
Tempered Glass vs. Regular Glass: A Safety Showdown
When safety matters, glass choice becomes critical. Here’s how tempered glass outshines ordinary annealed glass in protecting lives:
1. Breakage Behavior (The Critical Difference)
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Tempered Glass: Shatters into blunt 5-10mm cubes (EN 12150 standard)
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Regular Glass: Splinters into dagger-like shards with 20° sharp edges
Data: Tempered glass reduces laceration injuries by 90% (OSHA)
2. Impact Resistance
Test | Tempered Glass | Regular Glass |
---|---|---|
227g steel ball drop | 2m height (pass) | 0.5m height (fail) |
Wind pressure | Resists 150km/h winds | Cracks at 80km/h |
Key Fact: Tempered surface compression (10,000+ psi) makes it 4-5x stronger
3. Thermal Stress Performance
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Tempered: Handles ΔT≥150°C (oven doors, skyscrapers)
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Regular: Fails at ΔT>40°C (shower doors often crack)
4. Special Safety Features
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Car Side Windows: Tempered glass crumbles for emergency exits
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Balcony Railings: Withstands 500kg impacts when laminated
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Fire Resistance: Some tempered variants survive 1,000°C for 2 hours
When Regular Glass Still Works
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Picture frames (low risk)
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Cabinet doors (non-load bearing)
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Temporary structures
Life-Saving Tip: Look for the tempering stamp (usually etched in corners) for certified safety glass.
From hurricane-proof facades to smartphone screens, tempered glass proves that modern safety doesn’t mean compromising clarity. It’s not just glass—it’s an invisible shield!
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Xinxiang Pan Chao Instruments Co., Ltd.
Tel: +86 13343800331
Contact person:Carrie Niu
Fax: 0373 303 0331
Email:sales@panchaoglass.com