使用系统的计算机统计数据拟合方法，收集和分析了目前生产和用于炼油厂加热器应用的合金的机械性能数据。报告的每种材料的性能包括高温屈服强度和拉伸强度、最小和平均应力断裂强度以及温度下的应力断裂指数。只要可能，收集的数据都代表了现代生产方法生产的材料。分析结果是使用多项式方程表示的，其应力和温度依赖于性能。应力断裂试验结果用于根据每种合金的优化常数建立Larson-Miller参数关系。 每种合金的参数图将API Std 530中显示的性能与当前分析中获得的性能进行比较。材料包括:低碳钢和中碳钢；碳-0.5 Mo钢；1.25 Cr-0.5 Mo钢、2.25 Cr-1 Mo、3 Cr-1 Mo钢和5、7和9 Cr-Mo钢、9 Cr-1 Mo-V钢和合金115（10.5Cr-V）；304、304L、304H、316、316L、316H、317L、321、321H、347、347H、347AP和高级347AP不锈钢；800、800H和800HT合金；和HK-40。在本卷的初始章节中，提供了示例，演示了多项式方程在常见问题中的应用，如确定温度下的设计寿命和设计许用应力。

Mechanical property data for alloys currently produced and used for petroleum refinery heater applications have been gathered and analyzed using systematic computerized statistical data fitting methods. Properties reported for each material are elevated temperature yield and tensile strengths, minimum and average stress-rupture strengths, and stress-rupture exponent at temperature. Whenever possible data gathered were representative of materials produced by modern production methods. The results of the analyses were presented using polynomial equations for stress and temperature dependence of the properties. Stress-rupture test results were used to develop Larson-Miller Parameter relations based on optimized constants for each alloy. Parameter plots for each alloy compare the properties shown in API Std 530 with those obtained from the current analyses. Materials included are: Low and Medium Carbon steels; Carbon-0.5 Mo steel; 1.25 Cr-0.5 Mo steel, 2.25 Cr-1 Mo, 3 Cr-1 Mo steel and 5, 7 and 9 Cr-Mo steels, 9 Cr-1 Mo-V steel and Alloy 115 (10.5Cr-V); Types 304, 304L, 304H, 316, 316L, 316H, 317L, 321, 321H, 347, 347H, 347AP, and Advanced 347AP stainless steels; Alloys 800, 800H and 800HT; and HK-40. In the initial sections of this volume examples are provided demonstrating application of the polynomial equations to common problems such as determining design life at temperature and design allowable stress.