Cast iron SCH15

Designation

Name The value
Designation GOST Cyrillic СЧ15
Designation GOST Latin CCh15
Transliteration SCh15
By chemical elements -

Description

Cast iron SCH15 used: for the manufacture of castings, crankcases, covers, brake drums, gearboxes, inlet and exhaust pipes, flywheels and other automotive components; drums, axles, gear housings and other parts of chemical engineering; parts working in compression (Bashmakov, columns) in construction; small and medium non-critical parts of diesel engine; sewer pipes and radiators; castings 3 groups for stationary steam turbines, turbine equipment, nuclear power plants, elements of steam boilers and pipelines, hydraulic turbines, hydraulic valves and other equipment power plant engineering, subjected to static loads and castings, working in conditions of water vapor and oil at temperatures up to 70 °C (body of column, bearing housing, cover-mounts velopanorama, frame bearings, frame foundations, liners, bushings, struts, tailpipes, casing); casting parts of valves and actuators; non-critical casting parts mining and metallurgical equipment; cast connecting parts for pipelines.

Note

Ferritic-pearlitic cast iron with lamellar graphite.

Standards

Name Code Standards
Castings with special properties (iron and steel) В83 KSt 81-033:2009
Cast iron В11 GOST 1412-85
Pipes of ferrous metals and alloys, cast fittings to them В61 GOST 5525-88, GOST 9583-75
Cast iron castings (grey and malleable cast iron) В81 OST 108.962.01-85, OST 24.207.01-90, OST 23.4.258-86, OST 23.4.117-84, TU 26-0401-725-86, TU 1-812-0072-94

Chemical composition

Standard C S P Mn Si Fe
GOST 1412-85 3.5-3.7 ≤0.15 ≤0.2 0.5-0.8 2-2.4 Rest
KSt 81-033:2009 3.5-3.7 ≤0.15 ≤0.2 0.5-0.8 2-2.4 Rest
Fe is the basis.
Allowed low alloying of cast iron with various elements (chromium, nickel, copper, phosphorus, etc.).

Mechanical properties

σU, MPa HB, MPa
Castings in cast or heat treated condition for STP М319-95
≥150 130-241
Part of the connecting piping (sand casting) according to GOST 5525-88 (NV - in the center of a wall)
≥150 ≤250

Description mechanical marks

Name Description
σU Limit short-term strength
HB Brinell hardness number

Physical characteristics

Temperature Е, HPa r, kg/m3 l, W/(m · °C) С, J/(kg · °C)
20 70-110 7000 59 460

A description of the physical symbols

Name Description
l Coefficient of thermal conductivity