What is ASTM A193 Grade B16?
Alloy ASTM A193 Grade B16 is a bolting specification for high temperature service. It is a heat treated Chromium-Molybdenum-Vanadium steel. The specification calls for minimum strength and maximum hardness levels. It is considered to be most suitable for bolts used at temperatures below 840°F or 450° C.
What is the difference between A193 and A194?
ASTM A193 Grade B8M Class 1 fasteners require a carbide solution treatment, while Class 2 fasteners require an additional strain hardening just like B8 fasteners. ASTM A194 GRADE 8M Stainless steel nuts are required for these fasteners.
What is B16 material?
B16 alloy steel bar is a chromium, molybdenum, vanadium alloy steel widely used for high strength industrial applications. It is commonly used in power generation turbines in high strength fastener applications such as bolt material.
What does ASTM A193 mean?
ASTM A193 Grade B7 specification covers requirements for high tensile alloy steel bolting material for use in high temperature or high-pressure service and other special purpose applications.
Is B16 stainless steel?
Unlike the stainless steel grades within the A193 specification, Grade B16 has no corrosion-resistant properties unless they are coated.
What is the difference between B7 and B16 bolts?
The “big brother” of B7 studs, B16 studs are found in similar situations, but are specified when a higher temperature is required. Vanadium is the main composition difference that separates B16 from B7, allowing the higher temperature limits.
Is B8M the same as 316?
A193 Grade B8M is chemically equivalent to AISI 316/316L stainless steel with improved strength, categorized in two different tensile classes namely class 1 and class 2.
What is the yield strength of B16 studs?
725
Grade B16 is a heat-treated chromium-molybdenum-vanadium (Cr-Mo-V) alloy steel with maximum tensile strength of 860 MPa, yield 725, and 35HRC hardness. ASTM A193 grade B16 is similar to grade B7 but the addition of vanadium enhances its strength holding capacity at high temperatures.
What grade is B8M?
ASTM A193 Grade B8M
| Grade | Tensile Class | Raw Material Description |
|---|---|---|
| B8M | Class 1 | AISI 316 Stainless Steel, Carbide Solution Treated |
| B8M | Class 2 | AISI 316 Stainless Steel, Carbide Solution Treated and Strain Hardened |
What is the yield strength of a B16 stud?
What is ASTM A193 grade B16?
ASTM A193 Grade B16 is a standard material specification under ASTM A193 for alloy steel fasteners, for use in high tensile, high temperature and special purpose applications.Grade B16 is a heat-treated chromium-molybdenum-vanadium (Cr-Mo-V) alloy steel with maximum tensile strength of 860 MPa, yield 725, and 35HRC hardness.
What is the co-efficient of thermal expansion for ASTM A193 grade B16 bolting?
Co-efficient of thermal expansion for ASTM a193 grade b16 bolting is approximately 7.5 x 10^6. Bolts and other fasteners can be marked with manufacturer’s identity mark “BPF” followed by “B16”.
What is Grade B16 fastener?
Fasteners produced under ASTM A193 Grade B16 standard are mainly used for power generation and allied sectors. Grade B16 is specified for bolts, studs, stud bolts, threaded rods, screws, bar stock and similar parts, intended for use in bolting applications.
What is ASME A193 fastener?
The ASME A193 designation covers fasteners intended for use in pressure vessels, valves, flanges, and fittings. The addition of vanadium makes this heat treated chromoly steel (AISI 4140) particularly resilient in high temperature environments.