KS B 0234-2009 Mechanical properties of steel nuts《钢制螺母机械性质》.pdf
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1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS B 0234 KS B 0234:2009 2009 12 30 http:/www.kats.go.krKS B 0234:2009 : ( ) ( ) () () ( ) : (http:/www.standard.go.kr) : :1975 11 7 :2009 12 30 2009-0983 : : ( 02-509-7274) (http:/www.kats.go.kr). 10 5 , . KS B 0234:2009 Mechanical properties of steel nuts
2、A B 1992 2 ISO 898 2, Mechanical properties of fasteners Part 2: Nuts with specified proof load values Coarse thread 1994 2 ISO 898 6, Mechanical properties of fasteners Part 6: Nuts with specified proof load values Fine pitch thread , . A B . 1 . 2 2.1 ( ) 04, 05 412 A( ) . 2.2 ( ) 04, 05 512 B( )
3、. 2.3 ( ) 4T 12T C( ) . KS B 0234:2009 2 A ( ) A.1 ( ) . . . 39 mm . ISO 68 1 ISO 262( ) 3 ISO . ISO 261( ) / . ISO 965 1 ISO 965 2 6H . . ISO 272 . 0.5d1) . . . (ISO 2320 ) (ISO 3506 ) 300 50 1 250 . 2 (overtapped) . 3 6H/6g ( A.1 ). 4 6H ( A.1 ). A.1 % 6H 7H 6G M2.5 100 95.5 M2.5 M7 100 95.5 97 M7
4、 M16 100 96 97.5 M16 M39 100 98 98.5 1) d ISO 272 . KS B 0234:2009 3 A.2 . . ( ) . KS B 0201, KS B 1001, KS B 0401, KS B 0235, KS B 0548, 2: KS B 0805, KS B 0811, KS B 0806, ISO 1: 2002, Standard reference temperature for geometrical product specification and verification ISO 68 1: 1998, ISO general
5、 purpose screw threads Basic profile Part 1: Metric screw threads ISO 261: 1998, ISO general purpose metric screw threads General plan ISO 262: 1998, ISO general purpose metric screw threads Selected sizes for screws, bolts and nuts ISO 272: 1982, Fasteners Hexagon products Widths across flats ISO 2
6、86 2: 1988, ISO system of limits and fits Part 2: Tables of standard tolerance grades and limit deviations for holes and shafts ISO 724: 1993, ISO metric screw threads Basic dimensions ISO 898 2: 1992, Mechanical properties of fasteners Part 2: Nuts with specified proof load valuesCoarse thread ISO
7、965 1: 1998, ISO general purpose metric screw threads Tolerances Part 1: Principles and basic data ISO 965 2: 1998, ISO general purpose metric screw threads Tolerances Part 2: Limits of sizes for general purpose bolt and nut threads Medium quality ISO 18265: 2003, Metallic materials Conversion of ha
8、rdness values ISO 6157 2: 1995, Fasteners Surface discontinuities Part 2: Nuts with threads M5 to M39 ISO 6506 1: 2005, Metallic materials Brinell hardness test Part 1: Test method ISO 6506 2: 2005, Metallic materials Brinell hardness test Part 2: Verification and calibration of testing machines ISO
9、 6506 3: 2005, Metallic materials Brinell hardness test Part 3: Calibration of reference blocks ISO 6506 4: 2005, Metallic materials Brinell hardness test Part 4: Table of hardness values ISO 6507 1: 2005, Metallic materials Vickers hardness test Part 1: Test method ISO 6508 1: 2005, Metallic materi
10、als Rockwell hardness test Part 1: Test method(scales A, B, C, D, E, F, G, H, K, N, T) ISO 6508 2: 2005, Metallic materials Rockwell hardness test Part 2: Verification and calibration of testing machines (scales A, B, C, D, E, F, G, H, K, N, T) ISO 6508 3: 2005, Metallic materials Rockwell hardness
11、test Part 3: Calibration of reference blocks (scales A, B, C, D, E, F, G, H, K, N, T) A.3 A.3.1 0.8d ( 0.6d ) 0.8d ( 0.6d ) ( A.2 ). KS B 0234:2009 4 (over-tightening) . . , . . ( , , ) . A.2 M5 M39 . , 10 % . A1 . A.2 0.8d 1 2 4 3.6, 4.6, 4.8 M16 M16 3.6, 4.6, 4.8 M16 5 5.6, 5.8 M39 M39 6 6.8 M39 M
12、39 8 8.8 M39 M39 M16 M39 9 9.8 M16 M16 10 10.9 M39 M39 12 12.9 M39 M16 M39 . / . A.3.2 0.5d 0.8d ( 0.4d 0.6d ) 0.5d 0.8d ( 0.4d 0.6d ) 2 ( A.3 ). (4 5) (mandrel) , / A.3.1 / . . A.3 . A.6 . A.7 . KS B 0234:2009 5 A.3 0.5d 0.8d N/mm2 N/mm204 400 380 05 500 500 A.4 A.4 . A.4 ( ) % C Mn P S 4a, 5a, 6a
13、0.50 0.060 0.150 8, 9 04a0.58 0.25 0.060 0.150 10b05b0.58 0.30 0.048 0.058 12b 0.58 0.45 0.048 0.058 a . , . S: 0.34 %, P: 0.11 %, Pb: 0.35 % b , . 05, 8(M16 1), 10 12 . A.5 A.8 , A.5 . A.5 04 05 4 5c Sp HV Sp HV Sp HV Sp HV N/mm2 N/mm2 N/mm2 N/mm2 M4 520 M4 M7 580 M7 M10 590 M10 M16 610 130M16 M393
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