.5 %, both in accordance with the rounding method of Practice E29.Alloy and Temper Specified Thickness, in. Tensile Strength, min, ksiYield Strength (0.2 %Offset),

20、min, ksiElongation in 2 in.,or 4 3 dia min, %AZ31B-O 0.0160.500 32.0A. 120.5012.000 32.0A. 102.0013.000 32.0A. 9AZ31B-H24 0.0160.249 39.0 29.0 60.2500.374 38.0 26.0 80.3750.500 37.0 24.0 80.5011.000 36.0 22.0 81.0012.000 34.0 20.0 82.0013.000 34.0 18.0 8AZ31B-H26 0.2500.374 39.0 27.0 60.3750.500 38.

21、0 26.0 60.5010.750 37.0 25.0 60.7511.000 37.0 23.0 61.0011.500 35.0 22.0 61.5012.000 35.0 21.0 6ATensile strength shall be 40.0 ksi max.TABLE 3 Tensile Requirements MetricAAlloy andTemperSpecifiedThickness, mmTensileStrength, MPaBYield Strength(0.2 % offset), MPaElongation, min %Over Through Min Max

22、 Min in 50 mmCin 5 3 dia(5.65 V A)AZ31B-O 0.40 12.50 221 275 . . . 12 . . .12.50 50.00 221 275 . . . . . . 950.00 80.00 221 275 . . . . . . 8AZ31B-H24 0.40 6.30 269 . . . 200 6 . . .6.30 10.00 262 . . . 179 8 . . .10.00 12.50 255 . . . 165 8 . . .12.50 25.00 248 . . . 152 . . . 725.00 50.00 234 . .

23、. 138 . . . 750.00 80.00 234 . . . 124 . . . 7AZ31B-H26 6.30 10.00 269 . . . 186 6 . . .10.00 12.50 262 . . . 179 6 . . .12.50 20.00 255 . . . 172 . . . 520.00 25.00 255 . . . 159 . . . 525.00 40.00 241 . . . 152 . . . 540.00 50.00 241 . . . 148 . . . 5AThe basis for establishment of mechanical prop

24、erty limits as shown in Appendix X1.BTodetermineconformancetothisspecificationeachvaluefortensilestrengthshallberoundedtothenearest1MPaandeachvalueforelongationtothenearest0.5 %,both in accordance with the rounding-off method of Practice E29.CElongation in 50 mm apply for thicknesses up through 12.5

25、0 mm and in 53 diameter (5.65 V A) for thicknesses over 12.50 mm where A is the cross-sectional areaof the specimen.B 90/B 90M 072between seller and purchaser. Properties for sizes and tempersnot shown in Table 2 Table 3 shall be as agreed upon by sellerand purchaser.7. Dimensional Tolerances7.1 Var

26、iations from the specified thickness shall not exceedthe amounts prescribed in Table 4 Table 5.7.2 Variations from the specified width shall not exceed theamounts prescribed in Table 6 Table 7, Table 8 Table 9, andTable 10 Table 11.7.3 Variations from the specified length shall not exceed theamounts

27、 prescribed in Table 12 Table 13.7.4 Squareness of sheet and plate shall conform to therequirements of Table 14 Table 15.7.5 Flatness of sheet and plate shall conform to the require-ments of Table 16 Table 17.7.6 Lateral bow of sheet and plate shall conform to therequirements of Table 18 Table 19 an

28、d Table 20 Table 21.8. Workmanship, Finish and Appearance8.1 All sheet and plate shall be commercially flat and free ofbuckles, shall be free of injurious surface defects, and have aworkmanlike finish.8.2 The sheet or plate shall be supplied in the finishspecified by the purchaser. One of the follow

29、ing finishes shouldbe specified:8.2.1 Mill finish,8.2.2 Mill finish and oiled,8.2.3 Chrome pickled, or8.2.4 Chrome pickled and oiled.9. Sampling for Chemical Analysis9.1 IngotAt least one sample shall be taken for eachgroup of ingots of the same alloy poured from the same sourceof molten metal and a

30、nalyzed to determine conformance toTable 1. Ingots not conforming shall be rejected.9.2 Finished ProductUnless compliance is established by9.1, sampling of the finished product shall be according toPractice E55. One sample shall be taken for 4000 lb 1815 kgor less of material comprising the lot, exc

31、ept that not more thanone analysis shall be required per piece.10. Sampling for Tensile Properties10.1 Number of TestsOne tension test specimen shall betaken from a sheet representing 1000 lb 455 kg sheet or froma plate representing each 2000 lb 905 kg of plate of the samealloy, temper, and thicknes

32、s in the shipment or such otherquantity as may be agreed upon by the seller and purchaser.10.2 Location of SpecimensTension test specimens shallbe taken parallel to the direction of rolling. The specimen shallbe taken midway between the two plate surfaces for plate inthicknesses of 0.500 through 1.5

33、00 in. 12.50 though 40 mmand midway between the center and the surface of plate over1.500 in. 40 mm in thickness.10.3 Types of SpecimensFor sheet and plate less than0.500 in. 12.50 mm thick, the standard sheet-type specimenshown inTable 6 or for plate 0.500 in. 12.5 mm or over thosein Table 8 of Tes

34、t Methods B 557 Test Methods B 557M shallbe used. If it is necessary to use specimens smaller than thestandard specimens, they shall have dimensions proportional tothose of Table 8 but not less than the following dimensions:TABLE 4 Thickness Tolerances for Magnesium Flat and Coiled Sheet and PlateAT

35、hickness tolerance, in. 6SpecifiedThickness, in.SpecifiedWidths up to18, inclOver 18through 36Over 36through 48Over 48through 54Over 54through 60Over 60through 66Over 66through 720.0160.028 0.0015 0.002 0.0025 0.0035 0.004 0.004 0.0040.0290.036 0.002 0.002 0.0025 0.004 0.005 0.005 0.0050.0370.045 0.

36、002 0.0025 0.003 0.004 0.005 0.005 0.0050.0460.068 0.0025 0.003 0.004 0.005 0.006 0.006 0.0060.0690.076 0.003 0.003 0.004 0.005 0.006 0.006 0.0060.0770.096 0.0035 0.0035 0.004 0.005 0.006 0.006 0.0060.0970.108 0.004 0.004 0.005 0.005 0.007 0.007 0.0070.1090.125 0.0045 0.0045 0.005 0.005 0.007 0.007

37、0.0070.1260.140 0.0045 0.0045 0.005 0.005 0.007 0.010 0.0120.1410.172 0.006 0.006 0.008 0.008 0.009 0.012 0.0140.1730.203 0.007 0.007 0.010 0.010 0.011 0.014 0.0160.2040.249 0.009 0.009 0.011 0.011 0.013 0.016 0.0180.2500.320 0.013 0.013 0.013 0.013 0.015 0.018 0.0200.3210.438 0.019 0.019 0.019 0.01

38、9 0.020 0.020 0.0230.4390.625 0.025 0.025 0.025 0.025 0.025 0.025 0.0250.6260.875 0.030 0.030 0.030 0.030 0.030 0.030 0.0300.8761.125 0.035 0.035 0.035 0.035 0.035 0.035 0.0351.1261.375 0.040 0.040 0.040 0.040 0.040 0.040 0.0401.3761.625 0.045 0.045 0.045 0.045 0.045 0.045 0.0451.6261.875 0.052 0.05

39、2 0.052 0.052 0.052 0.052 0.0521.8762.250 0.060 0.060 0.060 0.060 0.060 0.060 0.0602.2512.750 0.075 0.075 0.075 0.075 0.075 0.075 0.0752.7513.000 0.090 0.090 0.090 0.090 0.090 0.090 0.0903.0014.000 0.110 0.110 0.110 0.110 0.110 0.110 0.1104.0015.000 0.125 0.125 0.125 0.125 0.125 0.125 0.1255.0016.00

40、0 0.135 0.135 0.135 0.135 0.135 0.135 0.135AWhen a dimension tolerance is specified other than as an equal bilateral tolerance, the value of the standard tolerance is that applying to the mean of maximum andminimum dimensions permissible under the tolerance.B 90/B 90M 073reduced section,14-in. 41.25

41、-mm diameter by 1-in.20.00-mm gage length; grip ends,38-in. 9.5-mm diameter;total length, 238 in. 60.3 mm with shouldered ends, 3 in. 76.2mm with threaded ends, and 4 in. 101.6 mm if tested withplain cylindrical ends. If material less than34 in. 19.0 mm inwidth is tested in full section because the

42、specimens in Table 9cannot be used, the elongation shall not be determined.11. Methods of Chemical Analysis11.1 Any suitable method of chemical analysis may be used.In case of dispute, the analysis shall be made by methods givenTABLE 5 Thickness Tolerances for Magnesium Flat and Coiled Sheet and Pla

43、te MetricASpecified Thickness,mmOver ThroughThickness tolerance, mm6SpecifiedWidths upto 450,incl.Over450Through900Over900Through1200Over1200Through1350Over1350Through1500Over1500Through1650Over1650Through18500.400.70 0.04 0.05 0.06 0.09 0.10 0.10 0.100.700.90 0.05 0.05 0.06 0.10 0.12 0.12 0.120.901

44、.15 0.05 0.06 0.07 0.10 0.12 0.12 0.121.151.70 0.06 0.07 0.10 0.12 0.15 0.15 0.151.701.90 0.07 0.07 0.10 0.12 0.15 0.15 0.151.902.40 0.09 0.09 0.10 0.12 0.15 0.15 0.152.402.76 0.10 0.10 0.12 0.12 0.18 0.18 0.182.763.17 0.11 0.11 0.12 0.12 0.18 0.18 0.183.173.55 0.11 0.11 0.12 0.12 0.18 0.25 0.303.55

45、4.35 0.15 0.15 0.20 0.20 0.22 0.30 0.354.355.15 0.18 0.18 0.25 0.25 0.27 0.35 0.405.156.30 0.23 0.23 0.28 0.27 0.33 0.40 0.456.308.00 0.33 0.33 0.33 0.33 0.38 0.45 0.508.0011.10 0.48 0.48 0.48 0.48 0.50 0.50 0.5811.1015.75 0.63 0.63 0.63 0.63 0.63 0.63 0.6315.7522.20 0.75 0.75 0.75 0.75 0.75 0.75 0.

46、7522.2028.50 0.89 0.88 0.88 0.88 0.88 0.88 0.8828.5034.90 1.00 1.00 1.00 1.00 1.00 1.00 1.0034.9041.25 1.14 1.14 1.14 1.14 1.14 1.14 1.1441.2547.60 1.32 1.32 1.32 1.32 1.32 1.32 1.3247.6057.15 1.52 1.52 1.52 1.52 1.52 1.52 1.5257.1569.85 1.90 1.90 1.90 1.90 1.90 1.90 1.9069.8576.20 2.28 2.25 2.25 2.

47、25 2.25 2.25 2.2576.20100.00 2.79 2.75 2.75 2.75 2.75 2.75 2.75100.00125.00 3.15 3.15 3.15 3.15 3.15 3.15 3.15125.00150.00 3.40 3.40 3.40 3.40 3.40 3.40 3.40AWhen a dimension tolerance is specified other than as an equal bilateral tolerance, the value of the standard tolerance is that applying to th

48、e mean of maximum andminimum dimensions permissible under the tolerance.TABLE 6 Width TolerancesMagnesium Flat SheetASpecifiedThickness, in.Width tolerances, in. 6SpecifiedWidths upthrough 4Over 4through18Over 18through36Over 36through54Over 54through720.0160.064 1/32 1/16 3/32 1/8 5/320.0650.102 1/

49、16 1/16 3/32 1/8 5/320.1030.249 1/8 3/32 1/8 3/16 3/16A0.0160.099 sheared to above tolerances.0.1000.249 sawed or sheared to above tolerances.TABLE 7 Width Tolerances, Magnesium Flat Sheet MetricASpecifiedThickness, mmOver ThroughWidth tolerances, mm 6SpecifiedWidths upThrough100Over100Through450Over450Through900Over900Through1350Over1350Through18500.401.60 1.0 1.5 2.5 3 41.602.60 1.5 1.5 2.5 3 42.606.30 3.0 2.5 3.0 5 5AOver 0