X65Cr13, 1.4037 martensitic stainless steel


X65Cr13, 1.4037 martensitic stainless steel is characterised by its high hardenability in conjunction with good corrosion resistance in moderately corrosive environments. Due to its higher carbon content acc. to EN 10088-3, SEW 400, DIN 17440

X65Cr13, 1.4037 martensitic stainless steel - Introduction and Application

X65Cr13 is characterised by its high hardenability in conjunction with good corrosion resistance in moderately corrosive environments. Due to its higher carbon content, 1.4037 is more hardenable than 1.4034. It is used in the quenched and tempered condition and due to its high hardness, it is ideally suited for the production of cutting tools of all sorts and surgical implements.


Melted process

ESR


X65Cr13, 1.4037 martensitic stainless steel - Chemical composition WT %

CSiMnPSCrNi
0.58 ~ 0.70≤ 1.00≤ 1.00≤ 0.040≤ 0.01512.5 ~ 14.5-

Mechanical Property of X65Cr13, 1.4037 martensitic stainless steel

Condition of heat treatmentTensile
Rm(MPa)
Yield
Rp0.2(MPa)
Elongation
A(%)
Reduction in cross
section on fracture
Z (%)
Impact
AKV/AKU(J)
Brinell
Hardness(HBW)
Annealing≤ 840----≤ 265
Q/T------

Physical Property of X65Cr13, 1.4037 martensitic stainless steel

density (kg/dm3) 7.70

electrical resistivity at 20 °C (Ω mm2 /m) 0.55

magnetizability yes thermal conductivity at 20 °C (W/m K) 30

specific heat capacity at 20 °C (J/kg K) 460

Thermal expansion (K-1) :

  • 20 – 100 °C: 10.5 x 10-6

  •  20 – 200 °C: 11.0 x 10-6

  • 20 – 300 °C: 11.5 x 10-6

  • 20 – 400 °C: 12.0 x 10-6



Heat Treatment of X65Cr13, 1.4037 martensitic stainless steel

1.4037 can be soft annealed by holding at a temperature in the range 750 to 850 °C followed by slow cooling in an oven or in air. In this condition, the following mechanical properties can be expected:

Property Specification

tensile strength (N/mm2) Rm ≤ 800

hardness HB ≤ 245


Welding of X65Cr13, 1.4037 martensitic stainless steel

Although 1.4037 is generally not welded, it can be soldered in some instances.


Equivalent grades of X65Cr13, 1.4037 martensitic stainless steel

X65Cr13, 1.4037, GOST 65Ch13

X65Cr13, 1.4037 martensitic stainless steel Martensitic & Precipitation hardened stainless steel stock list

Grade Shape Dimensionmm Qty.kg
X65Cr13 Round bar Φ60 24348