ASTM A193 Grade B8C Bolts
Specification
CHEMICAL & MECHANICAL COMPOSITION
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ASME SA193 Gr B8c class 1 Screw, ASTM A193 grade b8c Hex Bolts manufacturer and supplier in India.
India’s Largest ASTM A193 B8C Bolts, B8C Stud, ASME SA193 Grade B8C Bolts Manufacturers in India.
Detailed Information
Prashaant Steel & Alloys is a well-known Grade B8C Bolts maker and retailer. We manufacture ASTM A193 Grade B8C Bolts with the best quality raw materials from our vast inventory. Prashaant Steel & Alloys produces Grade B8C Bolts of excellent quality and has carved out a niche for itself in the industry. Our Grade B8C Bolts are highly common and are used in a number of industries due to their high strength and reliability. Prashaant Steel & Alloys has a well-equipped production facility that can fill huge orders of ASTM A193 Grade B8C Bolts in a range of sizes and diameters. We manufacture Grade B8C Bolts and export them to all of the world’s big cities. We store our goods in suitable wooden boxes and ship them with all appropriate paperwork to prevent product degradation during shipping.
There are two classes of these fasteners and both classes are used in different application setups. Prashaant Steel & Alloys Corporation is a leading manufacturer and supplier of both classes in various dimensions. The ASTM A193 gr. b8c Material has 75ksi minimum tensile strength and 30ksi minimum yield strength for class 1. The class products range in size from ¾ inches to 1 ½ inches. These different dimensions have different strength values. The tensile strength of class 2 ranges from 100ksi to 125ksi and the yield strength varies from 12ksi to 28ksi. The Sa 193 Gr B8c Screw is used under high pressure high temperature applications. The hardness of these fasteners also varies with class. The class 1 fasteners have 223HBW and the class 2 fasteners have 321 HBW hardness. As a leading supplier, we supply the ASTM A193 B8C Class 2 Fasteners and the class 1 fasteners in all available sizes.
ASTM A193 B8C Class 1 Stud, bolts and other fasteners are made up of AISI 347 austenitic stainless steel grade. The material has carbon, manganese, phosphorus, sulfur, silicon, 17% chromium, 9% nickel and columbium and tantalum for stabilization. The ASTM A193 grade b8c Hex Bolts have good tensile and yield strengths.
Specifications chart of ASTM A193 Grade B8c Hex Bolts:
|
Grade |
Tensile Class |
Raw Material Description |
|
B8C |
Class 1 |
AISI 347 Stainless Steel, Carbide Solution Treated |
|
B8C |
Class 2 |
AISI 347 Stainless Steel, Carbide Solution Treated and Strained Hardened |
Chemical Structure of ASME SA 193 Gr B8c Screw:
|
Chemical |
Percentage (%) |
|
C. |
0.08 max. |
|
Mn. |
2.00 max. |
|
Si. |
1.00 max. |
|
P. |
0.045 max. |
|
S. |
0.030 max. |
|
Cr. |
17.00—19.00max. |
|
Ni. |
12.00—13.00max. |
|
Mo. |
—- |
A193 B8c Class 2 stud Bolts Mechanical Strength Table:
|
Grade |
Diameter |
Tensile Strength |
Yield Strength |
Elongation |
Reduction |
Hardness |
|
Grade B8C |
M20 and under |
860 |
690 |
12 |
35 |
321 HBW or 35 HRC |
|
Grade B8C |
M20 to M24, inclusive |
690 |
550 |
20 |
45 |
321 HBW or 35 HRC |
|
Grade B8C |
M24 to M30, inclusive |
655 |
450 |
25 |
45 |
321 HBW or 35 HRC |
|
Grade B8C |
M30 to M36, inclusive |
620 |
345 |
30 |
45 |
321 HBW or 35 HRC |
Dimensions of ASME SA193 B8C Bolts:
|
NOMINAL SIZE (D) |
BODY DIAMETER |
HEAD THICKNESS ASTM A193 |
ACRO ASTM A193 THE FLATS |
ACROASTM A193 CORNERS |
||||
|
D (MAX) |
D (MIN) |
H (MAX) |
H (MIN) |
F (MAX) |
F (MIN) |
C (MAX) |
C (MIN) |
|
|
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 |
|
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 |
|
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 |
|
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 |
Various types of ASTM A193 Gr. B8c Bolt:
|
ASTM A193 Grade B8C Stud Bolt |
A193 B8C Hex Nut |
|
ASTM A193 B8C Anchor Bolt |
B8C Heavy Hex Bolts |
|
A193 Gr. B8C Split Washers |
ASME SA193 Eye Bolt |
|
ASTM A193 Gr. B8C Threaded Rod |
ASTM A193 Grade B8C Double Ended Studs |
|
ASME SA193 B8C Eye Nuts |
A193 B8C Spring Washers |
|
ASTM A193 Grade B8C Lock Washers |
ASTM A193 Grade B8C T Nuts |
|
ASTM A193 Grade B8C Lock Nut |
A193 B8C Square Nuts |
|
ASME SA193 B8C U Bolts |
A193 B8C Flange Bolts |
ASTM A193 B8C Heavy Hex Bolt Dimension:
|
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 |
6.5 |
Standard Specification of ASME SA193 B8C Bolts:
- ASTM A193 / A193M – 16 : Standard Specification for High-Temperature Bolting, with Expansion Coefficients Comparable to Austenitic Stainless Steels
- ASTM A1082 / A1082M – 16 : Standard Specification for High Strength Precipitation Hardening and Duplex Stainless Steel Bolting for Special Purpose Applications
- ASTM F2281 : Standard Specification for Stainless Steel and Nickel Alloy Bolts, Hex Cap Screws, and Studs, for Heat Resistance and High Temperature Applications Designation
- ASTM A1014 / A1014M – 16 : Standard Specification for Precipitation-Hardening Bolting (UNS N07718) for High Temperature Service
- ASTM A962 / A962M – 16a : Standard Specification for Common Requirements for Bolting Intended for Use at Any Temperature from Cryogenic to the Creep Range
- ASTM A638 / A638M : Standard Specification for Precipitation Hardening Iron Base Superalloy Bars, Forgings, and Forging Stock for High-Temperature Service
