GB/T 12227-2005
General purpose industrial valves.Specification of spheroidal graphite iron castings (English Version)

Standard No.

GB/T 12227-2005

Language

Chinese, Available in English version

Release Date

2005

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 12227-2005

Replace

GB/T 12227-1989

Scope

This standard specifies the technical requirements, test methods, inspection rules, marks, packaging and storage of general valve ductile iron castings. This standard applies to general valves, flanges, pipe fittings and other ductile iron castings under pressure (hereinafter referred to as castings).

GB/T 12227-2005 Referenced Document

• GB/T 1348 Spheroidal graphite iron castings*， 2019-12-31 Update
• GB/T 228 Metallic materials--Tensile testing at ambient temperature
• GB/T 229 Metallic materials—Charpy pendulum impact test method*， 2020-09-29 Update
• GB/T 231.1 Metallic materials—Brinell hardness test—Part 1: Test method*， 2018-05-14 Update
• GB/T 6060.1 Surface roughness comparison specimen—Part 1: Casting surface*， 2018-09-17 Update

GB/T 12227-2005 history

• 2005 GB/T 12227-2005 General purpose industrial valves.Specification of spheroidal graphite iron castings
• 1990 GB/T 12227-1989 Specifications for ductile iron castings for general valves