Chemical Strengthening Soda-Lime Glass – Soda-Lime Glass (CTE 9.0 x 10^-6 /K, 360 nm – 2.0 um); CS > 600 MPa, DoL 8 – 40 um. No minimum order; DFM review included with every RFQ.
chemical strengthening soda-lime glass is potassium ion exchange applied by KNO3 salt bath, 380 – 450 C. On Soda-Lime Glass it 4 – 8x bend strength on thin covers – the specification we run to is CS > 600 MPa, DoL 8 – 40 um.
The numbers
| Material | Soda-Lime Glass (Float per ASTM C1036, low-iron option) |
|---|---|
| Thermal expansion (CTE) | 9.0 x 10^-6 /K |
| Service temperature | 350 C continuous |
| Transmission range | 360 nm – 2.0 um |
| Density | 2.50 g/cm3 |
| Knoop hardness | 585 kg/mm2 |
| Refractive index | 1.52 @ 587 nm |
| Stock thickness | 0.40 – 19 mm |
| Maximum blank size | 1,000 x 800 mm |
| Treatment | Chemical Strengthening – potassium ion exchange |
| Specification | CS > 600 MPa, DoL 8 – 40 um |
| Deposition / method | KNO3 salt bath, 380 – 450 C |
| RFQ inputs | PDF/DXF/STEP drawing, quantity brackets, surface and edge spec |
Getting the drawing right
Three items decide most of the cost and lead time on this work:
- Material note: higher CTE means edge chips propagate under thermal load, so edge finishing quality drives reliability.
- Sequence matters: all machining happens before chemical strengthening; 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.
For the complete framework, see the tolerance design guide and the holes and edges design guide.
Process window
Beyond this page, Soda-Lime Glass routinely runs through lapping, dicing, etching, sandblasting in our shop – most real parts combine two or three of these steps.
Who orders this
chemical strengthening soda-lime glass shows up across led packaging (groove covers, phosphor carriers, package windows); industrial displays (touch covers, gauge windows, printed bezels). Background reading on the underlying material science: ASTM C1036 flat glass standard.
The fastest route to a quote is geometry: use the 3D builder below, draw a dimensioned 2D drawing from it, or open the site-wide custom glass machining 3D + 2D builder for fully custom parts.
Engineers scoping this work usually also review perforated quartz plates, glass-bottom microplates, JGS1 quartz glass.
Common questions
Is there a minimum order for chemical strengthening soda-lime 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.
Do parts ship with inspection data?
Dimensional reports, surface certificates and material certs per melt are available; specify the level on the RFQ.
Specifications on this page were last reviewed by our engineering team in September 2026.