X20CrMo13, 1.4210


X20CrMo13, 1.4120, BOHLER T602 Martensitic Stainless Steel C-0.2-Cr-12.5-Mo-1.1-Ni-0.4-Si-0.35 Temperature resisting alloy, hardenable, parts for thermal power plants, sealing strip Acc. to SEW 400 and DIN 17442-1977 Spec.

X20CrMo13, 1.4210 - Introduction and Application

Martensitic Stainless steel X20Cr13, 1.4021 Owing to its greater high-temperature strength and corrosion resistance - resulting from the addition of molybdenum - PK320 is used for shafts and blades in water and steam turbine systems. One special field of application is for bedknives in the cellulose industry. , hardenable, parts for thermal power plants, sealing strip, knives for woodworking, parts of turbines, and components working up to the temperature of about 500℃. Steel is resistant to water with a low chlorine content in fine-machined or, better still, polished condition. Hot forming temperature: 1100-800℃


X20CrMo13, 1.4210 - Chemical composition WT %

GradeChemical Composition WT %
CMnSiPSCrMoNiCu
DIN X20CrMo13, 1.41200.17 - 0.22Max 1.0Max 1.0Max 0.045Max 0.03012.0 - 14.00.9 - 1.3Max 1.0-
SEW X20CrMo13, 1.41200.17 - 0.22Max 1.0Max 1.0Max 0.040Max 0.01512.0 - 14.00.9 - 1.3Max 1.0-
DIN X19CrMo12-1, 1.49210.15 - 0.230.3 - 0.80.1 - 0.5Max 0.045Max 0.03011.0 - 12.50.8 - 1.2Max 0.8-
NF Z20CD140.17 - 0.22Max 1.0Max 1.0Max 0.040Max 0.03012.0 - 14.00.7 - 1.1Max 1.0-
STAS 20MoCr1300.17 - 0.22Max 1.0Max 1.0Max 0.045Max 0.03012.0 - 14.00.9 - 1.3Max 1.0Max 0.3

Mechanical Property of X20CrMo13, 1.4210

Tensile strength Rm: 750-900 N/mm2

Yield strength, Rp0,2:  Min 550 N/mm2

Elongation A: Min 14%

Hardness: 220-280 HB

Condition: Quenched, d<=160 mm

Hardness: max. 220-280 HB

0.2 % proof stress: 550 N/mm2

Tensile strength: 750-900 N/mm2

Elongation: 14%

Charpy notch (ISO-V): 28 J  

0.2 % Proof Stress in N/mm2 vs. Tempering Temperature in ℃

100oC150oC200oC250oC300oC350oC400oC
520510500490480450410




Physical Property of X20CrMo13, 1.4210

PropertyTemperatureValue
Elastic modulus20.0 °C217.68 - 220 GPa

100.0 °C213 - 216 GPa

200.0 °C206 - 209 GPa

300.0 °C198 - 200 GPa

400.0 °C190 - 192 GPa

500.0 °C180 - 183 GPa

600.0 °C167 GPa
Elongation20.0 °C14 %
Elongation, transverse20.0 °C10 %
Hardness, Brinell20.0 °C220 - 280 [-]
Hardness, Brinell, trans20.0 °C220 - 280 [-]
Poisson's ratio20.0 °C0.28 [-]
Shear modulus20.0 °C84.95 GPa
Tensile strength20.0 °C750 - 900 MPa
Tensile strength, transverse20.0 °C750 - 900 MPa
Yield strength20.0 °C550 MPa
Yield strength Rp0.250.0 °C530 MPa

100.0 °C520 MPa

150.0 °C510 MPa

200.0 °C500 MPa

250.0 °C420 MPa

300.0 °C480 MPa

350.0 °C450 MPa

400.0 °C410 MPa
Yield strength, transverse20.0 °C550 MPa

Heat Treatment of X20CrMo13, 1.4210

Annealing at 750 - 850℃ with furnace, cool slowly in furnace. Tensile strength is max. 770 N/mm2 . Structure is ferrite with spherical carbides.

Quenching Harden from a temperature of 950-1000℃ followed by oil quenching.

Tempering at 650 - 750℃ with Cooling in air




Welding of X20CrMo13, 1.4210

Martensitic Stainless steel X20Cr131.4021 Only limted weldability using the manual arc, resistance and TIG welding process, as hardening occurs in the heat-affected zone. Filler material is Themanit or 1520.

Note: PK320 is primarily supplied in quenched and tempered condition. It can be set to other strength ranges. Is must be borne in mind in this context that the temperature range between 420 and 520 must be avoided owing to embrittlemnent at 475


Machining of X20CrMo13, 1.4210

Martensitic Stainless steel X20Cr131.4021 cutting machining is teh same as that for special engineering steel grades of corresponding strength.


Equivalent grades of X20CrMo13, 1.4210

X20CrMo13, 1.4120, X19CrMo12-1, 1.4921, Z20CD14, 20MoCr130, JIS SCS4

X20CrMo13, 1.4210 Martensitic & Precipitation hardened stainless steel stock list

Grade Shape Dimensionmm Qty.kg
X20CrMo13 Strip 0.3 x 150 x C 3890
1.4120 Coil 0.5 x 150 x C 1567