Thermal Tempering Glass: surface compression > 69 MPa per ASTM C1048. Single-piece prototypes to production volumes, quoted from your drawing.
thermal tempering glass is full thermal temper applied by furnace + air quench, >3 mm parts. On the substrate you specify it safety-glass fracture and 4x strength – the specification we run to is surface compression > 69 MPa per ASTM C1048.
Specification envelope
| Treatment | Thermal Tempering – full thermal temper |
|---|---|
| Specification | surface compression > 69 MPa per ASTM C1048 |
| Deposition / method | furnace + air quench, >3 mm parts |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
DFM notes from the shop floor
The shop-floor rules that matter here:
- Sequence matters: all machining happens before thermal tempering; post-coating rework is not economical.
- Over-specification is the quiet budget killer: a 20/10 scratch-dig face costs roughly three times an 80/50 face, so grade each surface individually.
The full rules live in our tolerance design guide and holes and edges design guide.
Typical applications
Orders for thermal tempering glass cluster in mems devices (cap wafers, TGV substrates, motion-sensor lids); industrial displays (touch covers, gauge windows, printed bezels); laboratory instruments (cuvettes, sight glasses, stir-cell windows). Background reading on the underlying material science: ASTM C1048 heat-treated glass.
Dimensions still moving? Configure this part live in the 3D + 2D builder below, or open the full custom glass machining 3D + 2D builder to start from a blank canvas.
Useful companion pages: high-purity quartz guide, fused silica wafers 2-12 inch, glass wafer bonding.
Common questions
Do parts ship with inspection data?
Dimensional reports, surface certificates and material certs per melt are available; specify the level on the RFQ.
What does thermal tempering add?
Safety-glass fracture and 4x strength. Applied by furnace + air quench, >3 mm parts to surface compression > 69 MPa per ASTM C1048.
Is there a minimum order for thermal tempering glass?
No. Single prototypes are accepted, and pricing steps down at 10, 100 and 1,000 pieces.
How fast can prototypes ship?
Machined prototypes ship in 5 – 10 working days. Coated or bonded parts add 1 – 2 weeks depending on queue slots.
What files do you need for a quote?
A dimensioned PDF plus DXF or STEP geometry. If only a sketch exists, our drawing review service formalizes it before quoting.
Specifications on this page were last reviewed by our engineering team in September 2026.