1、 KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS 2003 6 30 KS B ISO 8981 1 ： , KS B ISO 898 1： 2003 B ISO 898 1： 2003 ( ) ( ) ( ) ( ) ： ： 2003 6 30 03 747 ： ： ( ) ( 02 509 7292 5) . 7 5 , . ICS 21.060.20 KS B ISO 1 ： , 898 1： 2003Mechanical properties of fasteners made of carbon steel and alloy steel Part
2、 1： Bolts, screws and studs 1999 3 ISO 898 1, Mechanical properties of fasteners made of carbon steel and alloy steel Part 1： Bolts, screws and studs . 1. 10 35 , . . A 0.2 % . . . , . , . M1.6 M39 , M81 M393 ISO 68 1 ISO ISO 261 ISO 262 / ISO 965 1 ISO 965 2 (ISO 8985 ). . 300 (10.9 250 ) 50 (prope
3、rty class) ( d 39 mm) . B ISO 898 1： 2003 2 2. , . . . KS B ISO 898 2 2 ： ISO 68 1 ISO general purpose screw threads Basic profile Part 1： Metric screw threads ISO 83 Steel Charpy impact test(U notch) ISO 261 ISO general purpose metric screw threads General plan ISO 262 ISO general purpose metric sc
4、rew threads Selected sizes for screws, bolts and nuts ISO 273 Fasteners Clearances holes for bolts and screws ISO 724 ISO general purpose metric screw threads Basic dimensions ISO 898 2 Mechanical properties of fasteners made of carbon steel and alloy steel Part 2： Nuts with specified proof load val
5、ues Coarse thread ISO 898 5 Mechanical properties of fasteners made of carbon steel and alloy steel Part 5： Set screws and similar threaded fasteners not under tensile stresses ISO 898 7 Mechanical properties of fasteners made of carbon steel and alloy steel Part 7： Torsional test and minimum torque
6、s for bolts and screws with nominal diameters 1 mm to 10 mm ISO 965 1 ISO general purpose metric screw threads Tolerances Part 1： Principles and basic data ISO 965 2 ISO general purpose metric screw threads Tolerances Part 2： Limits of sizes for general purpose external and internal screw threads Me
7、dium quality ISO 6157 1 Fasteners Surface discontinuities Part 1： Bolts, screws and studs for general requirements ISO 6157 3 Fasteners Surface discontinuities Part 3： Bolts, screws and studs for specific requirements ISO 6506： 1981, Metallic materials Hardness test Brinell test ISO 6507 1： 1997, Me
8、tallic materials Hardness test Vickers test Part 1： Test method ISO 6508 Metallic materials Hardness test Rockwell test(Scales A B C D E F G H K) ISO 6892 Metallic materials Tensile testing at ambient temperature 3. , 1 . Rm , Amin . 2 . 1/100 (5.1 3 ). ReL( 0.2 % Rp0.2) Rm,nom 10 ( ). 2 1/10 . ReL,
9、min( 0.2 % Rp0.2,min) Rm,min ( 3 ). 4. 2 , (steel) . B ISO 898 1： 2003 3 ISO . 5. 8. , 3 . 1 (1) d 16 mm . (2) 3 . . . . . AminReL(2) Rm, nom100 % 0.2 % Rp0.2(2) Rm, nom100 % (1)B ISO 898 1： 2003 4 2 ( ) %(m/m) C P S B(1) 3.6(2) 0.20 0.05 0.06 0.003 4.6(2) 0.55 0.05 0.06 0.003 4.8(2) 5.6 0.13 0.55 0
10、.05 0.06 0.003 5.8(2) 0.55 0.05 0.06 6.8(2) 8.8(2) (B, Mn Cr ) , 0.15(4) 0.40 0.035 0.035 0.003 425 0.25 0.55 0.035 0.035 9.8 (B, Mn Cr ) 0.15(4) 0.35 0.035 0.035 0.003 425 0.25 0.55 0.035 0.03510.9(5)(6) (B, Mn Cr ) 0.15(4) 0.35 0.035 0.035 0.003 340 10.9(6) 0.25 0.55 0.035 0.035 0.003 425 (B, Mn C
11、r ) 0.20(4) 0.55 0.035 0.035 (7) 0.20 0.55 0.035 0.035 12.9(6)(8)(9) (7) 0.28 0.50 0.035 0.035 0.003 380 (1) 0.005 % . (2) , , 0.34 %, 0.11 %, 0.35 % . (3) 20 mm 10.9 . (4) 0.25 % ( ), 8.8 0.6 %, 9.8, 10.9 10.9 0.7 % . (5) (9. ). 3 10.9 10.9 . . (6) 90 % “ (as hardened)” . (7) . 0.30 %, 0.30 %, 0.20
12、 %, 0.10 %. 2 , 3 4 2 , 3 4 70 % . (8) 12.9 . (9) . B ISO 898 1： 2003 5 3 , 3.6 4.6 4.8 5.6 5.8 6.8 8.8(1) 9.8(2) 10.9 12.9d 16(3)mm d 16(3) mm 5.1 Rm, nomN/mm2300 400 500 600 800 800 900 1 000 1 2005.2 Rm, min(4)(5) N/mm2330 400 420 500 520 600 800 830 900 1 040 1 2205.3 HV F 98 N 95 120 130 155 16
13、0 190 250 255 290 320 385 220(6) 250 320 335 360 380 4355.4 HB F 30 D2 90 114 124 147 152 181 238 242 276 304 366 209(6) 238 304 318 342 361 4145.5 , HR HRB 52 67 71 79 82 89 HRC 22 23 28 32 39 HRB 95.0(6) 99.5 HRC 32 34 37 39 445.6 HV 0.3 (7) 5.7 ReL(8) N/mm2 180 240 320 300 400 480 190 240 340 300
14、 420 480 5.8 0.2 % Rp0.2(9) N/mm2 640 640 720 900 1 080 640 660 720 940 1 1005.9 SpSp/ReL Sp/Rp0.20.94 0.94 0.91 0.93 0.90 0.92 0.91 0.91 0.90 0.88 0.88N/mm2180 225 310 280 380 440 580 600 650 830 9705.10 MBNm ISO 898 7 5.11 A 25 22 20 12 12 10 9 85.12 Z % 52 48 48 445.13 (5) ( ) 5.2 . 5.14 KU J 25
15、30 30 25 20 155.15 (head soundness) . 5.16 E H1H1H1 G mm 0.0155.17 20 HV 5.18 ISO 6157 1 ISO 6157 3 . (1) 8.8 d 16 mm (nut stripping) . ISO 898 2 . (2) d 16 mm . (3) (structural bolt) 12 mm . (4) l 2.5 d . l 3 mm l 2.5 d (1) . B ISO 898 1： 2003 7 5 A B ( .) A B 3.6, 4.6, 5.68.8, 9.8, 10.9, 12.93.6,
16、4.6, 4.8, 5.6, 5.8, 6.88.8, 9.8, 10.9,12.9I 5.2 Rm,min.8.1 8.2 (1) 5.3 5.4 5.5 (2) 8.4 (3) 8.4 (3) 5.6 II 5.7 ReL,min.(4) 8.1 5.8 0.2% Rp0.2(4) 8.1 5.9 Sp8.5 5.10 MB8.3 (5) III 5.11 Amin(4) 8.1 5.12 Zmin8.1 5.13 (6) 8.6 (1) IV 5.14 KU 8.7 (7) (8) 5.15 (9) 8.8 V 5.16 8.9 8.9 5.17 8.10 (10) 8.10 (10)
17、5.18 8.11 8.11 (1) . (2) l 16 mm 25 % ( 44 %). 4.8, 5.8 6.8 ( ) (8.2 ). B ISO 898 1： 2003 12 d： do： (do ) b： (b d) Lo： 5 do (5.65oS )： Lo 3 do： Lc： (Lo do) Lt： (Lc 2r b) Lu： (ISO 6892： 1998 ) So： Su： r： (r 4 mm) 1 8.2 , (8.1 ). . Rm As,nom . 232nom s,24 +=ddA d2： (ISO 724 ) d3： 613Hdd = d1： (ISO 724
18、 ) H： (ISO 68 1 ) , 6 9 . (1d) . , . 25 mm/ . (self aligning) . B ISO 898 1： 2003 13 8.3 ISO 898 7 . d 3 mm 3 mm d 10 mm . 8.4 , , . , . . , . HV 0.3 . HV 0.3 HV 0.3 . 30 . 30 . 8.8 12.9 , . . ( ). . 8.4.1 ISO 6507 1 . 8.4.2 ISO 6506 . 8.4.3 ISO 6508 . 8.5 2 . a) ( 2 ) b) 7 9 . 15 . (1d) . (1d) . 2
19、. , (spherical) . (tong) . , 12.5 m . 3 mm/ . (self aligning) . ( ) (elongation) . 3 % ( B ISO 898 1： 2003 14 12.5 m .). a ISO 273, (medium) dh( 10 ) 2 8.6 ( ) . 3 ISO 6892 . d . 10 11 . . , . . , . C r1 . r1 rmax 0.2 2minsmaxamaxddr= B ISO 898 1： 2003 15 r： da： ds： a ISO 273, (medium) dh( 10 ) b ：
20、45 HRC c 45 3 10 ： mm d dh(1) r1 d dh(1) r13 3.4 0.7 16 17.5 1.3 3.5 3.9 0.7 18 20 1.34 4.5 0.7 20 22 1.3 5 5.5 0.7 22 24 1.66 6.6 0.7 24 26 1.6 7 7.6 0.8 27 30 1.68 9 0.8 30 33 1.6 10 11 0.8 33 36 1.612 13.5 0.8 36 39 1.6 14 15.5 1.3 39 42 1.6 (1) . B ISO 898 1： 2003 16 11 d mm ls 2d ls 2d 3.6, 4.6
21、, 4.8, 5.6, 5.8, 8.8, 9.8, 10.9 6.8, 12.9 3.6, 4.6, 4.8, 5.6, 5.8, 8.8, 9.8, 10.9 6.8, 12.9 0 30 d 20 10 6 6 4 20 d 39 6 4 4 1.7d 1.7d 11 . 1.9d 10 6 . 8.7 ISO 83 . . . d 16 mm . 8.8 d 10 mm (head soundness) 4 . 90 8 10 . . 1. dh r2(r2 r1) 10 . 2. 2d . 4 (soundness) B ISO 898 1： 2003 17 12 3.6 4.6 5.6 4.8 5.8 6.8 8.8 9
