Characteristics of the material 03KH21N21M4GB ( 03H21N21M4GB, 03Х21Н21М4ГБ ).
Material :
03KH21N21M4GB ( 03H21N21M4GB, 03Х21Н21М4ГБ )
Classification :
Corrosion-resistant steel for general purposes
Chemical composition in % of the material 03KH21N21M4GB ( 03H21N21M4GB, 03Х21Н21М4ГБ ) .
C
Si
Mn
Ni
S
P
Cr
Mo
-
max 0.03
max 0.6
1.8 - 2.5
20 - 22
max 0.02
max 0.03
20 - 22
3.4 - 3.7
С*15-0.8 ниобий
Mechanical properties under Т=20oС of the material 03KH21N21M4GB ( 03H21N21M4GB, 03Х21Н21М4ГБ ) .
Assortment
Dimension
Direct.
sв
sT
d5
y
KCU
Heat treatment
-
mm
-
MPa
MPa
%
%
kJ / m2
-
Sheet thin
550
250
25
Guenching 1080 - 1130oC, water,
Sheet trick
590
295
30
Guenching 1060 - 1120oC,Cooling water,
Technological properties of the material 03KH21N21M4GB ( 03H21N21M4GB, 03Х21Н21М4ГБ ) .
Weldability:
without limitations.
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]
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
Database of steels and alloys (Marochnik) contains information about chemical composition and properties of 1500 steels and alloys (stainless steel, alloy steel, carbone steel, structural steel, tool steel, cast iron, aluminum alloy, titanium alloy, copper alloy, nickel alloy, magnesium alloy and others). Helpfull for specialists in material technology, structural engineer, mechanical engineer, metallurgy and metal trader