15CrMo, also known as heat-resistant steel, is a type of alloy
structural steel mainly composed of Cr and Mo. 15 represents a
carbon content of 0.15%, Cr represents the added chemical element
"complex", and Mo represents the added chemical element "molybdenum"
15CrMo is an alloy structural steel plate mainly composed of
nickel, copper, and molybdenum. 15CrMo has good processability and
welding performance, and has high tensile strength, thermal
strength, and oxidation resistance at 500 to 550 ℃. The execution
standard for 15CrMo is GB/T 3077-2015 Steel Plate Standard
GB/T11251-2009.
Chemical Composition of 15CrMo Alloy
C
Si
Cr
Mo
Mn
0.12～0.18
0.17～0.37
0.80～1.10
0.40～0.55
0.40～0.70
15CrMo Mechanical Property
Tensile strength σ B (MPa)
Yield strength σ S (MPa)
Elongation rate δ 5 (%)
Reduction of area ψ (%)
Impact energy Akv (J)
Impact toughness value α KV (J/cm2)
Hardness
≥440
≥295
≥22
≥60
≥94
≥118
≤179HB
15CrMo Alloy Steel Plate Condition
The delivery status is generally hot-rolled, and the delivery
status should be specified in the contract between both parties.
Application Area of 15CrMo Alloy Steel Plate
15CrMo is widely used worldwide, adding core chemical elements such
as Cr and Mo to low-carbon materials, greatly improving its overall
performance. It has excellent high-temperature performance,
high-temperature oxidation resistance, corrosion resistance, and
toughness. Widely used in the manufacturing of large-scale
equipment with harsh operating conditions and complex corrosive
media, such as petrochemical, coal conversion, nuclear power, steam turbines, cylinder bodies, thermal power, etc.
Direct visual inspection of the surface quality of steel plates and
strips, and no defects such as cracks, bubbles, scars, folds, or
inclusions that are harmful to use are allowed on the surface of
the steel plates. There should be no layering on the side of the
steel plate. The density of the calculated theoretical weight of
the steel plate is 7.85 g/cm3, and the container plate needs to be
added with an additional value. Its 15CrMo melting point is
1420-1460 ℃
Equal Grade of 15CrMo Alloy Steel
GB
ASTM
EIN
NF
GOST
JIS
BS
15CrMo
A29/A29M
15CrMo5
15CD4.05
15XM
SCM415
1501-620Cr31
conclusion
15CrMo is an alloy structural steel plate, mainly composed of
chromium Cr and molybdenum Mo, with good process and welding
performance, suitable for harsh environments such as high
temperature and corrosion. Its chemical compositionand mechanical propertiescomply with national standards and are widely used in fields such
as petrochemicals and nuclear power. The production process
includes electric furnace steelmaking, refining, vacuum degassing,
etc. The surface quality requirements are high, and the calculationmethod is theoretical weight plus added value. Corresponding
domestic and foreign brand names include Japanese, Korean, German,
etc.
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