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18Ni Maraging Steel

Description

USA ASTM 18Ni Maraging Steel Typical applications for maraging include missile and rocket motor cases, landing and takeoff gear, munitions, aerospace, extrusion tooling, die casting, high performance shafting, gears and fasteners. and 18Ni Maraging Steel Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: 18Ni Maraging Steel
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel 18Ni Maraging Steel ASTM USA Typical applications for maraging include missile and rocket motor cases, landing and takeoff gear, munitions, aerospace, extrusion tooling, die casting, high performance shafting, gears and fasteners.
EN X7CrNiMoBNb16-16
EN X8Ni9
EN X10CrNiMoMnNbVB15-10-1
EN X12CrNiMoV12-3
EN X12M5
EN X15CrMo5-1
EN X18CrMoNbVNi1-1
EN X22CrMoV12-1
501
MARAGING (C) 300

Chemical composition(mass fraction)(wt.%) of the 18Ni Maraging Steel

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) Cu(%) Co(%) Al(%) Ti(%) Other(%)
0.03 0.10 0.10 0.010 0.010 0.50 18.00-19.00 4.60-5.20 0.50 8.50-9.50 0.05-0.15 0.50 -0.80 Fe Bal

Mechanical Properties of steel grade 18Ni Maraging Steel

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
916 (≥) 934 (≥) 44 13 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade 18Ni Maraging Steel

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
21 - -     0.33 -  
179 557 - 44.3 222   -  
194 - 12 24.2   123 421

Heat Treatment of steel grade 18Ni Maraging Steel

Heat treated : 1541°C - 1342°C

Technological Curves of steel grade 18Ni Maraging Steel

Cross Reference Table (Equivalent Grade) of 18Ni Maraging Steel

Grade Standard Country Application
0Cr18Ni9 China Austenitic steel
20Cr-18Ni+Mo+Cu AISI USA
20Cr-18Ni+Mo+Cu AISI USA
GS-18NiMoCr3 6 DIN Germany
GS-18NiCrMo12 6 DIN USA
Y1Cr18Ni9 GBT China Improve the machinability, ablation resistance. Suitable for automatic lathe production of bolt and nut
1Cr18Ni9 GBT China High strength after cold forming, but elongation than 1 cr17ni7 slightly worse. Used in architectural decoration parts
Y1Cr18Ni9Se GBT China Improve the machinability, ablation resistance. Suitable for automatic lathe production of rivets, screws
00Cr18Ni10N GBT China In 00cr19ni10 adding N, on the basis of the above grades also features, use the same as the 0 cr19ni9n, but better intergranular corrosion resistance
1Cr18Ni12 GBT China Compared with 0 cr19ni9, processing low hardenability. Used for spinning processing, special drawing, cold heading
12Cr18Ni9 GBT China Stainless steel bars
Y12Cr18Ni9 GBT China Stainless steel bars
Y12Cr18Ni9Se GBT China Stainless steel bars
06Cr18Ni9Cu3 GBT China Stainless steel bars
10Cr18Ni12 GBT China Stainless steel bars
06Cr18Ni12Mo2Cu2 GBT China Stainless steel bars
022Cr18Ni14Mo2Cu2 GBT China Stainless steel bars
03Cr18Ni16Mo5 GBT China Stainless steel bars
06Cr18Ni11Ti GBT China Stainless steel bars
06Cr18Ni11Nb GBT China Stainless steel bars

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