Premium ASTM A193 B16 Bolts, Studs & Fasteners Supplier & Exporter
Heat-treated alloy steel fasteners with remarkable strength and longevity in high-temperature and high-pressure settings are what make ASTM A193 Grade B16 bolts so special. These bolts are frequently employed in sectors where dependable fastening in harsh environments is essential, like oil and gas, power generating, and construction. Outstanding tensile strength, toughness, and resistance to thermal stress are features of ASTM A193 B16 bolts, which are made of chromium, molybdenum, and vanadium alloy steel. They go through extensive testing to make sure they meet ASTM requirements, which ensures dependability and security in demanding situations. ASTM A193 Grade B16 bolts offer reliable and long-lasting fastening solutions for vital equipment and infrastructure because of their exceptional mechanical qualities.
Quick Section Links
- What Are A193 B16 Fasteners?
- Types of A193 B16 Fasteners We Supply
- ASTM A193 B16 Bolts Specifications
- ASTM A193 B16 Bolts Chemical Composition
- ASTM A193 B16 Bolts Mechanical Properties
- Equivalent Grades for ASTM A193 B16
- ASTM A193 GR.B16 Bolts Standard
- Dimensions Of ASTM A193 B16 Bolts
- ASTM A193 B16 Bolts Weight Chart
- ASTM A193 B16 Bolts Inventory
- Applications of ASTM A193 B16 Bolts
What Are A193 B16 Fasteners?
ASTM A193 B16 fasteners are high-tensile strength bolts, studs, and threaded rods made from a Chromium-Molybdenum-Vanadium (Cr-Mo-V) alloy steel corresponding to UNS K12822. ASTM A193 B16 is also referred to as ASTM A193 B16 Alloy Steel Fasteners. This grade is designed for better strength retention and creep resistance at elevated temperatures than the more general B7 grade for services over 450°C (840°F).
The material is heat-treated by a mandatory quench and temper procedure before it can attain its specified mechanical properties. The addition of Vanadium is the critical ingredient that increases strength at elevated temperatures, along with A193 B16 high-temperature bolts. These fasteners are designed to meet the important service and restraint on high-heat connections; whereas in-service crane turbine casing could require hundreds of grade B16 bolts or studs.
Types of A193 B16 Fasteners We Supply
ASTM A193 B16 Socket Heads
ASTM A193 B16 Double End Studs
ASTM A193 B16 CSK Screws
ASTM A193 B16 Set Screws
ASTM A193 B16 Stud Bolts
ASTM A193 B16 Hex Bolts
ASTM A193 B16 Anchor Rods
ASTM A193 B16 Threaded Rod
ASTM A193 B16 Round Bars
ASTM A193 B16 Heavy Hex Bolts
ASTM A193 B16 U Bolts
ASTM A193 B16 Bolts Specifications
| Specification | ASTM A193 / ASME SA193 Grade B16 |
| UNS Number | K12822 |
| Dimensions | ASME B18.2.1, B18.3, B18.2.2 |
| Threads Configuration | ASME B1.1 2A/3A Unified Inch Threads & B1.13M 6h Metric Coarse Threads |
| Product Origin | Indian Origin, European Origin, US Origin |
| Certification | Mill Test Certificate as per EN 10204 3.1, PED 97/23/EC, AD 2000 W2 |
| Additional Compliance | NACE MR0175 / ISO 15156, NACE MR0103 |
| Mandatory Testing | Free from Mercury & Radioactive Contamination |
| Product Types | Bolts, Studs, Screws, Threaded Rods, Anchor Bolts, U-Bolts |
ASTM A193 B16 Bolts Chemical Composition
| Grade | C | Mn | P | S | Si | Cr | V | Mo |
| B16 | 0.36 – 0.44 | 0.45 – 0.70 | 0.035 max | 0.040 max | 0.15 – 0.35 | 0.80 – 1.15 | 0.25 – 0.35 | 0.50 – 0.65 |
ASTM A193 B16 Mechanical Properties
| Bolt Diameter (in) | Tensile Strength (ksi), min | Yield Strength (ksi), min | Elongation (%), min | Reduction of Area (%), min | Hardness, max |
| Up to 2-1/2 | 125 | 105 | 18 | 50 | 321 HB or 35 HRC |
| Over 2-1/2 to 4 | 110 | 95 | 17 | 45 | 321 HB or 35 HRC |
| Over 4 to 8 | 100 | 85 | 16 | 45 | 321 HB or 35 HRC |
Equivalent Grades for ASTM A193 B16
| Property | Value |
| Standards | ASME SA193 Gr. B16 |
| Designation | UNS K12822 |
ASTM A193 GR.B16 Bolts Standard
| Product | Imperial (ASME) | Metric (ISO/DIN) |
| Hex Bolts | B18.2.1 | ISO 4014 / DIN 931 |
| Heavy Hex Bolts | B18.2.1 | – |
| Hex Cap Screws | B18.2.1 | ISO 4017 / DIN 933 |
| Socket Head Cap Screws | B18.3 | ISO 4762 / DIN 912 |
| Stud Bolts | B18.31.2 | DIN 976 |
| Heavy Hex Nuts | A194 Gr 16 / B18.2.2 | – |
Dimensions Of ASTM A193 B16 Bolts
| **All measurements in millimeters** | ||||||||
| NOMINAL SIZE (D) | BODY DIAMETER | HEAD tdICKNEASTM A193 | ACROASTM A193 tdE 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 |
“Contact Jade Special Metals today with your requirement for ASTM A193 B16 Bolts. We assure you of the best quote.
ASTM A193 B16 Bolts Weight Chart
| MM tdREADS AS PER IS 1363/67 | ||||||||||
| APPROXIMATE WEIGHT IN KGS FOR 100 NOS | ||||||||||
| LENGtd | DIAMETER | |||||||||
| M 5 | M 6 | M 8 | M 10 | M 12 | M 14 | M 16 | M 18 | M 20 | M 22 | |
| 16 mm | 0.448 | 0.743 | 1.590 | 3.211 | ||||||
| 20 mm | 0.598 | 0.812 | 1.711 | 3.411 | 4.892 | |||||
| 25 mm | 0.660 | 0.897 | 1.871 | 3.660 | 5.252 | 8.170 | ||||
| 30 mm | 0.737 | 1.010 | 2.070 | 3.912 | 5.574 | 9.690 | 10.707 | 18.657 | ||
| 35 mm | 0.804 | 1.120 | 2.271 | 4.223 | 5.974 | 10.000 | 11.416 | 16.026 | 19.608 | |
| 40 mm | 0.881 | 1.230 | 2.470 | 4.533 | 6.410 | 10.288 | 12.107 | 16.667 | 20.747 | |
| 45 mm | 0.958 | 1.340 | 2.671 | 4.840 | 6.859 | 10.504 | 12.821 | 17.241 | 21.739 | |
| 50 mm | 1.030 | 1.450 | 2.870 | 5.155 | 7.299 | 11.261 | 13.624 | 17.857 | 22.727 | 28.409 |
| 55 mm | 1.560 | 3.071 | 5.464 | 7.740 | 11.628 | 14.409 | 18.868 | 23.810 | 30.120 | |
| 60 mm | 1.670 | 3.270 | 5.774 | 8.183 | 12.255 | 15.244 | 20.000 | 25.126 | 32.051 | |
| 65 mm | 1.781 | 3.472 | 6.083 | 8.621 | 12.626 | 16.026 | 21.008 | 26.455 | 34.014 | |
| 70 mm | 1.890 | 3.671 | 6.394 | 9.058 | 12.987 | 16.835 | 22.124 | 27.778 | 35.461 | |
| 75 mm | 2.000 | 3.873 | 6.702 | 9.506 | 13.228 | 17.606 | 23.256 | 29.070 | 39.063 | |
| 80 mm | 2.111 | 4.072 | 7.013 | 10.000 | 13.889 | 18.248 | 24.510 | 30.303 | 40.000 | |
| 90 mm | 4.472 | 7.634 | 10.917 | 14.925 | 19.841 | 26.042 | 33.113 | 41.667 | ||
| 100 mm | 4.873 | 8.251 | 11.820 | 16.340 | 21.459 | 27.778 | 35.714 | 46.296 | ||
| 110 mm | 8.881 | 12.723 | 17.730 | 23.041 | 31.250 | 38.168 | 47.170 | |||
| 120 mm | 9.506 | 13.624 | 18.797 | 24.631 | 32.895 | 40.984 | 50.000 | |||
| 130 mm | 10.101 | 14.535 | 20.000 | 26.316 | 34.722 | 43.478 | 52.632 | |||
| 140 mm | 10.707 | 15.432 | 20.833 | 27.933 | 35.461 | 46.296 | 55.556 | |||
| 150 mm | 11.312 | 16.340 | 22.222 | 29.412 | 37.594 | 48.544 | 58.824 | |||
| 160 mm | 11.905 | 17.241 | 24.272 | 31.056 | 40.984 | 50.505 | 61.728 | |||
| 170 mm | 12.500 | 18.116 | 32.680 | 53.191 | 64.935 | |||||
| 180 mm | 13.123 | 19.011 | 26.882 | 34.247 | 55.556 | 67.568 | ||||
| 190 mm | 13.736 | 19.920 | 35.971 | 58.140 | 70.423 | |||||
| 200 mm | 14.327 | 20.833 | 29.586 | 37.594 | 49.020 | 60.976 | 73.529 | |||
| 220 mm | 15.528 | 22.624 | 40.650 | 65.789 | 79.365 | |||||
| 240 mm | 16.722 | 24.510 | 43.860 | 71.429 | 84.746 | |||||
| 250 mm | 17.301 | 25.381 | 45.455 | 74.627 | 87.719 | |||||
| 260 mm | 17.921 | 26.316 | 47.170 | 76.923 | 90.909 | |||||
| 280 mm | 19.157 | 28.090 | 50.505 | 81.967 | 98.039 | |||||
| 300 mm | 20.325 | 29.940 | 53.763 | 87.719 | 104.167 | |||||
| 320 mm | 31.646 | 56.818 | 92.593 | |||||||
| 340 mm | 33.557 | 60.241 | 98.039 | |||||||
| 360 mm | 35.211 | 63.291 | 104.167 | |||||||
| 380 mm | 37.037 | 66.667 | 108.696 | |||||||
| 400 mm | 39.063 | 69.444 | 113.636 | |||||||
ASTM A193 B16 Bolts Inventory
ASTM A193 B16 Bolts
ASTM A193 B16 Stud Bolts
ASTM A193 B16 Hex Bolts
Applications of ASTM A193 B16 Bolts
The superior strength and heat resistance of A193 B16 High-Temperature Bolts make them essential for safety-critical systems in various industries:
Oil and Gas: Used in upstream, midstream, and downstream operations for high-pressure flanges, wellhead equipment, and pressure vessels.
Power Generation: Ideal for steam turbines, boilers, heat exchangers, and other high-temperature equipment in fossil fuel and nuclear power plants.
Petrochemical & Refineries: Essential for reactors, piping systems, and process equipment handling corrosive media at elevated temperatures.
Valves & Pumps: The high-tensile properties ensure leak-free performance in critical service valves and high-pressure pump casings.
Heavy Engineering: Employed in heavy-duty machinery and structural applications requiring robust, heat-resistant connections.
Why Choose Jade Alloys for A193 B16 Fasteners?.
- Extensive Stock: We have a large stock of ASTM A193 B16 Hex Bolts, Stud Bolts, and Threaded Rods at various sizes available for immediate shipping, and to help shorten project lead times.
- Global Exporter: With previous experience superseding clients globally, we will also manage all of the logistical and documentation requirements, to make your procurement process as seamless as possible.
- Unmatched Quality: Our A193 B16 bolting material is from reputable mills and all A193 B16 material go through rigorous in-house testing to ensure conformity via the relevant international standards. All orders are supplied with MTCs.
- Competitive Price: As a direct manufacturer and high stockholder, we offer the best pricing on all A193 B16 Fasteners.
- Custom Manufacturing: If necessary, we could consider manufacturing custom bolts and fasteners, i.e. non-standard lengths and head styles.
Related Products
ASTM A193 B16 fasteners are a specialized part of our high-performance bolting portfolio, engineered for the most demanding high-temperature applications. Explore our full range of related products to complete your project requirements:
Get a Competitive Price & Quote for Your ASTM A193 B16 Bolts
As a top manufacturer and direct supplier, Jade Special Metals has a definitive advantage to procure your A193 B16 High-temperature Fasteners. We produce and manage our manufacturing internally, which will translate into a highly competitive price due to less markups.
Your order total cost is based on your project requirements. Pricing for ASTM A193 B16 Bolts will vary based on dimensions, quantity per order, and any protective coatings required (like PTFE or Black oxide). For this reason, Jade Special Metals provides a custom quote to ensure you receive the most accurate and fair pricing.
Ready to secure the highest quality fasteners for your project? Contact our expert sales team today for a fast, no-obligation quote. Let us know your requirements—such as product type, size, and quantity—and we will provide a detailed proposal. We are committed to delivering certified A193 B16 Fasteners on-time and at the best possible value.
FAQ’s About ASTM A193 B16 Bolts
What is A193 gr B16 material?
ASTM A193 B16 is a high-tensile, heat-treated Chromium-Molybdenum-Vanadium (Cr-Mo-V) alloy steel. It is a bolting specification specifically engineered for high-pressure and high-temperature service, retaining its strength and resisting creep at temperatures up to 1000°F (540°C).
What is ASTM A193 B16 equivalent to?
ASTM A193 B16 is best understood as a higher-temperature alternative to Grade B7, rather than a direct equivalent.
What is the difference between B16 and B7 bolts?
The primary difference is the material composition. While both are chromium-molybdenum based, A193 B16 contains added Vanadium. This key difference gives B16 superior strength and reliability at the very high temperatures where Grade B7 would begin to lose its mechanical properties.
What is the hardness of astm A193 Grade B16?
The maximum allowable hardness for an A193 Grade B16 fastener is 35 on the Rockwell C scale (35 HRC). This ensures the material maintains the proper balance of strength and ductility.
Is B16 stronger than B7?
At room temperature, their minimum strength requirements are very similar. However, B16 is considered functionally stronger because it retains its strength at much higher temperatures (up to 1000°F / 540°C). This makes it the superior choice for critical applications like steam turbines and high-heat pressure vessels.
What is the yield strength of a B16 bolt?
For diameters up to 2.5 inches, an ASTM A193 B16 bolt has a minimum yield strength of 105,000 psi (105 ksi or 725 MPa). This high yield strength ensures the bolt can withstand extreme loads without permanent deformation.
