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Ningbo Teng Qi Fasteners Co., Ltd is a leading a193 b16 stud bolts manufacturer in China. ASTM A193 Grade B16 stud bolts are high-strength, heat-treated fasteners used in a variety of applications, particularly those requiring elevated temperature and pressure resistance. A193 Grade B16 stud bolts are robust fasteners designed for use in demanding industrial settings where strength, heat resistance, and reliability are paramount. They are widely used in applications that involve extreme temperature and pressure conditions, such as those found in the oil and gas industry, power plants, and chemical processing facilities.

Specification of A193 B16 Stud Bolts:

ASTM A193 Grade B16 is a specific material grade for stud bolts, and it has associated specifications that outline its mechanical and chemical properties.

Product nameASTM A193 B16 Stud Bolts
Diameter1/4″ – 4″
Dimension StandardASME B18.31.2
Tension Strength125 KSI
Compatible nuts/washersA194 GR.4/GR7 Nuts
Manufacturing Processwire drawing, thread rolling, heat treatment, surface treatment
Surface treatmentBlack Oxide Coating/Zinc Plating (Electroplating)/Hot-Dip Galvanizing/Mechanical Galvanizing/Dacromet Coating/Painting or Powder Coating
Application IndustryPiping Systems/Pressure Vessels/Pressure Vessels/Oil and Gas Industry/Power Generation/Chemical Processing

Chemical Composition:

Material and heat treatmentChemical
composition limits
(cast analysis, %) a
A193 B16Alloy steel, AISI 4140/4142 quenched and temperedCarbonManganesePhosphorus, maxSulfur, maxSiliconChromiumMolybdenum
0.36 - 0.47%0.45 - 0.7%0.035%0.040%0.15 - 0.35%0.80 - 1.15%0.5-0.65%

 Mechanical and physical properties:

GradeSizeTensile ksi, minYield, ksi, minElong, %, minRA % minHBWRockwell
B16Up to 2-1/21251051850321 max35 HRC max
2-5/8 - 4110951745
4-1/8 - 7100851645

FAQ about A193 B16 Stud Bolts:

1.What is ASTM A193 Grade B16?

ASTM A193 Grade B16 is a high-strength alloy steel specification for stud bolts and other fasteners. It is known for its exceptional strength and heat resistance.

2.What applications are suitable for A193 B16 stud bolts?

A193 B16 stud bolts are commonly used in high-temperature and high-pressure applications, including those found in the petrochemical, power generation, and oil and gas industries.

3.What is the heat treatment process for A193 B16 stud bolts?

A193 B16 stud bolts undergo a heat treatment process, typically quenching and tempering, to achieve the desired mechanical properties, including high tensile strength and toughness.

4.Can A193 B16 stud bolts withstand high temperatures?

Yes, A193 B16 stud bolts are designed to maintain their structural integrity at elevated temperatures, making them suitable for applications with extreme heat.

5. Are A193 B16 stud bolts suitable for use in corrosive environments?

While A193 B16 stud bolts are known for their strength, they may require additional corrosion-resistant coatings or treatments when used in highly corrosive environments.