UGIMA® 4028/UGI® 4028

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In the treated state, a martensitic grade combining excellent mechanical properties with good corrosion resistance on suitably polished surfaces in moderately aggressive non-chlorinated environments. UGIMA® grade produced according to an Ugitech process to significantly improve its machinability (15% to 25% increase in productivity), up to diameter 115 mm.

Related Standards

Equivalent Materials

This material data has been provided by Ugitech SA.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

Ashby charts


Chemical properties



0.30000000000000004 %

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13.0 %

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Technological properties

Application areas

Moulds for PVC products and glassware. Mechanical engineering, transport, electronic equipment, decoration and household appliances, cutlery: shafts, pistons, liners, valves, nuts and bolts, etc. Cutting tools.

Corrosion properties

Atmospheres, fresh waters (check water analysis). Oxidizing saline solutions free of chlorides, fluorides, iodides, bromides, etc. Cold diluted nitric solutions. Certain cold diluted organic acids: picric, tannic, lactic, etc. Non-corrosive products such as: alcohol, benzol, petroleum, oil and soap.

Heat Treatment

Tempering curves on the right side of the material page.

Tempering temperature: Indicative mechanical properties after quenching in oil at 950°C and tempering for 2 hours.


Available products:

BarRoundRolled and descaled bars12 to 1322 to 15 mm
RoundTurned and polished9 to 1122 to 115 mm
RoundDrawn bar8 to 93 to 55 mm
RoundGround bar6 to 93 to 80 mm
HexagonalDrawn bar113 to 55 mm
Wire rodRoundPickled5.0 to 32 mm
Drawn wireRound16.0 to 1.0 mm

Other products: contact the supplier