\n| M48 x 5<\/td>\n | 73.1<\/td>\n | 75<\/td>\n | 82.60<\/td>\n | 29.58<\/td>\n | 30.42<\/td>\n | 29.58<\/td>\n | 30.42<\/td>\n | 1.6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nH\u00f3a h\u1ecdc<\/h3>\nTh\u00f4ng s\u1ed1 h\u00f3a h\u1ecdc c\u1ee7a ti\u00eau chu\u1ea9n DIN 933 c\u0169ng ch\u00ednh l\u00e0 th\u00f4ng s\u1ed1 h\u00f3a h\u1ecdc c\u1ee7a ti\u00eau chu\u1ea9n ISO 898-1.<\/p>\n \n\n\n| Property Class<\/th>\n | Material and heat treatment<\/th>\n | Chemical Composition Limit
\n(cast analysis, %)<\/th>\n | Tempering
\nTemp, \u00baC, min<\/th>\n<\/tr>\n | \n| C<\/th>\n | P, max<\/th>\n | S, max<\/th>\n | B, max<\/th>\n<\/tr>\n<\/thead>\n | \n\n| 4.6<\/td>\n | Carbon steel or carbon steel with additives<\/td>\n | 0.55 max<\/td>\n | 0.05<\/td>\n | 0.06<\/td>\n | Not specified<\/td>\n | \u2013<\/td>\n<\/tr>\n | \n| 4.8<\/td>\n<\/tr>\n | \n| 5.6<\/td>\n | 0.13 \u2013 0.55<\/td>\n<\/tr>\n | \n| 5.8<\/td>\n | 0.55 max<\/td>\n<\/tr>\n | \n| 6.8<\/td>\n | 0.15 \u2013 0.55<\/td>\n<\/tr>\n | \n| 8.8<\/td>\n | Carbon steel with additives (e.g. Boron or Mn or Cr)
\nquenched and tempered<\/td>\n | 0.15 \u2013 0.40<\/td>\n | 0.025<\/td>\n | 0.025<\/td>\n | 0.003<\/td>\n | 425<\/td>\n<\/tr>\n | \n| Carbon steel quenched and tempered<\/td>\n | 0.25 \u2013 0.55<\/td>\n<\/tr>\n | \n| Alloy steel quenched and tempered<\/td>\n | 0.20 \u2013 0.55<\/td>\n<\/tr>\n | \n| 9.8<\/td>\n | Carbon steel with additives (e.g. Boron or Mn or Cr)
\nquenched and tempered<\/td>\n | 0.15 \u2013 0.40<\/td>\n | 0.025<\/td>\n | 0.025<\/td>\n | 0.003<\/td>\n | 425<\/td>\n<\/tr>\n | \n| Carbon steel quenched and tempered<\/td>\n | 0.25 \u2013 0.55<\/td>\n<\/tr>\n | \n| Alloy steel quenched and tempered<\/td>\n | 0.20 \u2013 0.55<\/td>\n<\/tr>\n | \n| 10.9<\/td>\n | Carbon steel with additives (e.g. Boron or Mn or Cr)
\nquenched and tempered<\/td>\n | 0.20 \u2013 0.55<\/td>\n | 0.025<\/td>\n | 0.025<\/td>\n | 0.003<\/td>\n | 425<\/td>\n<\/tr>\n | \n| Carbon steel quenched and tempered<\/td>\n | 0.25 \u2013 0.55<\/td>\n<\/tr>\n | \n| Alloy steel quenched and tempered<\/td>\n | 0.20 \u2013 0.55<\/td>\n<\/tr>\n | \n| 12.9<\/td>\n | Alloy steel quenched and tempered<\/td>\n | 0.30 \u2013 0.50<\/td>\n | 0.025<\/td>\n | 0.025<\/td>\n | 0.003<\/td>\n | 425<\/td>\n<\/tr>\n | \n| 12.9<\/td>\n | Carbon steel with additives (e.g. Boron or Mn or Cr
\nor Molybdenum) quenched and tempered<\/td>\n | 0.28 \u2013 0.50<\/td>\n | 0.025<\/td>\n | 0.025<\/td>\n | 0.003<\/td>\n | 380<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nC\u01a1 t\u00ednh<\/h3>\nC\u0169ng nh\u01b0 th\u00f4ng s\u1ed1 h\u00f3a h\u1ecdc, th\u00f4ng s\u1ed1 c\u01a1 t\u00ednh c\u1ee7a ti\u00eau chu\u1ea9n DIN 931 c\u0169ng ch\u00ednh l\u00e0 th\u00f4ng s\u1ed1 c\u01a1 t\u00ednh c\u1ee7a ti\u00eau chu\u1ea9n ISO 898-1.<\/p>\n B\u1ea3ng 1: Mechanical Property<\/strong><\/h4>\n\n\n\n| Mechanical Property<\/th>\n | Property Class<\/th>\n<\/tr>\n | \n| 4.6<\/th>\n | 4.8<\/th>\n | 5.6<\/th>\n | 5.8<\/th>\n | 6.8<\/th>\n | 8.8<\/th>\n | 9.8
\nM16 and under<\/th>\n | 10.9<\/th>\n | 12.9\/
\n12.9<\/th>\n<\/tr>\n | \nM16 and
\nunder<\/th>\n | Over M16<\/th>\n<\/tr>\n<\/thead>\n | \n\n| Tensile strength, Rm, MPa<\/td>\n | nom.<\/td>\n | 400<\/td>\n | 500<\/td>\n | 600<\/td>\n | 800<\/td>\n | 900<\/td>\n | 1000<\/td>\n | 1200<\/td>\n<\/tr>\n | \n| min.<\/td>\n | 400<\/td>\n | 420<\/td>\n | 500<\/td>\n | 520<\/td>\n | 600<\/td>\n | 800<\/td>\n | 830<\/td>\n | 900<\/td>\n | 1040<\/td>\n | 1220<\/td>\n<\/tr>\n | \n| Lower yield strength, ReL, MPa<\/td>\n | nom.<\/td>\n | 240<\/td>\n | \u2014<\/td>\n | 300<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n<\/tr>\n | \n| min.<\/td>\n | 240<\/td>\n | \u2014<\/td>\n | 300<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n<\/tr>\n | \nStress at 0,2 % non-proportional
\nelongation, Rp0,2, MPa<\/td>\n | nom.<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n | 640<\/td>\n | 640<\/td>\n | 720<\/td>\n | 900<\/td>\n | 1080<\/td>\n<\/tr>\n | \n| min.<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n | 640<\/td>\n | 660<\/td>\n | 720<\/td>\n | 940<\/td>\n | 1100<\/td>\n<\/tr>\n | \nStress at 0,0048 d non-proportional
\nelongation for full-size fasteners, Rpf, MPa<\/td>\n | nom.<\/td>\n | \u2014<\/td>\n | 320<\/td>\n | \u2014<\/td>\n | 400<\/td>\n | 480<\/td>\n | \u2014<\/td>\n<\/tr>\n | \n| min.<\/td>\n | \u2014<\/td>\n | 340<\/td>\n | \u2014<\/td>\n | 420<\/td>\n | 480<\/td>\n | \u2014<\/td>\n<\/tr>\n | \n| Stress under proof load, Sp, MPa<\/td>\n | nom.<\/td>\n | 225<\/td>\n | 310<\/td>\n | 280<\/td>\n | 380<\/td>\n | 440<\/td>\n | 440<\/td>\n | 600<\/td>\n | 650<\/td>\n | 830<\/td>\n | 970<\/td>\n<\/tr>\n | \n| Proof strength ratio<\/td>\n | Sp,nom\/ReL min
\nSp,nom\/Rp0,2 min
\nSp,nom\/Rpf min<\/td>\n | 0,94<\/td>\n | 0,91<\/td>\n | 0,93<\/td>\n | 0,90<\/td>\n | 0,92<\/td>\n | 0,91<\/td>\n | 0,91<\/td>\n | 0,90<\/td>\n | 0,88<\/td>\n | 0,88<\/td>\n<\/tr>\n | \nPercentage elongation after fracture for
\nmachined test pieces, A, %<\/td>\n | min.<\/td>\n | 22<\/td>\n | \u2014<\/td>\n | 20<\/td>\n | \u2014<\/td>\n | \u2014<\/td>\n | 12<\/td>\n | 12<\/td>\n | 10<\/td>\n | 9<\/td>\n | 8<\/td>\n<\/tr>\n | \nPercentage reduction of area after fracture for
\nmachined test pieces, Z, %<\/td>\n | min.<\/td>\n | \u2014<\/td>\n | 52<\/td>\n | 48<\/td>\n | 48<\/td>\n | 44<\/td>\n<\/tr>\n | \nElongation after fracture for full-size
\nfasteners, Af<\/td>\n | min.<\/td>\n | \u2014<\/td>\n | 0,24<\/td>\n | \u2014<\/td>\n | 0,22<\/td>\n | 0,20<\/td>\n | \u2014<\/td>\n<\/tr>\n | \n| Head soundness<\/td>\n | No fracture<\/td>\n<\/tr>\n | \nVickers hardness,
\nHV F \u2265 98 N<\/td>\n | min.<\/td>\n | 120<\/td>\n | 130<\/td>\n | 155<\/td>\n | 160<\/td>\n | 190<\/td>\n | 250<\/td>\n | 255<\/td>\n | 290<\/td>\n | 320<\/td>\n | 385<\/td>\n<\/tr>\n | \n| max.<\/td>\n | 220<\/td>\n | 250<\/td>\n | 320<\/td>\n | 335<\/td>\n | 360<\/td>\n | 380<\/td>\n | 435<\/td>\n<\/tr>\n | \nBrinell hardness, HBW
\nF = 30 D2<\/td>\n | min.<\/td>\n | 114<\/td>\n | 124<\/td>\n | 147<\/td>\n | 152<\/td>\n | 181<\/td>\n | 238<\/td>\n | 242<\/td>\n | 276<\/td>\n | 304<\/td>\n | 304<\/td>\n<\/tr>\n | \n| max.<\/td>\n | 209<\/td>\n | 238<\/td>\n | 304<\/td>\n | 318<\/td>\n | 342<\/td>\n | 361<\/td>\n | 414<\/td>\n<\/tr>\n | \n| Rockwell hardness, HRB<\/td>\n | min.<\/td>\n | 67<\/td>\n | 71<\/td>\n | 79<\/td>\n | 82<\/td>\n | 89<\/td>\n | \u2014<\/td>\n<\/tr>\n | \n| max.<\/td>\n | 95,0<\/td>\n | 89<\/td>\n | \u2014<\/td>\n<\/tr>\n | \n| Rockwell hardness, HRC<\/td>\n | min.<\/td>\n | \u2014<\/td>\n | 22<\/td>\n | 23<\/td>\n | 23<\/td>\n | 32<\/td>\n | 39<\/td>\n<\/tr>\n | \n| max.<\/td>\n | \u2014<\/td>\n | 32<\/td>\n | 34<\/td>\n | 37<\/td>\n | 39<\/td>\n | 44<\/td>\n<\/tr>\n | \n| Surface hardness, HV 0,3<\/td>\n | max.<\/td>\n | \u2014<\/td>\n | (1)<\/td>\n | (1),(2)<\/td>\n | (1).(3)<\/td>\n<\/tr>\n | \nHeight of non-decarburized thread zone,
\nE, mm<\/td>\n | min.<\/td>\n | \u2014<\/td>\n | 1\/2 H1<\/td>\n | 2\/3 H1<\/td>\n | 3\/4 H1<\/td>\n<\/tr>\n | \nDepth of complete decarburization
\nin the thread, G, mm<\/td>\n | max.<\/td>\n | \u2014<\/td>\n | 0,015<\/td>\n<\/tr>\n | \n| Reduction of hardness after retempering, HV<\/td>\n | max.<\/td>\n | \u2014<\/td>\n | 20<\/td>\n<\/tr>\n | \n| Breaking torque, MB, N\u22c5m<\/td>\n | min.<\/td>\n | \u2014<\/td>\n | in accordance with ISO 898-7<\/td>\n<\/tr>\n | \n| Impact strength, KV, J<\/td>\n | min.<\/td>\n | \u2014<\/td>\n | 27<\/td>\n | \u2014<\/td>\n | 27<\/td>\n | (4)<\/td>\n<\/tr>\n | \n| Surface integrity in accordance with<\/td>\n | ISO 6157-1<\/td>\n | ISO 6157-3<\/td>\n<\/tr>\n | \n(1) Surface hardness shall not be more than 30 Vickers points above the measured core hardness of the fastener when determination of both surface hardness
\nand core hardness are carried out with HV 0,3.
\n(2) Any increase in hardness at the surface which indicates that the surface hardness exceeds 390 HV is not acceptable.
\n(3) Any increase in hardness at the surface which indicates that the surface hardness exceeds 435 HV is not acceptable.
\n(4) Value for KV is under investigation.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nB\u1ea3ng 2: Proof load<\/strong><\/h4>\n\n\n\nThread
\nd<\/th>\n | Nominal stress area
\nAs, nom, mm2<\/th>\n | Property class<\/th>\n<\/tr>\n | \n| 4.6<\/th>\n | 4.8<\/th>\n | 5.6<\/th>\n | 5.8<\/th>\n | 6.8<\/th>\n | 8.8<\/th>\n | 9.8<\/th>\n | 9.8<\/th>\n | 12.9\/12.9<\/th>\n<\/tr>\n | \n| Proof load, Fp (As,nom \u00d7 Sp,nom), N<\/th>\n<\/tr>\n<\/thead>\n | \n\n| M12<\/td>\n | 84,3<\/td>\n | 19 000<\/td>\n | 26 100<\/td>\n | 23 600<\/td>\n | 32 000<\/td>\n | 37 100<\/td>\n | 48 900<\/td>\n | 54 800<\/td>\n | 70 000<\/td>\n | 81 800<\/td>\n<\/tr>\n | \n| M16<\/td>\n | 157<\/td>\n | 35 300<\/td>\n | 48 700<\/td>\n | 44 000<\/td>\n | 59 700<\/td>\n | 69 100<\/td>\n | 91 000<\/td>\n | 102 000<\/td>\n | 130 000<\/td>\n | 152 000<\/td>\n<\/tr>\n | \n| M20<\/td>\n | 245<\/td>\n | 55 100<\/td>\n | 76 000<\/td>\n | 68 600<\/td>\n | 93 100<\/td>\n | 108 000<\/td>\n | 147 000<\/td>\n | \u2014<\/td>\n | 203 000<\/td>\n | 238 000<\/td>\n<\/tr>\n | \n| M22<\/td>\n | 303<\/td>\n | 68 200<\/td>\n | 93 900<\/td>\n | 84 800<\/td>\n | 115 000<\/td>\n | 133 000<\/td>\n | 182 000<\/td>\n | \u2014<\/td>\n | 252 000<\/td>\n | 294 000<\/td>\n<\/tr>\n | \n| M24<\/td>\n | 353<\/td>\n | 79 400<\/td>\n | 109 000<\/td>\n | 98 800<\/td>\n | 134 000<\/td>\n | 155 000<\/td>\n | 212 000<\/td>\n | \u2014<\/td>\n | 293 000<\/td>\n | 342 000<\/td>\n<\/tr>\n | \n| M27<\/td>\n | 459<\/td>\n | 103 000<\/td>\n | 142 000<\/td>\n | 128 000<\/td>\n | 174 000<\/td>\n | 202 000<\/td>\n | 275 000<\/td>\n | \u2014<\/td>\n | 381 000<\/td>\n | 445 000<\/td>\n<\/tr>\n | \n| M30<\/td>\n | 561<\/td>\n | 126 000<\/td>\n | 174 000<\/td>\n | 157 000<\/td>\n | 213 000<\/td>\n | 247 000<\/td>\n | 337 000<\/td>\n | \u2014<\/td>\n | 466 000<\/td>\n | 544 000<\/td>\n<\/tr>\n | \n| M33<\/td>\n | 694<\/td>\n | 156 000<\/td>\n | 215 000<\/td>\n | 194 000<\/td>\n | 264 000<\/td>\n | 305 000<\/td>\n | 416 000<\/td>\n | \u2014<\/td>\n | 576 000<\/td>\n | 673 000<\/td>\n<\/tr>\n | \n| M36<\/td>\n | 817<\/td>\n | 184 000<\/td>\n | 253 000<\/td>\n | 229 000<\/td>\n | 310 000<\/td>\n | 359 000<\/td>\n | 490 000<\/td>\n | \u2014<\/td>\n | 678 000<\/td>\n | 792 000<\/td>\n<\/tr>\n | \n| M39<\/td>\n | 976<\/td>\n | 220 000<\/td>\n | 303 000<\/td>\n | 273 000<\/td>\n | 371 000<\/td>\n | 429 000<\/td>\n | 586 000<\/td>\n | \u2014<\/td>\n | 810 000<\/td>\n | 947 000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nB\u1ea3ng 3: Tensile load<\/strong><\/h4>\n\n\n\nThread
\nd<\/th>\n | Nominal stress area
\nAs, nom, mm2<\/th>\n | Property class<\/th>\n<\/tr>\n | \n| 4.6<\/th>\n | 4.8<\/th>\n | 5.6<\/th>\n | 5.8<\/th>\n | 6.8<\/th>\n | 8.8<\/th>\n | 9.8<\/th>\n | 9.8<\/th>\n | 12.9\/12.9<\/th>\n<\/tr>\n | \n| Minimum ultimate tensile load, Fm min (As, nom \u00d7 Rm, min), N<\/th>\n<\/tr>\n<\/thead>\n | \n\n| M12<\/td>\n | 84,3<\/td>\n | 33 700<\/td>\n | 35 400<\/td>\n | 42 200<\/td>\n | 43 800<\/td>\n | 50 600<\/td>\n | 67 400<\/td>\n | 75 900<\/td>\n | 87 700<\/td>\n | 103 000<\/td>\n<\/tr>\n | \n| M16<\/td>\n | 157<\/td>\n | 62 800<\/td>\n | 65 900<\/td>\n | 78 500<\/td>\n | 81 600<\/td>\n | 94 000<\/td>\n | 125 000<\/td>\n | 141 000<\/td>\n | 163 000<\/td>\n | 192 000<\/td>\n<\/tr>\n | \n| M20<\/td>\n | 245<\/td>\n | 98 000<\/td>\n | 103 000<\/td>\n | 122 000<\/td>\n | 127 000<\/td>\n | 147 000<\/td>\n | 203 000<\/td>\n | \u2014<\/td>\n | 255 000<\/td>\n | 299 000<\/td>\n<\/tr>\n | \n| M22<\/td>\n | 303<\/td>\n | 121 000<\/td>\n | 127 000<\/td>\n | 152 000<\/td>\n | 158 000<\/td>\n | 182 000<\/td>\n | 252 000<\/td>\n | \u2014<\/td>\n | 315 000<\/td>\n | 370 000<\/td>\n<\/tr>\n | \n| M24<\/td>\n | 353<\/td>\n | 141 000<\/td>\n | 148 000<\/td>\n | 176 000<\/td>\n | 184 000<\/td>\n | 212 000<\/td>\n | 293 000<\/td>\n | \u2014<\/td>\n | 367 000<\/td>\n | 431 000<\/td>\n<\/tr>\n | \n| M27<\/td>\n | 459<\/td>\n | 184 000<\/td>\n | 193 000<\/td>\n | 230 000<\/td>\n | 239 000<\/td>\n | 275 000<\/td>\n | 381 000<\/td>\n | \u2014<\/td>\n | 477 000<\/td>\n | 560 000<\/td>\n<\/tr>\n | \n| M30<\/td>\n | 561<\/td>\n | 224 000<\/td>\n | 236 000<\/td>\n | 280 000<\/td>\n | 292 000<\/td>\n | 337 000<\/td>\n | 466 000<\/td>\n | \u2014<\/td>\n | 583 000<\/td>\n | 684 000<\/td>\n<\/tr>\n | \n| M33<\/td>\n | 694<\/td>\n | 278 000<\/td>\n | 292 000<\/td>\n | 347 000<\/td>\n | 361 000<\/td>\n | 416 000<\/td>\n | 576 000<\/td>\n | \u2014<\/td>\n | 722 000<\/td>\n | 847 000<\/td>\n<\/tr>\n | \n| M36<\/td>\n | 817<\/td>\n | 327 000<\/td>\n | 343 000<\/td>\n | 408 000<\/td>\n | 425 000<\/td>\n | 490 000<\/td>\n | 678 000<\/td>\n | \u2014<\/td>\n | 850 000<\/td>\n | 997 000<\/td>\n<\/tr>\n | \n| M39<\/td>\n | 976<\/td>\n | 390 000<\/td>\n | 410 000<\/td>\n | 488 000<\/td>\n | 508 000<\/td>\n | 586 000<\/td>\n | 810 000<\/td>\n | \u2014<\/td>\n | 1 020 000<\/td>\n | 1 200 000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\nL\u1edbp m\u1ea1<\/h2>\nM\u1ed9t s\u1ed1 m\u1ea1 ph\u1ed5 bi\u1ebfn cho bulong DIN 933:<\/p>\n \n- M\u1ea1 k\u1ebdm: M\u1ea1 k\u1ebdm l\u00e0 m\u1ed9t trong nh\u1eefng ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn v\u00e0 ti\u1ebft ki\u1ec7m chi ph\u00ed nh\u1ea5t. N\u00f3 ho\u1ea1t \u0111\u1ed9ng b\u1eb1ng c\u00e1ch t\u1ea1o th\u00e0nh m\u1ed9t r\u00e0o c\u1ea3n gi\u1eefa th\u00e9p v\u00e0 m\u00f4i tr\u01b0\u1eddng, ng\u0103n ch\u1eb7n s\u1ef1 ti\u1ebfp x\u00fac tr\u1ef1c ti\u1ebfp v\u1edbi c\u00e1c y\u1ebfu t\u1ed1 \u0103n m\u00f2n.<\/li>\n
- M\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng: M\u1ea1 k\u1ebdm nh\u00fang n\u00f3ng cung c\u1ea5p l\u1edbp m\u1ea1 k\u1ebdm d\u00e0y h\u01a1n so v\u1edbi m\u1ea1 \u0111i\u1ec7n. Qu\u00e1 tr\u00ecnh n\u00e0y li\u00ean quan \u0111\u1ebfn vi\u1ec7c nh\u00fang c\u00e1c bulong th\u00e9p v\u00e0o k\u1ebdm n\u00f3ng ch\u1ea3y, mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n tuy\u1ec7t v\u1eddi v\u00e0 t\u0103ng c\u01b0\u1eddng \u0111\u1ed9 b\u1ec1n trong m\u00f4i tr\u01b0\u1eddng ngo\u00e0i tr\u1eddi.<\/li>\n
- M\u1ea1 niken: M\u1ea1 niken mang l\u1ea1i b\u1ec1 m\u1eb7t \u0111\u1ed3ng nh\u1ea5t, ch\u1ed1ng \u0103n m\u00f2n. Niken l\u00e0 m\u1ed9t kim lo\u1ea1i c\u1ee9ng, d\u1ec5 u\u1ed1n, c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c nhi\u1ec7t \u0111\u1ed9 cao v\u00e0 ch\u1ed1ng m\u00e0i m\u00f2n, l\u00e0 l\u1ef1a ch\u1ecdn l\u00fd t\u01b0\u1edfng cho c\u00e1c m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t.<\/li>\n
- M\u1ea1 Chrome: M\u1ea1 Chrome t\u1ea1o ra b\u1ec1 m\u1eb7t s\u00e1ng, ph\u1ea3n chi\u1ebfu tr\u00ean \u1ed1c v\u00edt v\u00e0 mang l\u1ea1i kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n t\u1ed1t. Lo\u1ea1i m\u1ea1 n\u00e0y l\u00e0 l\u00fd t\u01b0\u1edfng cho c\u00e1c \u1ee9ng d\u1ee5ng trang tr\u00ed, m\u1eb7c d\u00f9 n\u00f3 c\u00f3 th\u1ec3 k\u00e9m b\u1ec1n h\u01a1n so v\u1edbi c\u00e1c t\u00f9y ch\u1ecdn kh\u00e1c.<\/li>\n
- Oxit \u0111en: Oxit \u0111en l\u00e0 m\u1ed9t d\u1ea1ng oxy h\u00f3a h\u00f3a h\u1ecdc t\u1ea1o ra l\u1edbp b\u1ea3o v\u1ec7 m\u00e0u \u0111en. M\u1eb7c d\u00f9 n\u00f3 cung c\u1ea5p m\u1ed9t m\u1ee9c \u0111\u1ed9 ch\u1ed1ng \u0103n m\u00f2n, nh\u01b0ng n\u00f3 c\u00f3 th\u1ec3 kh\u00f4ng hi\u1ec7u qu\u1ea3 b\u1eb1ng c\u00e1c h\u00ecnh th\u1ee9c m\u1ea1 kh\u00e1c trong m\u00f4i tr\u01b0\u1eddng kh\u1eafc nghi\u1ec7t h\u01a1n.<\/li>\n
- <\/li>\n<\/ul>\n
\u0110\u00e2y ch\u1ec9 l\u00e0 m\u1ed9t v\u00e0i l\u1edbp m\u1ea1 ph\u1ed5 bi\u1ebfn, c\u00e1c t\u00f9y ch\u1ecdn m\u1ea1 kh\u00e1c c\u00f3 th\u1ec3 c\u00f3 s\u1eb5n t\u00f9y thu\u1ed9c v\u00e0o y\u00eau c\u1ea7u c\u1ee5 th\u1ec3. \u0110\u1ea3m b\u1ea3o tham kh\u1ea3o \u00fd ki\u1ebfn c\u1ee7a nh\u00e0 s\u1ea3n xu\u1ea5t ho\u1eb7c nh\u00e0 cung c\u1ea5p v\u1ec1 l\u1edbp m\u1ea1 th\u00edch h\u1ee3p cho \u1ee9ng d\u1ee5ng c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n \n- <\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"
DIN 933 hay Deutsches Institut f\u00fcr Normung 933 \u0111\u1ec1 c\u1eadp \u0111\u1ebfn ti\u00eau chu\u1ea9n c\u1ee7a \u0110\u1ee9c quy \u0111\u1ecbnh c\u00e1c y\u00eau c\u1ea7u k\u1ef9 thu\u1eadt v\u00e0 k\u00edch th\u01b0\u1edbc c\u1ee7a bulong \u0111\u1ea7u l\u1ee5c gi\u00e1c ren su\u1ed1t. Nh\u1eefng bulong n\u00e0y th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p, bao g\u1ed3m x\u00e2y d\u1ef1ng, \u00f4 t\u00f4 v\u00e0 \u0111i\u1ec7n t\u1eed. Ti\u00eau chu\u1ea9n DIN 933 c\u0169ng quy \u0111\u1ecbnh v\u1eadt li\u1ec7u c\u1ee7a nh\u1eefng bulong n\u00e0y, \u0111\u1ea3m b\u1ea3o ch\u00fang \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 hi\u1ec7u su\u1ea5t c\u1ea7n thi\u1ebft. C\u00e1c v\u1eadt li\u1ec7u ph\u1ed5 bi\u1ebfn cho bu l\u00f4ng \u0111\u1ea7u l\u1ee5c gi\u00e1c DIN 933 bao g\u1ed3m th\u00e9p, th\u00e9p kh\u00f4ng g\u1ec9 v\u00e0 \u0111\u1ed3ng thau.<\/p>\n","protected":false},"featured_media":4887,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_cat":[210,207],"product_tag":[],"_links":{"self":[{"href":"https:\/\/nanotechvietnam.com\/en\/wp-json\/wp\/v2\/product\/4886"}],"collection":[{"href":"https:\/\/nanotechvietnam.com\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/nanotechvietnam.com\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/nanotechvietnam.com\/en\/wp-json\/wp\/v2\/comments?post=4886"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/nanotechvietnam.com\/en\/wp-json\/wp\/v2\/media\/4887"}],"wp:attachment":[{"href":"https:\/\/nanotechvietnam.com\/en\/wp-json\/wp\/v2\/media?parent=4886"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/nanotechvietnam.com\/en\/wp-json\/wp\/v2\/product_cat?post=4886"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/nanotechvietnam.com\/en\/wp-json\/wp\/v2\/product_tag?post=4886"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}} | | | | |
![\"\"](\"https:\/\/nanotechvietnam.com\/wp-content\/uploads\/2025\/04\/hinh-anh-din-933-600x424-1-300x212.jpeg\" "\\"\\"")
<\/p>\n![\"\"](\"https:\/\/nanotechvietnam.com\/wp-content\/uploads\/2025\/04\/ban-ve-din-933-1024x577-1-300x169.jpeg\" "\\"\\"")
<\/div>\n