SGS Test Report for Grade 12.9 Bolts

SGS Test Report for Grade 12.9 Bolts

SGS Test Report for Grade 12.9 Bolts

This page provides the full SGS certification test results for Grade 12.9 wheel bolts (material SCM440). The tests include chemical composition analysis, hardness, decarbonization, proof load verification, wedge loading, and fatigue//limited lifespan testing.


πŸ“Œ Test Categories

  • Chemical Composition Analysis
  • Decarbonization & Decarburization Tests
  • Hardness Test
  • Verification Load Test
  • Wedge Load Test
  • 1 Million Cycles Fatigue/Limited Lifespan Test
  • 2 Million Cycles Fatigue/Limited Lifespan Test

πŸ“„ Chemical Composition Test

SCM440 chemical composition result according to SGS standards.

Chemical Composition 1

Chemical Composition 2


πŸ“„ Decarbonization Test

Decarbonization Test 1

Decarbonization Test 2

Decarbonization Test 3


πŸ“„ Decarburization Extended Test

Decarburization 1

Decarburization 2

Decarburization 3


πŸ“„ Hardness Test

Hardness Test 1

Hardness Test 2


πŸ“„ One Million Finite Lifespan/Limited Lifespan Test

1 Million Cycles Test 1

1 Million Cycles Test 2


πŸ“„ Two Million Finite Lifespan/Limited Lifespan Test

2 Million Cycles Test 1

2 Million Cycles Test 2


πŸ“„ Verification Load Test

Verification Load Test 1

Verification Load Test 2

Verification Load Test 3


πŸ“„ Wedge Load Test

Wedge Load Test 1

Wedge Load Test 2

Wedge Load Test 3


πŸ“Œ Conclusion

The Grade 12.9 SCM440 wheel bolts successfully passed all SGS certified tests:

  • Chemical composition within SCM440 standards
  • No decarburization issues
  • Hardness meets Grade 12.9 requirement
  • Verification load test passed
  • Wedge load test passed
  • 1 million fatigue/limited lifespan cycles passed
  • 2 million fatigue/imited lifespan cycles passed

Please contact us for additional information or customized testing requirements.

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