SA193M B16 Stud bolt Manufacturer
ASTM A193 Grade B16 is a high-strength chromium-molybdenum-vanadium (Cr-Mo-V) alloy steel ,Stud bolt made of B16 grade is widely used for high-temperature and high-pressure applications
Alloy ASTM A193 Grade B16 is a bolting specification for high temperature service. It is a heat treated Chromium-Molybdenum-Vanadium steel.
A193 B16 Fasterners Specification
- Standard: ASTM A193
- Grade: B16
- Material: Chromium-Molybdenum-Vanadium Alloy Steel
Chemical Composition of B16 Bolt according to ASTM A193
| Carbon | Manganese, max | Phosphorus, max | Sulfur, max | Silicon | Chromium | Molybdenum | Vanadium | Aluminium |
|---|---|---|---|---|---|---|---|---|
| 0.36 – 0.47 | 0.45 – 0.70 | 0.035 | 0.040 | 0.15 – 0.35 | 0.80 – 1.15 | 0.50 – 0.65 | 0.25 – 0.35 | 0.015 max |
A193 B16 stud bolt Mechanical Property and hardess requirement
| Diameter | Tensile Strength, Min | Yield Strength, Min | Elongation, Min | Reduction, Min | Hardness, Max |
|---|---|---|---|---|---|
| Over M64 to M100 | 760 MPa | 655 MPa | 17 % | 45 % | 321 HBW or 35 HRC |
| Over M100 to M180 | 690 MPa | 585 MPa | 16 % | 45 % | 321 HBW or 35 HRC |
B16 Stud Bolt Dimensions & Thread Standards
- Thread Type: UNC (Coarse), UNF (Fine), Metric (ISO)
- Thread Standard: ASME B1.1 (Inch), ASME B1.13M (Metric)
- Stud Bolt Dimensions: ASME B18.2.1 / B18.31.2
- Compatible Nuts: ASTM A194 Grade 4 or A194 Grade 7
- Type : Full threads, Partial Threads, and customized as per requirements.
- SIZE : Nom Dia: ¼ to 4″ [6-100 mm]
ASTM A193 Grade B16 stud bolt Heat Treatment
Quenched & Tempered at 860º C minimum.
Typical Description of SA193M B16 Stud bolt
ASTM A193/A193M and ASME SA193/SA193M; B16
• Thread Requirements: ASME B1.1, 2A
– UNC for all stud diameters 1” and smaller
– UN8 for all stud diameters greater than 1”
STUD BOLT, 2” x 670mm UN 8 STUD, WITH TWO HEAVY HEX NUTS;ASSEMBLED; ALLOY
STEEL, ASTM A194 GRADE 7 HEAVY HEX NUTS
Surface Treatment Options
Blacken
PTFE/Xylan Coating
Applications of ASTM A193 B16 Stud Bolts
High-temperature and high-pressure applications (high temperature service. (-50° to 1100° )
Petrochemical & Refinery Equipment
Power Plants (Steam Turbines, Boilers)
Oil & Gas Pipelines & Processing Units
Difference between ASTM A193 B16 and B7 Stud Bolts
ASTM A193 Grade B16 and Grade B7 are both high-strength alloy steel fasteners used in high-pressure and high-temperature applications. However, they differ in terms of chemical composition, mechanical properties, temperature resistance, and applications.
ASTM A193 B16 vs. B7
| Feature | ASTM A193 B7 | ASTM A193 B16 |
|---|---|---|
| Material | Chromium-Molybdenum Steel | Chromium-Molybdenum-Vanadium Steel |
| Tensile Strength | 125 ksi | 125 ksi |
| Yield Strength | 105 ksi | 105 ksi |
| Max Operating Temperature | 900°F (482°C) | 1100°F (593°C) |
| Corrosion Resistance | Moderate | Moderate |
| Best for | High-pressure applications | High-temperature & high-pressure applications |
| Compatible Nuts | ASTM A194 2H | ASTM A194 4 or 7 |
