| Grade : | 30KHGFRL ( 30ХГФРЛ ) |
| Classification : | Casting alloy steel for general purposes |
| Equivalent grades: | Is absent |
Chemical composition in % for grade 30KHGFRL ( 30ХГФРЛ )
| C | Si | Mn | Ni | S | P | Cr | V | Cu | B |
| 0.28 - 0.36 | 0.2 - 0.6 | 0.8 - 1.25 | max 0.3 | max 0.04 | max 0.04 | 0.5 - 0.9 | 0.05 - 0.1 | max 0.3 | max 0.004 |
Temperature of critical points for grade 30KHGFRL ( 30ХГФРЛ ).
| Ac1 = 750 - 760 , Ac3(Acm) = 845 - 855 , Ar3(Arcm) = 720 - 855 , Ar1 = 425 - 675 , Mn = 320 - 370 |
Mechanical properties under Т=20oС for grade 30KHGFRL ( 30ХГФРЛ )
| Assortment | Dimension | Direct. | sв | sT | d5 | y | KCU | Heat treatment |
| - | mm | - | MPa | MPa | % | % | kJ / m2 | - |
| Casting | to 100 | 700 | 500 | 12 | 25 | 400 | Guenching 900 - 920oC,Drawing 650 - 670oC, |
| Brinell hardness for 30KHGFRL ( 30ХГФРЛ ) (quenching, tempering) , | HB 10 -1 = 196 - 255 MPa |
Technological properties for grade 30KHGFRL ( 30ХГФРЛ )
| Temper brittleness: | predisposed |
Technological properties of the material 30KHGFRL ( 30ХГФРЛ ) .
| Linear shrinkage : | 1.5 - 2 % |
Specification :
| Mechanical properties : | |
| sв | - Tensile strength , [MPa] |
| sT | - Yield stress, [MPa] |
| d5 | - Specific elongation at fracture , [ % ] |
| y | - Reduction of area , [ % ] |
| KCU | - Impact strength , [ kJ / m2] |
| HB | - Brinell hardness , [MPa] |
Physical properties : | |
| T | - Test temperature , [Grade] |
| E | - Young modulus , [MPa] |
| a | - Coefficient of linear expansion (range 20o - T ) , [1/Grade] |
| l | - Termal (heat) condition coefficient , [Watt/(m·Grade)] |
| r | - Density , [kg/m3] |
| C | - Specific heat ( range 20o - T ), [J/(kg·Grade)] |
| R | - Electrical resistance , [Ohm·m] |
Weldability : | |
| without limitations | - welding is done without heating and subsequent heat treeting |
| limited weldability | - welding is possible under heating up to 100-120 grade and subsequent heat treeting |
| hard weldability | - obtaining the quality welding needs the additional operations:heating up to 200-300 grade; the heat treeting ia annealing |
30KHGFRL ( 30ХГФРЛ ) - Casting alloy steel for general purposes: chemical composition, mechanical and physical properties, hardness
Database of steels and alloys (Marochnik) contains information about chemical composition and properties more then 3000 steels and alloys
| © 2003 - 2024 Database of Steel and Alloy (russian title is the Marochnik)
Administration of the Marochnik is not responsible for the content's use. |