GRAPHITE SHEET MATERIAL (MGL)
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Spec. TU 5728-004-93978201-2007
MGL -graphite sheet material- is intended for making gaskets used for sealing fixed releasable connections of pipelines, armature, vessels and apparatus, cylinder heads of internal-combustion engine, gas turbine engines and other equipment.
The graphite sheet material is made both in the non-reinforced form and with the reinforcing elements. It is supplied in sheets with thickness from 1.0 mm, standard size 1000х1000 mm, and 1500х1500 mm. The material is resistant to thermocycling and preserves its performance characteristics in the course of time.
Properties
≤ 20 MPa
Permissible pressure the environment
-253 ÷ +650°С
Acceptable temperature range
0,8 ÷ 1,5 g/sm3
Density of the graphite component
1000/1500 mm
Length
1000/1500 mm
Width
Types
MGL-100
Non-reinforced sheet material consisting of one or more layers of non-reinforced foil made of thermo expanded graphite.
0,8 ÷ 8,0 mm
Shim thickness (inclusive)
50 %
Compressibility
15 %
Recoverability
MGL-100 is intended for:
- Making gaskets for the environments aggressive to all reinforcing constituents;
- Operational repair of spiral-wound gaskets and metal-base gaskets;
- Making gaskets for glass, enamel and rubberized flanges.
MGL-211
Reinforced sheet material made by rolling two layers of thermo expanded graphite foil with a smooth stainless steel sheet 0.1 mm thick placed in between them.
0,8 ÷ 4,0 mm
Shim thickness (inclusive)
40 %
Сжимаемость
15 %
Compressibility
Is used for making gaskets with a narrow field and thin jumpers.
MGL-212
Reinforced sheet material made by joint rolling of two layers of thermo expanded graphite foil with a perforated stainless steel sheet 0.1 mm thick placed in between them.
1,5 ÷ 4,0 mm
Shim thickness (inclusive)
40 %
Compressibility
15 %
Recoverability
Universal material for making gaskets operating in the whole range of temperatures and pressures.
МГЛ-312
Reinforced sheet material made by rolling two layers of thermo expanded graphite foil with a smooth stainless steel sheet 0.1 mm thick placed in between them.
4,0 ÷ 10,0 mm
Shim thickness (inclusive)
30 %
Compressibility
15 %
Recoverability
It is used for making gaskets of more than 4.0 mm thick and/or operating at pressures above 16 MPa.