EN 1.7386 (X11CrMo9-1) High-Chromium Steel

Other Steels

Material conditionannealed

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density7.8g/cm³

Elastic Modulus190GPa

Tensile Strength550MPa

Yield Strength240MPa

Brinell Hardness170HB

Maximum Service Temperature600°C

Weight Calculator

Chemical Composition

0.080 to 0.15%

8.0 to 10%

0.9 to 1.1%

0.3 to 0.6%

0.25 to 1.0%

0 to 0.025%

0 to 0.010%

0 to 0.3%

0 to 0.040%

86.8 to 90.5%

Mechanical

Elastic (Young's, Tensile) Modulus

190 GPa

Elongation at Break

21 %

Fatigue Strength

170 MPa

Impact Strength: V-Notched Charpy

38 J

Poisson's Ratio

0.28

Shear Modulus

75 GPa

Shear Strength

340 MPa

Tensile Strength: Ultimate (UTS)

550 MPa

Tensile Strength: Yield (Proof)

240 MPa

Hardness

Brinell Hardness

170

Physical

Density

7.8 g/cm 3

Thermal

Latent Heat of Fusion

270 J/g

Maximum Temperature: Mechanical

600 °C

Melting Completion (Liquidus)

1450 °C

Melting Onset (Solidus)

1410 °C

Specific Heat Capacity

480 J/kg-K

Thermal Conductivity

26 W/m-K

Thermal Diffusivity

6.9 mm 2 /s

Thermal Expansion

13 µm/m-K

Thermal Shock Resistance

15 points

Electrical

Electrical Conductivity: Equal Volume

9.0 % IACS

Electrical Conductivity: Equal Weight (Specific)

10 % IACS

Calculated

PREN (Pitting Resistance)

Resilience: Ultimate (Unit Rupture Work)

92 MJ/m 3

Resilience: Unit (Modulus of Resilience)

150 kJ/m 3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

25 points

Strength to Weight: Axial

20 points

Strength to Weight: Bending

19 points

Environmental

Base Metal Price

6.5 % relative

Embodied Carbon

2.0 kg CO 2 /kg material

Embodied Energy

28 MJ/kg

Embodied Energy

28 MJ/kg 12 x 10 3 BTU/lb

Embodied Water

88 L/kg

Embodied Water

88 L/kg 10 gal/lb

Registered Designations & Aliases

1.73861.7386EN 1.7386 (X11CrMo9-1) High-Chromium SteelX11CrMo9-1X11CrMo9-1

Standards

EN 10216-2 EN 10216-2: 2014 Seamless steel tubes for pressure purposes. Technical delivery conditions. Non-alloy and alloy steel tubes with specified elevated temperature properties

EN 10216-2 EN 10216-2: Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties

EN 10216-2 EN 10216-2: Seamless steel tubes for pressure purposes - Technical delivery conditions - Part 2: Non-alloy and alloy steel tubes with specified elevated temperature properties Creep-Resistant Steels, Fujio Abe et al. (editors), 2008 Pressure Vessels: External Pressure Technology, 2nd ed., Carl T. F. Ross, 2011 Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005

EN 10253-2 EN 10253-2: 2007 Butt-welding pipe fittings. Non alloy and ferritic alloy steels with specific inspection requirements