JB/T 10078-2015Alloy strips for elastic sensitive elements of instruments (English PDF)

National Standard of the People's Republic of China

Replacing

JB/T 10078-1999

Issued by: Ministry of Industry and Information Technology of the People's Republic of China

Contents

• 1 Scope
• 2 Normative references
• 3 Classification, grades and codes
• 4 Technical requirements
• 4.1 Dimensions and limit deviations
• 4.2 Chemical composition
• 4.3 Mechanical and elastic properties
• 4.4 Surface quality
• 4.5 Shape
• 5 Test methods
• 6 Inspection rules
• 6.1 Classification of inspection
• 6.2 Factory inspection
• 6.3 Type inspection
• 6.4 Rules for forming a batch
• 6.5 Sampling method
• 6.6 Rules for judgement
• 7 Mode of supply, packaging, marking and quality certificate
• 7.1 Mode of supply
• 7.2 Packaging, marking and quality certificate
• Annex A (informative) Physical properties of the precision alloys
• Annex B (informative) Recommended heat treatment schedule for the alloy strips
• Annex C (informative) Condition and cold working ratio of the copper alloy strips
• Table 1 Classification, grades and codes
• Table 2 Dimensions and limit deviations
• Table 3 Main chemical composition of the alloys (mass fraction, %)
• Table 4 Mechanical and elastic properties of the alloys
• Table 5 Inspection items and test methods
• Table 6 Supply condition of the strips
• Table A.1 Physical properties of the precision alloys
• Table B.1 Recommended heat treatment schedule for the alloy strips
• Table C.1 Condition and cold working ratio of the copper alloy strips