A bolt which is widely recommended for use case in high pressure services is an ASTM A193 B8 bolts. It follows the material standard ASTM A193.
This standard mainly covers for the bolting materials which are stainless steel, in high pressure and temperature services.
Therefore, it means that you can use ASTM A193 gr B8 bolt in high temperature scenarios.
SA 193 gr B8 chemical composition comprises 0.38% carbon, 0.75% manganese, max 0.035% phosphorous, 0.040% sulphur, 0.8% chromium and 0.15%-0.25% molybdenum contents.
We are the number one manufacturer of class 1 ASME SA 193 b8 bolts at the most competitive prices in India.
Customers also urge for the packaging options that are available for a ASME SA193 grade B8 hex bolts. Below are some of the ideal options that are available for this purpose:
- Firstly, packaging of A193 B8 heavy hex bolts depends entirely upon the availability and the quantity demanded by the customer. Ideally, it comes in a box, securely sealed and then sent to them.
- The packaging must be done in a way that it should not be damages. To avoid such situations, you can prefer boxes and bags, that mainly protect the products from scratches.
- Fasteners are mainly known to be packed in bags that show tear-resistant behaviour.
- Other than this, such packaging also provides cost affordability alternatives to the customers.
To know more about other relevant options, you can also refer to the A193 B8MLCuN stainless steel bolts specification. Many more resembling facilities are provided by us at Hiltonsteel, where we ensure that customers are aware of our functionality.
Table of Content
As a supplier, we specialise in providing SA193 grade b8 hex bolts in Mumbai that meet your exact specifications and regulatory requirements.
Sizes in Metric | Sizes in Inch | Imperial Threads |
---|---|---|
M2 – M152 | ¼ – 8 inch | BSW, ASME, BSF |
Metric Threads | Application | Tensile Classes |
ISO, ASME | general-purpose industrial bolting application | Class1, Class2, Class 2B |
Standards Of Thread | ||
ISO 268, ISO 68-1, ASME B1.1, ISO 724, BS 84, ASME B1.13M, BS 3643 |
Size | Price | Export to | Estimated delivery days from India |
---|---|---|---|
1/2 inch | US $30.88 | USA | 40-60 |
M12 * 1000 mm | US $ 11.35 | Uk | 30 |
Dia: 3 * 950 mm | US $7.49 | France | 30 |
1/2 inch | US $21.78 | Italy | 30 |
1.1/8 * 240 mm | US $10.45 | Taiwan | Â 15 |
Dia: 3 * 550 mm | US $9.51 | Malaysia | 10 |
1.3/4 * 400 mm | US $11.45 | Maldives | Â 7 |
Dia: 3 * 550 mm | US $10.33 | Bangladesh | Â 14 |
5/8 * 135 mm | US $9.34 | Argentina | Â 45 |
7/8 * 225 mm | US $5.64 | Mayanmar | Â 25 |
1.1/4 * 285 mm, | US $8.62 | Brazil | Â 45-60 |
1.3/4 * 165 mm | US $7.65 | Cambodia | 9 |
Dia: 3 * 325 mm | US $7.35 | Chile | Â 45 |
1.1/2 * 355 mm | US $8.51 | Bolivia | Â 45 |
1.3/4 * 425 mm | US $8.37 | Venezuela | Â 45 |
1.1/4 * 260 mm | US $8.75 | Ecuador | Â 60 |
Dia: 3 * 775 mm | US $7.40 | Paraguay | Â 60 |
1.3/4 * 525 mm | US $8.13 | Colombia | Â 45 |
Dia: 3 * 350 mm | US $7.34 | Guyana | Â 60 |
The main difference between ASTM A193 B8 class 1 bolts and B8M bolts lie in their ability to resist corrosion.
When viewed from the chemical composition point of view, you would see that ss 304 is used for making a ASTM A193 grade B8 bolts.
This means that it comprises less nickel content, hence they cannot resist corrosive environments; because of the composition of bolts B8M from stainless steel 316; which comparatively have higher nickel contents.
More the contents of nickel, in addition to chromium, more corrosion resistant behaviour it exhibits to industrial needs and standards.
ASTM A193 grade b8 bolts
ASME SA193 gr b8 hex bolts
B8 screws
As stockist, we provide and carry b8 screws with sizes ranging from ¼” to 8″ and threads including ISO, ASME, BSW, BSF
A193 gr. b8 socket head cap screws
- Inch: ¼” to 8″
- Metric: M6 to M152
- Thread:BSW, ASME, ISO, BSF
B8 stainless steel bolts
- Automobile industry
- Offshore industries
- structural steel works
Product | ISO | UNI | DIN | ASME | |
---|---|---|---|---|---|
Metric | Imperial | ||||
Set Screws | 4029 | 5929 | 916 | B18.3.1M | B18.3 |
Hex Bolts | 4014 | 5737 | 931 | B18.2.3.5M | B18.2.1 |
Hex Cap Screws | 4017 | 5739 | 933 | B18.2.3.1M | B18.2.1 |
Heavy Hex Bolts | 7412 | 5712 | 6914 | B18.2.3.7M | B18.2.1 |
Socket Head Cap Screws | 4762 | 5931 | 912 | B18.3.1M | B18.3 |
Countersunk Screws | 10642 | 5933 | 7991 | B18.3.1M | B18.3 |
NS (D) | Across The Flats | Thickness of Head | Body Diameter | Across the Corners | ||||
---|---|---|---|---|---|---|---|---|
Force (minimum) | Force (maximum) | Head (minimum) | Head(maximum) | Dia (minimum) | Dia(maximum) | Corner (minimum) | Corner (maximum) | |
m12 | 17.73 | 19.00 | 4.24 | 7.76 | 11.73 | 12.00 | 20.03 | 20.78 |
m90 | 125.50 | 130.00 | 54.26 | 57.74 | 89.13 | 90.00 | 143.07 | 150.11 |
m10 | 15.73 | 17.00 | 6.17 | 6.63 | 9.78 | 10.00 | 17.77 | 18.48 |
m20 | 29.16 | 30.00 | 12.12 | 12.88 | 19.67 | 20.00 | 32.95 | 34.64 |
m16 | 23.67 | 24.00 | 9.68 | 10.32 | 15.73 | 16.00 | 26.75 | 27.71 |
m14 | 20.67 | 22.00 | 8.51 | 9.09 | 13.73 | 14.00 | 23.35 | 24.25 |
m24 | 35.00 | 36.00 | 14.56 | 15.44 | 23.67 | 24.00 | 39.55 | 41.57 |
m36 | 53.80 | 55.00 | 21.63 | 23.38 | 35.61 | 36.00 | 60.79 | 63.51 |
m30 | 45.00 | 46.00 | 17.92 | 19.48 | 29.67 | 30.00 | 50.85 | 53.12 |
m42 | 62.90 | 65.00 | 25.03 | 26.97 | 41.38 | 42.00 | 71.71 | 75.06 |
m56 | 82.20 | 85.00 | 33.80 | 36.2 | 55.26 | 56.00 | 93.71 | 98.15 |
m48 | 72.60 | 75.00 | 28.93 | 31.07 | 47.38 | 48.00 | 82.76 | 86.60 |
m72 | 101.40 | 105.00 | 43.55 | 46.45 | 71.26 | 72.00 | 115.60 | 121.24 |
m64 | 91.80 | 95.00 | 38.68 | 41.32 | 63.26 | 64.00 | 104.65 | 109.70 |
m80 | 111.00 | 115.00 | 48.42 | 51.58 | 79.26 | 80.00 | 126.54 | 132.72 |
m100 | 140.00 | 145.00 | 60.10 | 63.9 | 99.13 | 90.00 | 159.60 | 167.43 |
We can assist you if you require ASTM A193 b8 bolts stock to meet the requirements of your project, You can view the various A193 b8 material varieties that are currently available here.
Bolt Grade | Washers | Nuts |
---|---|---|
B8 Class 1 | SS304 | A194 Grade 8 |
B8 Class 2 | SS304 | A194 Grade 8 |
TORQUE NEWTON-METER | |||
Bolt Diameter |
Torque 70% | Initial Torque 30% |
Final Torque 100% |
---|---|---|---|
1/2 | 49 | 22 | 71 |
9/16 | 72 | 31 | 102 |
1 | 338 | 145 | 483 |
1â…› | 403 | 172 | 575 |
7/8 | 225 | 96 | 321 |
5/8 | 99 | 42 | 141 |
1¼ | 565 | 243 | 808 |
1½ | 778 | 334 | 1113 |
2¾ | 3118 | 1337 | 4454 |
19/16 | 531 | 228 | 759 |
1⅜ | 590 | 252 | 843 |
3/4 | 175 | 75 | 249 |
1¾ | 761 | 325 | 1086 |
1â… | 603 | 259 | 862 |
1â…ž | 944 | 404 | 1348 |
2¼ | 1673 | 717 | 2389 |
2 | 1157 | 496 | 1653 |
2½ | 2317 | 994 | 3311 |
3 | 4078 | 1748 | 5826 |
TORQUE FOOT-POUND FORCE -LBS | |||
Bolt Diameter |
Torque 70% | Initial Torque 30% |
Final Torque 100% |
---|---|---|---|
9/16 | 53 | 23 | 75 |
3/4 | 129 | 55 | 184 |
1 | 249 | 107 | 356 |
1â…› | 297 | 127 | 424 |
7/8 | 166 | 71 | 237 |
1/2 | 36 | 16 | 52 |
1⅜ | 435 | 186 | 622 |
1â…ž | 696 | 298 | 994 |
2¾ | 2300 | 986 | 3285 |
1¼ | 417 | 179 | 596 |
5/8 | 73 | 31 | 104 |
1â… | 445 | 191 | 636 |
19/16 | 392 | 168 | 560 |
3 | 3008 | 1289 | 4297 |
2 | 853 | 366 | 1219 |
1½ | 574 | 246 | 821 |
2½ | 1709 | 733 | 2442 |
1¾ | 561 | 240 | 801 |
2¼ | 1234 | 529 | 1762 |
Class | Heat Treatment Procedure |
---|---|
Class 2 | Strain Hardened and Carbide Solution Treatment |
Class 1 | Treatment of Carbide Solution |
Class 2B | Strain Hardened and Carbide Solution Treatment |
Marking | Class |
---|---|
Manufacturer’s Logo & “B8SH” Grade Marking | Class 2 |
Manufacturer’s Logo & “B8” Grade Marking | Class 1 |
Manufacturer’s Logo & “B9” Grade Marking | Class 2B |
We offer A193 gr. b8 socket head cap screws and washer with Mill TC at the most competitive costs with rapid delivery. Review sa 193 gr b8 chemical composition & other properties
Mn | C | S | P | Fe | Si | Ni | Cr | Mo | Cu | N | W | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Min | – | – | – | – | – | – | 8.0 | 18.0 | – | – | – | – |
Max | 2.0 | 0.08 | 0.030 | 0.045 | Bal | 1.0 | 11.0 | 20.0 | – | – | – | – |
A193 B8 | Classes |
---|---|
304 | Class 2 and Class 1 |
Inch Products
Diameter | Class | Reduction of Area, min, % | Yield Strength, min, ksi | Tensile Strength, min, ksi | Elongation in 4D min, % | Max Hardness | |
---|---|---|---|---|---|---|---|
3/4 and under | 2 | 35 | 100 | 125 | 12 | 35 HRC | 321 HBW |
Over 1 – 1 1/4 | 35 | 65 | 105 | 20 | |||
Over ¾ – 1 | 35 | 80 | 115 | 15 | |||
Over 1 1/4 – 1 1/2 | 45 | 50 | 100 | 28 | |||
All Dia. | 1 | 50 | 30 | 75 | 30 | 96 HRB | 223 HBW |
2 and under | 2B | 40 | 75 | 95 | 25 | 35 HRC | 321 HBW |
Over 2 – 2 1/2 | 40 | 65 | 90 | 30 | |||
Over 2 1/2 – 3 | 40 | 55 | 80 | 30 |
Metric Products
Class | Diameter | Reduction of Area, min, % | Yield Strength, min, ksi | Tensile Strength, min, ksi | Elongation in 4D min, % | max hardness | |
---|---|---|---|---|---|---|---|
2 | Over M30 – M36 | 45 | 345 | 690 | 28 | 35 HRC | 321 HBW |
Over M20 – M24 | 35 | 550 | 795 | 15 | |||
M20 and under | 35 | 690 | 860 | 12 | |||
Over M24 – M30 | 35 | 450 | 725 | 20 | |||
1 | All Dia. | 50 | 205 | 515 | 30 | 96 HRB | 223 HBW |
2B | M48 and under | 40 | 515 | 655 | 25 | 35 HRC | 321 HBW |
Over M64 – M72 | 40 | 380 | 550 | 30 | |||
Over M48 – M64 | 40 | 450 | 620 | 30 |
A198 Gr. B8 socket head cap screws are known to exhibit the hardness ratings and strength characteristics into two different property classes, which are as follows:
Property class one: Class 1 material
- Excellent tensile strength characteristics with the value being 75 ksi.
- It also shows good yield strength of 30 ksi.
- Other than this it shows maximum 96 HRB hardness.
Property class two: A193 B8 Class 2 Material
- Shows tensile strength value of 125 ksi.
- Appreciating yield strength is shown by this material; value being 100 ksi.
- Shows 321 HBW maximum hardness.
SA193 B8 Studs are widely used by industrial standards. Below are some of the industries that demand for them:
- Chemical applications, where resistance to corrosion is a must factor. Appreciating corrosion resistance is show when one uses B8 bolts.
- Shipbuilding processes, where temperature tolerance and hardness is needed.
- Power plants, which require high pressure condition tolerance. With the two classes of tensile strength, it is clear that it shows excellent strength characteristics.
- Fertilization process also aspire for such bolts.
- Cement applications make use of such bolts to handle stress related situations. To avoid wear and tear, it is essential for its use case.
- Oil and gas industries, where usually the temperature conditions and pressure conditions are high. This bolt makes sure that no degraded properties are seen, hence industries demand for it.
- For elevated temperatures, we would require this bolt in petrochemical industries.
- Sugar industry also aspire for such bolts, for their industrial applications.
Because A193 gr B8 bolts are composed and manufactured from stainless steel 304, they offer excellent resistance to corrosion. This is because they comprise nickel and chromium contents in higher amounts in the chemical mixture.
Adding to this, most of the oxidizing acids are also resisted by ASME SA193 B8 nuts.