Cast iron SCH15
Designation
| Name |
The value |
| Designation GOST Cyrillic |
СЧ15 |
| Designation GOST Latin |
CCh15 |
| Transliteration |
SCh15 |
| The 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 (cast iron and steel) |
В83 |
KSt 81-033:2009 |
| Cast iron |
В11 |
GOST 1412-85 |
| Pipes from ferrous metals and alloys cast and connecting parts to them |
В61 |
GOST 5525-88, GOST 9583-75 |
| Castings of cast iron (gray 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 |
The rest |
| KSt 81-033:2009 |
3.5-3.7 |
≤0.15 |
≤0.2 |
0.5-0.8 |
2-2.4 |
The rest |
Fe is the basis.
Allowed low alloying of cast iron with various elements (chromium, nickel, copper, phosphorus, etc.).
Mechanical characteristics
| σB, MPa |
Brinell hardness number, 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 |
| σB |
Limit short-term strength |
Physical characteristics
| Temperature |
Е, ГПа |
r, кг/м3 |
l, Вт/(м · °С) |
С, Дж/(кг · °С) |
| 20 |
70-110 |
7000 |
59 |
460 |
A description of the physical symbols
| Name |
Description |
| l |
Coefficient of thermal conductivity |
