Supplier of ASME SA 193 B8 Studs and Hex Bolts, check Difference Between grade b8 vs b8m here
astm a193 grade b8 bolts are high tensile steel bolts that are used in construction, chemical and petroleum industrial applications. Viha Steel & Forging is a leading manufacturer and supplier of the different types such as the astm a193 b8 stud bolts and others. There are class 1 and class 2 fasteners in this grade. The class 1 fasteners are standard whereas the class 2 fasteners are hardened. The class 2 is used where extra strength and hardness are needed. The ASME SA193 Grade B8 Hex Bolts can be used in medium and high temperature applications.
The material is good for cryogenic applications as well. The applications include waste water processing and construction as well. There are different types of fasteners and the B8 Screws are special. The screws are used in application conditions where there is no space for nuts and the fastener has to drive fully into the material surface. Sometimes, the application surface of two components has to be fitted together. The astm a193 b8 threaded rod is used in such conditions. The material class 1 has 75ksi minimum tensile strength and class 2 has minimum 105MPa tensile strength. The minimum yield strength ranges from 30ksi to 100ksi. The sa 193 gr b8 chemical composition has carbon, manganese, sulfur, phosphorus, chromium, nickel and molybdenum.
The composition provides the material with high strength and hardness. The class 1 has 223HBW max and the class 2 has 321HBW max. There are also other types of fasteners such as the B8 Studs which is used with bolts and nuts to tighten the components better. Please feel free to contact us for more information on the different types and prices of the B8 fasteners.
Material |
Specification |
Standards | Size |
Length |
ASTM A193 B8 Fasteners
|
IS BS ASTM |
DIN, ISO, JIS, GB, IS, BS, ASTM | M 02 to M 160 |
3 mm to 200 mm |
B7 |
Alloy steel, AISI 4140/4142 quenched and tempered |
B8 Bolts |
Class 1 Stainless steel, AISI 304, carbide solution treated. |
B8M |
Class 1 Stainless steel, AISI 316, carbide solution treated. |
B8 |
Class 2 Stainless steel, AISI 304, carbide solution treated, strain hardened |
B8M |
Class 2 Stainless steel, AISI 316, carbide solution treated, strain hardened |
buy directly from manufacturer of A193 B8 Material online and save cost, check astm a193 b8 threaded rod Specification
| Torque FT-LBS - ASTM 193 Grade B8 Bolts | |||
| BOLTS DIA |
Torque FT-LBS | ||
| 30% Initial Torque |
70% Torque |
100% Final Torque |
|
| 1/2 | 17 | 39 | 55 |
| 9/16 | 24 | 55 | 80 |
| 5/8 | 33 | 77 | 110 |
| 3/4 | 59 | 137 | 195 |
| 7/8 | 93 | 217 | 310 |
| 1 | 140 | 325 | 465 |
| 1.1/8 | 205 | 480 | 685 |
| 1¼ | 288 | 672 | 960 |
| 1.3/8 | 391 | 915 | 1305 |
| 1½ | 518 | 1208 | 1725 |
| 1.9/16 | 588 | 1372 | 1960 |
| 1.5/8 | 668 | 1558 | 2225 |
| 1¾ | 840 | 1960 | 2800 |
| 1.7/8 | 1044 | 2436 | 3480 |
| 2 | 1280 | 2985 | 4265 |
| 2¼ | 1850 | 4315 | 6165 |
| 2½ | 2565 | 5985 | 8550 |
| 2¾ | 3121 | 7282 | 10400 |
| 3 | 4080 | 9520 | 13600 |
| Torque Nm -ASTM 193 B8 Bolts | |||
| BOLTS DIA |
Torque Nm | ||
| 30% Initial Torque |
70% Torque |
100% Final Torque |
|
| 1/2 | 23 | 53 | 75 |
| 9/16 | 33 | 75 | 108 |
| 5/8 | 45 | 104 | 149 |
| 3/4 | 80 | 186 | 264 |
| 7/8 | 126 | 294 | 420 |
| 1 | 190 | 441 | 630 |
| 1.1/8 | 278 | 651 | 929 |
| 1¼ | 390 | 911 | 1302 |
| 1.3/8 | 530 | 1241 | 1769 |
| 1½ | 702 | 1638 | 2339 |
| 1.9/16 | 797 | 1860 | 2657 |
| 1.5/8 | 906 | 2112 | 3017 |
| 1¾ | 1139 | 2657 | 3796 |
| 1.7/8 | 1415 | 3303 | 4718 |
| 2 | 1735 | 4047 | 5783 |
| 2¼ | 2508 | 5850 | 8359 |
| 2½ | 3478 | 8115 | 11592 |
| 2¾ | 4232 | 9873 | 14101 |
| 3 | 5532 | 12907 | 18439 |
Bolts Grade |
Nuts |
Washers |
B8 Class 1 Bolts |
A194 Grade 8 |
SS304 |
We can supply B8 Screws with customized sizes, view A198 Gr. B8 Socket Head Cap Screws composition
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A193 B8 Square Bolts |
Astm A193 B8 Hex Bolts |
A193 gr b8 Plow Bolts |
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Astm A193 Grade B8 Bolts |
sa 193 b8 U Bolts |
A193 B8 Hex Head Bolts |
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A193 gr b8 Allen Cap Screw |
A193 B8 Socket Head Cap Screw |
Astm A193 B8 Hex Head Cap Screws |
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sa 193 b8 Hex Lag Screw |
A193 B8 Countersunk Slotted Screw |
A193 gr B8 Nylon Insert Nut |
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Astm A193 B8 Stud Bolts |
sa 193 b8 Double Ended Stud |
A193 grade B8 Threaded Rod |
Stockist of A193 B8 Heavy Hex Bolts as per the requirements of customers
| Dammam -KSA, Philippines, Indonesia, Belgium | A193 B8 Stud Bolts |
| Qatar, Europe, France, Thailand | A193 B8 Hex Bolts |
| Czechia, Thailand, Germany, Malaysia | A193 B8 Stud Bolts/ Threaded Rods |
| Malaysia, Bangladesh, USA, Finland | A193 Grade B8 Black Oxide Heavy Hex Bolts |
| South Africa, Kuwait, Saudi Arabia (KSA), Brazil | A193 B8 Threaded Rods |
| Bahrain, Singapore, South Africa | A193 B8 Stainless Threaded Rods |
| Philippines, UK, Australia, Nigeria | A193 B8 Bright Steel Stainless Stud Bolts |
| Oman, Hong Kong, Malaysia, UAE | A193 B8 Class 1 Stud Bolts |
| Chile, Iran, Italy, Singapore | A193 B8 Stainless Steel Stud Bolts |
| United Arab Emirates (UAE), Norway, Turkey, Malaysia | A193 Grade B8 18-8 Stainless Steel All thread Rod |
| Netherlands, Russia, Malaysia, Dubai | Stainless Steel B8 Stud Bolts A193 |
| Egypt, Mexico, Spain, UK | Stud Bolts A193 B8 Hardened Full Thread Rod |
| United Kingdom -UK, Malaysia, Europe, UAE | A193 B8 Fully Threaded Rod 1/4'' to 4'' |
**All measurements in millimeters**
NOMINAL SIZE (D) |
BODY DIAMETER |
HEAD THICKNEASTM A193 |
ACROASTM A193 THE FLATS |
ACROASTM A193 CORNERS |
||||
|---|---|---|---|---|---|---|---|---|
D (MAX) |
D (MIN) |
H (MAX) |
H (MIN) |
F (MAX) |
F (MIN) |
C (MAX) |
C (MIN) |
|
m10 |
10.00 |
9.78 |
6.63 |
6.17 |
17.00 |
15.73 |
18.48 |
17.77 |
m12 |
12.00 |
11.73 |
7.76 |
4.24 |
19.00 |
17.73 |
20.78 |
20.03 |
m14 |
14.00 |
13.73 |
9.09 |
8.51 |
22.00 |
20.67 |
24.25 |
23.35 |
m16 |
16.00 |
15.73 |
10.32 |
9.68 |
24.00 |
23.67 |
27.71 |
26.75 |
m20 |
20.00 |
19.67 |
12.88 |
12.12 |
30.00 |
29.16 |
34.64 |
32.95 |
m24 |
24.00 |
23.67 |
15.44 |
14.56 |
36.00 |
35.00 |
41.57 |
39.55 |
m30 |
30.00 |
29.67 |
19.48 |
17.92 |
46.00 |
45.00 |
53.12 |
50.85 |
m36 |
36.00 |
35.61 |
23.38 |
21.63 |
55.00 |
53.80 |
63.51 |
60.79 |
m42 |
42.00 |
41.38 |
26.97 |
25.03 |
65.00 |
62.90 |
75.06 |
71.71 |
m48 |
48.00 |
47.38 |
31.07 |
28.93 |
75.00 |
72.60 |
86.60 |
82.76 |
m56 |
56.00 |
55.26 |
36.2 |
33.80 |
85.00 |
82.20 |
98.15 |
93.71 |
m64 |
64.00 |
63.26 |
41.32 |
38.68 |
95.00 |
91.80 |
109.70 |
104.65 |
m72 |
72.00 |
71.26 |
46.45 |
43.55 |
105.00 |
101.40 |
121.24 |
115.60 |
m80 |
80.00 |
79.26 |
51.58 |
48.42 |
115.00 |
111.00 |
132.72 |
126.54 |
m90 |
90.00 |
89.13 |
57.74 |
54.26 |
130.00 |
125.50 |
150.11 |
143.07 |
m100 |
90.00 |
99.13 |
63.9 |
60.10 |
145.00 |
140.00 |
167.43 |
159.60 |
| Element | B7 | B8 | B8M |
| Carbon | 0.37 - 0.49% | 0.08% max | 0.08% max |
| Manganese | 0.65 - 1.10% | 2.00% max | 2.00% max |
| Phosphorus, max | 0.035% | 0.045% | 0.045% |
| Sulfur, max | 0.040% | 0.030% | 0.030% |
| Silicon | 0.15 - 0.35% | 1.00% max | 1.00% max |
| Chromium | 0.75 - 1.20% | 18.0 - 20.0% | 16.0 - 18.0% |
| Nickel | 8.0 - 11.0% | 10.0 - 14.0% | |
| Molybdenum | 0.15 - 0.25% | 2.00 - 3.00% |
| Bolts Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
| B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 |
| 2-5/8 - 4 | 115 | 95 | 16 | 50 | |
| 4-1/8 - 7 | 100 | 75 | 18 | 50 | |
| B8 Class 1 | All | 75 | 30 | 30 | 50 |
| B8M Class 1 | All | 75 | 30 | 30 | 50 |
| B8 Class 2 | Up to 3/4 | 125 | 100 | 12 | 35 |
| 7/8 - 1 | 115 | 80 | 15 | 35 | |
| 1-1/8 - 1-1/4 | 105 | 65 | 20 | 35 | |
| 1-3/8 - 1-1/2 | 100 | 50 | 28 | 45 | |
| B8M Class 2 | Up to 3/4 | 110 | 95 | 15 | 45 |
| 7/8 - 1 | 100 | 80 | 20 | 45 | |
| 1-1/8 - 1-1/4 | 95 | 65 | 25 | 45 | |
| 1-3/8 - 1-1/2 | 90 | 50 | 30 | 45 |
Find A193 B8MLCuN Stainless Steel Bolts Specification and Equivalent here
| Description | Per Unit (INR) | Price in USD | Price in Driham |
|---|---|---|---|
| STUD ASSEMBLY; BOLTS, 1/2IN, 100MM, SS A193, B8, ASMEB18.2.2, E=D MU | 1,898 | 25.94 | 95.26 |
| STUD ASSEMBLY; BOLTS, 1/2IN, 89MM , SS A193, B8 WITH 2 HEAVY HEX HEAD NUTS | 1,392 | 19.02 | 69.87 |
| STAINLESS STEEL FLANGE 5/8 x 80MM Length, STUD BOLTS W/NUTS, NACE A193 Gr.B8 | 212 | 2.90 | 10.64 |
| S.S. NUT BOLTS 3/4 DIA LENGTH 65MM A 193 B8 | 405 | 5.53 | 20.33 |
| HEX BOLTS WITH HEX NUT, A193 GR. B8 M20 X 110MM LONG, 50MM THREADED | 197 | 2.69 | 9.89 |
| BOLTS, A193 GR. B8(STAINLESS STEEL316) M12 AS PER DRAWING | 197 | 2.69 | 9.89 |
| BOLTS WITH 2 NUTS, A193 GR. B8 M16 X 160MM LONG, 45MM THREADING | 226 | 3.09 | 11.34 |
Diameter (D) |
Body Diameter (D) |
Across the Flats (F) |
Across the Corners © |
Head Height (H) |
Thread Lengths (T) |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
MAX |
MIN |
MAX |
MIN |
MAX |
MIN |
MAX |
MIN |
< 6” |
> 6” |
|
1/2 |
0.515 |
0.482 |
0.875 |
0.85 |
1.01 |
0.969 |
0.364 |
0.302 |
1.25 |
1.5 |
5/8 |
0.642 |
0.605 |
1.062 |
1.031 |
1.227 |
1.175 |
0.444 |
0.378 |
1.5 |
1.75 |
3/4 |
0.768 |
0.729 |
1.25 |
1.212 |
1.443 |
1.383 |
0.524 |
0.455 |
1.75 |
2 |
7/8 |
0.895 |
0.852 |
1.438 |
1.394 |
1.66 |
1.589 |
0.604 |
0.531 |
2 |
2.25 |
1 |
1.022 |
0.976 |
1.625 |
1.575 |
1.876 |
1.796 |
0.7 |
0.591 |
2.25 |
2.5 |
1 1/8 |
1.149 |
1.098 |
1.812 |
1.756 |
2.093 |
2.002 |
0.78 |
0.658 |
2.5 |
2.75 |
1 1/4 |
1.277 |
1.223 |
2 |
1.938 |
2.309 |
2.209 |
0.876 |
0.749 |
2.75 |
3 |
1 3/8 |
1.404 |
1.345 |
2.188 |
2.119 |
2.526 |
2.416 |
0.94 |
0.81 |
3 |
3.25 |
1 1/2 |
1.531 |
1.47 |
2.375 |
2.3 |
2.742 |
2.622 |
1.036 |
0.902 |
3.25 |
3.5 |
1 3/4 |
1.785 |
1.716 |
2.75 |
2.662 |
3.175 |
3.035 |
1.196 |
1.054 |
3.75 |
4 |
2 |
2.039 |
1.964 |
3.125 |
3.025 |
3.608 |
3.449 |
1.388 |
1.175 |
4.25 |
4.5 |
2 1/4 |
2.305 |
2.214 |
3.5 |
3.388 |
4.041 |
3.862 |
1.548 |
1.327 |
4.75 |
5 |
2 1/2 |
2.559 |
2.461 |
3.875 |
3.75 |
4.474 |
4.275 |
1.708 |
1.479 |
5.25 |
5.5 |
2 3/4 |
2.827 |
2.711 |
4.25 |
4.112 |
4.907 |
4.688 |
1.869 |
1.632 |
5.75 |
6 |
3 |
3.081 |
2.961 |
4.625 |
4.475 |
5.34 |
5.102 |
2.06 |
1.815 |
6.25 |
6 |