Studs, Corrosion and Heat Resistant Steel, UNS S66286 Tensile Strength 900 MPa, Procurement Specification, Metric
MA3375C
This document covers metric studs made from a corrosion and heat resistant, age hardenable iron base alloy of the type identified under the Unified Numbering System as UNS S66286. The following specification designations and their properties are covered:
MA3375 900 MPa minimum ultimate tensile strength at room temperature
MA3375-1 900 MPa minimum ultimate tensile strength at room temperature
480 MPa stress-rupture strength at 650 °C
MA3375-2 900 MPa minimum ultimate tensile strength at room temperature
590 MPa minimum ultimate shear strength at room temperature
Rationale: To revise paragraph 3.6 by adding “two to” three threads in agreement with NASM1312 test methodology and general updating of specifications and SAE formatting requirements.