JB/T 51112-1999

Quality grading for agricultural machinery castings

Quality grading for agricultural machinery castings

Standard Type
JBT
ICS
25.020
CCS
J31
Status
N/A
Issue Date
1999-12-30
Implementation
2000-06-01
Centralized Committee
National Foundry Standardization Committee
Issuing Authority
State Bureau of Machinery Industry

Catalogue

Appearance, Material, Defect Grading

Scope

Castings incoming inspection and grading

Applicable to ferrous metal castings for agricultural machinery

Keywords

Castings porosity sand inclusion mechanical property

Application Summary AI generated

1. Graded by porosity and sand inclusion defects

2. Controls mechanical and metallographic structure

3. Clear appearance acceptance standard.

Standard Timeline

replaces 51112.3-94
replaces JB/T 51112.1

Related Standards

JB/T 51139-1999 Product quality grading of agricultural housing casting GB/Z 28283-2012 Guide for simulation and modeling of thermal processing GB/T 5611-1998 Foundry terminology GB/T 6060.1-1997 Roughness comparison specimens--Cast surfaces GB/T 16743-1997 Blanking clearance GB/T 15055-2007 Permissible stamping variations in dimensions without tolerance indication GB/T 22124.1-2008 Equipment manufacturing oriented product life-cycle technology knowledge - Part 1: Classification of general manufacturing technology GB/T 24738-2009 Completeness of machine-building technological documentation

Content extracted by AI. Not officially verified.