Miscellaneous

What is A193 material?

What is A193 material?

ASTM A193: “This specification covers alloy steel and stainless steel bolting material for pressure vessels, valves, flanges, and fittings for high temperature or high-pressure service, or other special-purpose applications.

Is ASTM A193 Grade B7 carbon steel?

A193 Grade B7 is the most commonly used Bolt specification coupled with A194 Grade 2H Nuts for Bolting Carbon Steel pipeline. Find information on ASTM A193 Grade B7 chemical composition, mechanical properties such as tensile strength; yield strength, hardness, marking requirements and reference product standards.

What is ASTM A320?

ASTM A320 is a standard material specification covering alloy and stainless steel bolting materials for pressure vessels, valves, flanges, and fittings for low temperature services. Supplementary requirements includes Impact properties and hardness testing of class 2 bolting materials for ASME applications.

Is L7 a carbon steel?

It is typically used for the manufacture of Bolts, Fasteners, Studs and Studbolts in the Petrochemical industry….Chemical Composition B7/L7.

Element B7 (AISI 4140) L7 (AISI 4140)
Carbon 0.37 – 0.49% 0.37 – 0.49%
Manganese 0.65 – 1.10% 0.65 – 1.10%
Phosphorus, max 0.035% 0.035%
Sulfur, max 0.040% 0.040%