本文件涵盖由耐腐蚀、耐热、可时效硬化的镍基合金制成的公制螺栓和螺钉，该合金的类型在统一编号系统UNS N07718中确定。包括以下规格名称及其性能:MA3377:1275 MPa室温下的最小极限抗拉强度；650℃时的最小极限抗拉强度为1000 MPa；650℃时690 MPa的应力断裂强度；室温下720 MPa拉伸至72 MPa拉伸疲劳3377-1:1275 MPa室温下最小极限拉伸强度；室温下的最小极限抗剪强度为765 MPa；室温下720 MPa拉伸至72 MPa拉伸疲劳。

This document covers metric bolts and screws made from a corrosion and heat resistant, age hardenable nickel base alloy of the type identified under the Unified Numbering System as UNS N07718. The following specification designations and their properties are covered:MA3377: 1275 MPa minimum ultimate tensile strength at room temperature; 1000 MPa minimum ultimate tensile strength at 650 Degrees C; 690 MPa stress-rupture strength at 650 Degrees C; 720 MPa tension to 72 MPa tension fatigue at room temperatureMA3377-1: 1275 MPa minimum ultimate tensile strength at room temperature; 765 MPa minimum ultimate shear strength at room temperature; 720 MPa tension to 72 MPa tension fatigue at room temperature.