Material | Property Class | |
Low Carbon Steel | 1008/ SWRCH 6A, 8A | 6.8 |
1018/ 1022 | Hardened Self-tapping Screw | |
10B21 | 8.8 | |
Medium Carbon Steel | 1035/ 1045 | 10.9 |
35ACR/ 40ACR | 10.9 | |
10B33 | 10.9 | |
Alloy Steel | SCM435 | 12.9 |
Material | Class | |
Stainless Steel | SUS 302/ SUS 302HQ | |
SUS 304 | A2 | |
SUS 316 | A4 | |
SUS 410 (Magnetizable and can be strengthened by hardening) | C1 | |
SUS 416 (Magnetizable and can be strengthened by hardening) | C4 | |
SUS 430 (Magnetizable and can be strengthened by hardening) | F1 |
MECHANICAL PROPERTIRES OF BOLTS, SCREW AND STUDS (ACCORDING TO ISO 898-1) | ||||||||||||||
Mechanical properties | 3.6 | 4.6 | 4.8 | 5.6 | 5.8 | 6.8 | 8.8 | 8.8 | 9.8 | 10.9 | 12.9 | |||
d≤16 mm | d>16 mm | |||||||||||||
Tensile strength N/mm2 (kgf/mm2) | nom | 300 | 400 | 500 | 600 | 800 | 800 | 900 | 1000 | 1200 | ||||
min. | 330 | 400 | 420 | 500 | 520 | 600 | 800 | 830 | 900 | 1040 | 1220 | |||
(33.7) | (40.8) | (42.8) | (51.0) | (53.0) | (61.2) | (81.6) | (84.6) | (91.8) | (106.0) | (124.0) | ||||
Vickers Hardness | min. | 95 | 120 | 130 | 155 | 160 | 190 | 250 | 255 | 290 | 320 | 385 | ||
max. | 250 | 320 | 335 | 360 | 380 | 435 | ||||||||
Brinell hardness | min. | 90 | 114 | 124 | 147 | 152 | 181 | 238 | 242 | 276 | 304 | 366 | ||
max. | 238 | 304 | 318 | 342 | 361 | 414 | ||||||||
Rockwell hardness | HRB | min. | 99.5 | - | ||||||||||
max. | 52 | 67 | 71 | 79 | 82 | 89 | - | |||||||
HRC | min. | - | 22 | 23 | 28 | 32 | 39 | |||||||
max. | - | 32 | 34 | 37 | 39 | 44 | ||||||||
Surface Hardness HV | max. | - | Should not be more than 30 Vickers points above the measured core hardness | |||||||||||
Lower Yield stress, N/mm2 (kgf/mm2) | nom. | 180 | 240 | 320 | 300 | 400 | 480 | - | ||||||
min. | 190 | 240 | 340 | 300 | 420 | 480 | - | |||||||
(19.4) | (24.5) | (34.7) | (30.6) | (42.8) | (48.9) | |||||||||
Proof stress, N/mm2 (kgf/mm2) | nom. | - | 640 | 640 | 720 | 900 | 1080 | |||||||
min. | - | 640 (65.3) | 660 (67.3) | 720 (73.4) | 940 (95.9) | 1100 (112) | ||||||||
Stress under proofing load | stress ratio | 0.94 | 0.94 | 0.91 | 0.93 | 0.90 | 0.92 | 0.91 | 0.91 | 0.90 | 0.88 | 0.88 | ||
N/mm2 (kgf/mm2) | 180 (18.4) | 225 (22.9) | 310 (31.6) | 280 (28.6) | 380 (38.7) | 440 (44.9) | 580 (59.1) | 600 (61.2) | 650 (66.3) | 830 (84.6) | 970 (98.9) | |||
Elongation after fracture (%) | min. | 25 | 22 | 14 | 20 | 10 | 8 | 12 | 12 | 10 | 9 | 8 |
Low Carbon Steel (chemical composition) | |||||||
SAE/ANSI | C(%) | Mn(%) | P(%) | S(%) | Si(%) | B(%) | Al(%) |
1008 | ≤0.06 | ≤0.35 | 0.040 | 0.050 | - | - | - |
1018 | 0.15-0.20 | 0.60-0.90 | 0.040 | 0.050 | - | - | |
1022 | 0.18-0.23 | 0.70-1.00 | 0.040 | 0.050 | - | - | |
Medium Carbon Steel (chemical composition) | |||||||
SAE/ANSI | C(%) | Mn(%) | P(%) | S(%) | Si(%) | B(%) | Al(%) |
1045 | 0.43-0.50 | 0.60-0.90 | 0.040 | 0.050 | - | - | |
SWRCH 16A | 0.13-0.18 | 0.60-0.90 | ≤0.030 | ≤0.035 | ≤0.10 | - | ≥0.02 |
SWRCH 18A | 0.15-0.20 | 0.60-0.90 | ≤0.030 | ≤0.035 | ≤0.10 | - | ≥0.02 |
10B21 | 0.18-0.23 | 0.70-1.00 | ≤0.030 | ≤0.035 | ≤0.10 | ≥0.0005 | - |
10B33 | 0.32-0.36 | 0.70-1.00 | ≤0.030 | ≤0.035 | 0.15-0.35 | ≥0.0005 | - |
For reference only
Stainless Steel (chemical composition) | ||||||||
SAE/ANSI | C(%) | Mn(%) | P(%) | S(%) | Si(%) | Cr(%) | Ni(%) | Mo(%) |
SUS 302 | 0.15 | 200 | 0.045 | 0.030 | 1.00 | 17.00-19.00 | 8.00-10.00 | - |
SUS 304 | 0.08 | 2.00 | 0.030 | 0.15 | 1.00 | 17.00-19.00 | 8.00-10.00 | - |
SUS 304L | 0.03 | 2.00 | 0.045 | 0.030 | 1.00 | 18.00-20.00 | 8.00-12.00 | - |
SUS 316SUS 316L | 0.080.03 | 2.002.00 | 0.0450.045 | 0.0300.030 | 1.001.00 | 16.00-18.0016.00-18.00 | 10.00-14.0010.00-14.00 | 2.00-3.002.00-3.00 |
SUS 430 | 0.12 | 1.00 | 0.040 | 0.030 | 1.00 | 14.00-18.00 | - | - |
SUS 430F | 0.12 | 1.25 | 0.060 | ≥0.15 | 1.00 | 14.00-18.00 | - | ≤0.60 |
For reference only