Api610 Pump Material Code Definition And Classification

The API610 standard provides detailed material specifications for the design and manufacture of pumps to ensure their performance and reliability. Material codes are used to identify the materials used in various parts of the pump, including shaft sleeves, throat bushings, throttle bushings, casings, impellers, shafts, and so on. These codes reflect the type and grade of the materials, for example, certain codes may indicate the use of stainless steel materials (such as 316 stainless steel), while other codes may indicate the use of special alloys or other types of metals. Specifically:

API610 Material Code: C-6
Casing	1Cr13	Shaft sleeve	3Cr13	Impeller wear ring	3Cr13
Impeller	ZG1Cr13	Bushing		Casing wear ring	2Cr13
Shaft	2Cr13	Bushing

 

API Material Code：A-8
Casing	SS316	Shaft sleeve	SS316	Impeller wear ring	SS316
Impeller	SS316	Bushing		Casing wear ring	SS316
Shaft	0Cr17Ni4CuNb	Bushing

 

API Material Code：S-6
Casing	ZG230-450	Shaft sleeve	3Cr13	Impeller wear ring	3Cr13
Impeller	ZG1CCr13Ni	Bushing		Casing wear ring	1Cr13MoS
Shaft	42CrMo/3Cr13	Bushing

Specific application examples of pump material codes in API610

In practical applications, these material codes guide the pump design and manufacturing process. For example, for applications requiring high corrosion resistance, 316 stainless steel may be selected as the impeller and housing material; For scenarios requiring higher strength and wear resistance, special alloy steels such as 1Cr13 or ZG230-450 may be selected. These options ensure that the pump can operate safely and efficiently under specific operating conditions, while meeting performance and durability requirements.