
ASTM A193 Grade B16 Bolts and nuts manufcaturer in india at low price according to international Standard, view ASME SA193 b16 equivalent
ASTM A193 Grade B16 Bolts are made up of carbon, manganese, phosphorus, sulfur, silicon, chromium, molybdenum, vanadium and aluminum in the composition. Viha Steel & Forging is a leading manufacturer and supplier of the b16 bolt material and other fasteners. The material has high hardness with 321 BHN. The minimum yield strength of the material is 100ksi to 125ksi depending on the production methods and sizes. The ASTM A193 B16 Studs come in sizes ranging from ¾ inches to 8 inches.
There are hot rolled, heat treated and machined types with cold finished and heat treated types. The astm a193 b16 equivalent grades and specification of the b16 bolts nuts is for high tensile, high temperature and special purpose applications. The chromium, molybdenum, vanadium alloy has up to 860MPa minimum tensile strength. The vanadium addition in the sa193 b16 Studs make them hold the strength even at elevated temperatures. The fasteners can withstand temperatures up to 450 degrees Celsius. The applications therefore are in the power generation industries.
Nuclear, thermal, hydropower and other types of power generation plants use the b16 bolts and other types. There are bolts, screws, threaded rods, stud bolts, washers and nuts. The different types are useful in different application requirements. The a193 gr b16 hex bolts are special with a unique head type that is used to hold components in a floating position. As a leading manufacturer and supplier of the different types, sizes and shapes of the B16 grade bolts. Please feel free to contact us for more information on the different types such as the b16 transmission bolts and others with their prices.
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B16 studs/bolts Elements | Range | Product Variation, Over or Under [NOTE] |
Carbon | 0.36 - 0.47% | 0.02 |
Manganese, max | 0.45 - 0.70% | 0.03 |
Phosphorus, max | 0.035% | 0.005 over |
Sulfur, max | 0.040% | 0.005 over |
Silicon | 0.15 - 0.35% | 0.02 |
Chromium | 0.80 - 1.15% | 0.05 |
Molybdenum | 0.50 - 0.65% | 0.03 |
Vanadium | 0.25 - 0.35% | 0.03 |
Aluminium, Max | 0.015% | ... |
Mechanical Properties for Metric A193 Grade B16 Bolts/Studs | ||||||
---|---|---|---|---|---|---|
bolts Diameter mm | Min Tempering Temperature, °C | Tensile Strength min, MPa | Yield strength, min, 0.2% offset, MPa | Elongation in 4D min, % | Reduction of Area, min, % | Hardness, max |
M64 and Under | 650 | 860 | 725 | 18 | 50 | 321 HBW or 35 HRC |
over M64 to M100 | 650 | 760 | 655 | 17 | 45 | 321 HBW or 35 HRC |
over M100 to M180 | 650 | 690 | 585 | 16 | 45 | 321 HBW or 35 HRC |
Mechanical Properties for Imperial A193 Grade B16 Bolts/Studs | ||||||
---|---|---|---|---|---|---|
bolts Diameter Inch | Min Tempering Temperature, °C | Tensile Strength min, ksi | Yield strength, min, 0.2% offset, ksi | Elongation in 4D min, % | Reduction of Area, min, % | Hardness, max |
2.5 and under | 1200 | 125 | 105 | 18 | 50 | 321 HBW or 35 HRC |
over 2.5 to 4 | 1200 | 110 | 95 | 17 | 45 | 321 HBW or 35 HRC |
over 4 to 7 | 1200 | 100 | 85 | 16 | 45 | 321 HBW or 35 HRC |
Standards |
Designation |
---|---|
B16 Studs |
A193 B16: Class 1 Stainless Steel, AISI 304, Carbide Solution Treated. |
Studs Dimensions |
ASME B18.2.1, B18.3 |
---|---|
Melt Origin |
South America/East Europe/JapanKorea/ |
Product Origin |
Made in India |
Threads Configuration |
ASME B1.1 2A/3A Inch Unified Threads and B1.13M 6h Metric Coarse Threads |
Studs Certification |
Dual Certified As per ASTM & ASME Codes |
Additional Certifications |
PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
Mandatory Requirements |
Free from Mercury & Radioactive Contamination |
Additional Requirements |
NACE MR0103 / MR0175 / ISO 15156 Compliance |
Grade | Steel Description |
---|---|
Grade B16 bolts/Studs | Chromium-Molybdenum-Vanadium Alloy Steel, Quenched & Tempered |
b16 hex bolts Suppliers, Have difficulty to find sa193 b16 Studs in tough sizes ? Call Viha Steel now




Studs GRADE AND CLASS | DIAMETER | TENSILE STRENGTH MIN KSI | YIELD STRENGTH 0.2% OFFSET KSI | ELONGATION IN 4D, MIN, % | REDUCTION OF AREA MIN, % | HARDNESS MAX BRINELL | HARDNESS MAX ROCKWELL |
---|---|---|---|---|---|---|---|
B16 Studs | to 2-1/2" | 125 | 105 | 18 | 50 | 321 | C35 |
over 2-1/2" to 4" | 110 | 95 | 17 | 45 | 321 | C35 | |
over 4" to 7" | 100 | 85 | 16 | 45 | 321 | C35 | |
Classes 1C and 1D: B8S | ALL | 95 | 50 | 35 | 55 | 271 | C28 |
Nut Grade | Washer Grade |
---|---|
ASTM A194 Grade 16 | ASTM F436 |
A193 B16 Studs/Fasteners |
Price |
Studs bolt astm a193 b16 |
US$ 1.80-US$ 2.30 / Kilogram |
a193 grade b16 bolts and nuts |
US$ 0.10-US$ 1.00 / Piece |
a193 grade b16 hex bolts and nuts |
US$ 0.03-US$ 5.00 / Piece |
Grade A193 B16 Bolt Studs Bolt With Nuts |
US$ 0.15-US$ 25.00 / Piece |
Supply astm a193 b16 head bolts, transmission bolts in all sizes as per Client requirement
Torque FT-LBS - ASTM 193 Grade B16 Stud 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 B16 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 |
Quenched & Tempered at 860º C minimum.
bolts 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. |
Indonesia, Dammam -KSA, Philippines, Belgium | ASTM A193 B16 studs Bolts |
France, Qatar, Europe, Thailand | ASTM A193 B16 Black Oxide Double Head studs Bolts |
Germany, Czechia, Thailand, Malaysia | studs Bolts ASTM A193 Gr. B16 |
USA, Malaysia, Bangladesh, Finland | Carbon Steel Alloy Steel ASTM A193 B16 studs Bolts with Nuts |
Saudi Arabia (KSA), South Africa, Kuwait, Brazil | Galvanized ASTM A193 B16 Hex Bolts |
South Africa, Bahrain, Singapore | A193-B16 Heavy Hex Bolts 1/4"-2" Black |
Australia, Philippines, UK, Nigeria | Black Oxide ASTM A193 B16 studs Bolts |
Malaysia, Oman, Hong Kong, UAE | ASTM A193 B16 Tefloncoated studs Bolts with A194 Heavy Hex Nut |
Italy, Chile, Iran, Singapore | Fully Threaded ASTM A193 B16 DIN976 M6 Threaded Rod studs Bolts |
Turkey, United Arab Emirates (UAE), Norway, Malaysia | ASTM A193 Gr B16 Thread Rods/Thread Bars/studs Bolts |
Malaysia, Netherlands, Russia, Dubai | Non- Head studs Bolts ASTM A193 B16 |
Spain, Egypt, Mexico, UK | High Tensile ASTM A193 B16 Black Full Thread Hex Bolts |
A193 Gr B16 Studs Bolts | A193 Gr B16 Cap Screws |
Astm A193 Gr B16 Studs Bolts | A193 Grade B16 Threaded Rods |
Grade B16 Boltsing | Astm A193 Grade B16 Heavy Hex Screws |
A193 Gr B16 Hex Cap Screws | Sa 193 Gr B16 Socket Head Cap Screws |
Asme Sa 193 Gr B16 Bolts | Astm A193 Gr B16 Studs Bolts |
astm a193 gr b16 material | Asme Sa 193 B16 Cap Screws |
A193 Gr B16 Studs Bolts | A193 Gr b16 Bolts |
b16 Bolts material | A193 B16 Hex Bolts |
Asme Sa 193 B16 Hex Bolts | Asme Sa 193 Grade B16 Heavy Hex Screws |
Asme Sa 193 Gr B16 Square Bolts | sa 193 gr b16 Studs |
Sa193 Gr B16 Studs | Asme Sa 193 B16 Threaded Rods |
A193 Gr B16 Square Bolts | A193 Gr B16 Cap Screws |
Astm A193 Gr B16 Square Bolts | a193 gr b16 material |
Asme Sa 193 B16 Hex Cap Screws | grade b16 Boltsing |
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**All measurements in millimeters**
BOLTS 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 |
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