Professional Founders providing Air Set, Gravity Die, Green Sand and Machined Castings.

Operating from a purpose built foundry in Derbyshire, UK.

Contact Us

Arrow Butler Castings Ltd
Station Road
Chesterfield
Derbyshire
S41 9ES.

Tel: +44 (0)1246 450027

Email: castings@arrowbutlercastings.co.uk

ISO 9001 and UKAS Logo

Material Specifications

Sand Casting Properties
LM4 LM6 LM25 LM25TF LM27 L169
Tensile Strength (N/mm2) 140-170 160-190 130-150 230-280 140 290
Elongation (%) 2-3 5 2 - 1 3
Brinell Hardness 65-80 50-55 55-65 90-110 70-85 80
Thermal Con (cal/cm2/cm/deg C @ 25°C) 0.29 0.34 0.36 0.36 0.37 0.36
Electrical Con (% copper std. @ 20°C) 32 37 39 39 27 38
Machinability G P G E G E
Suitability for Anodising against Corrosion G F G G G G
Corrosion Resistance F E E E G E
Sand Casting Characteristics E E E E E G
Gravity Die (Chill) Casting Properties
LM4 LM6 LM25 LM25TF LM27 L169
Tensile Strength (N/mm2) 160-220 190-230 160-200 280-320 160 320
Elongation (%) 2-4 7 3 2 2 4
Brinell Hardness 70-90 55-60 55-65 90-110 75-0 85
Thermal Con (cal/cm2/cm/deg C @ 25°C) 0.29 0.34 0.36 0.36 0.37 0.36
Electrical Con (% copper std. @ 20°C) 32 37 39 39 27 38
Machinability G P G E G E
Suitability for Anodising against Corrosion G F G G G G
Corrosion Resistance F E E E G E
Gravity Die Casting Characteristics G E E E E E