Specifying material for plates and bars as shown in

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Specifying Material for Plates and Bars As shown in Table 3, the preferred material specification for structural plates is ASTM A36. The availability and cost effectiveness of structural plates in grades other than ASTM A36 should be confirmed prior to their specifi- cation. Note also that the availability of grades other than ASTM A36 varies through the range of thickness. Structural plates with higher yield and tensile strengths or atmospheric corrosion resistance (weathering) charac- teristics can be obtained by specifying ASTM A572, ASTM A529, ASTM A514, ASTM A852, ASTM A588 or ASTM A242. Table 3 shows the appropriate grades of material to specify for each of these materials. The pre- ceding comments for structural plates apply equally to structural bars, except that neither ASTM A514 nor ASTM A852 are applicable.
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MATERIALS PAGE 8 Shape Group 1 Group 2 Group 3 Group 4 b Group 5 b W44x -- -- 230 to 290 335 -- W40x -- 149 to 264 277 to 327 331 to 593 -- W36x -- 135 to 210 230 to 300 328 to 798 -- W33x -- 118 to 152 169 to 291 318 to 387 -- W30x -- 90 to 211 235, 261 292 to 391 -- W27x -- 84 to 178 194 to 258 281 to 539 -- W24x 55, 62 68 to 162 176 to 229 250 to 370 -- W21x 44 to 57 62 to 147 166 to 201 -- -- W18x 35 to 71 76 to 143 158, 175 -- -- W16x 26 to 57 67 to 100 -- -- -- W14x 22 to 53 61 to 132 145 to 211 233 to 550 605 to 808 W12x 14 to 58 65 to 106 120 to 190 210 to 336 -- W10x 12 to 45 49 to 112 -- -- -- W8x 10 to 48 58, 67 -- -- -- W6x 8.5 to 25 -- -- -- -- W5x 16, 19 -- -- -- -- W-Shapes W4x 13 -- -- -- -- M-Shapes all -- -- -- -- S-Shapes to 35 lb/ft incl. over 35 lb/ft -- -- -- HP-Shapes -- to 102 lb/ft incl. over 102 lb/ft -- -- American Standard Channels (C) to 20.7 lb/ft incl. over 20.7 lb/ft -- -- -- Miscellaneous Channels (MC) to 28.5 lb/ft incl. over 28.5 lb/ft -- -- -- Angles (L) to 1/2-in. incl. over 1/2 in. to 3/4 in. incl. over 3/4 in. -- -- Structural Tees (WT, MT, ST) Structural tees cut from W-, M-, and S-shapes fall into the same group as the structural shapes from which they are cut. -- indicates that tensile group number does not apply to that shape or shape range. a This table has been adjusted from the similar table in ASTM A6 to include all shapes listed in ASTM A6 Tables A2.1 through A2.8. b Special requirements may apply, per LRFD Specification Section A3.1c. Table 1 Tensile Group Classification of Structural Shapes a
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PAGE 9 MATERIALS Applicable Shape Series HSS Steel Type ASTM Designation F y Min. Yield Stress (ksi) F u Tensile Stress a (ksi) W M S HP C MC L Rect. Round Steel Pipe A36 36 58-80 b A53 Gr. B 35 60 42 58 Gr. B 46 58 46 62 A500 Gr. C 50 62 A501 36 58 Gr. 50 50 65-100 Carbon A529 c Gr. 55 55 70-100 Gr. 42 42 60 Gr. 50 50 65 d Gr. 55 55 70 Gr. 60 e 60 75 A572 Gr. 65 e 65 80 Gr. I & II 50 g 70 g A618 f Gr. III 50 65 50 50 h 60 h 60 60 75 65 65 80 A913 70 70 90 High-Strength Low-Alloy A992 50-65 i 65 i 42 j 63 j 46 k 67 k A242 50 l 70 l A588 50 70 Corrosion Resistant High- Strength Low- Alloy A847 f 50 70 = Preferred material specification. = Other applicable material specification, the availability of which should be confirmed prior to specification. = Material specification does not apply. a Minimum unless a range is shown. b For shapes over 426 lb/ft, only the minimum of 58 ksi applies.
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