EN 1.7380 (10CrMo9-10) Chromium-Molybdenum Steel

Other Steels

Material conditionnormalized and tempered

Overview Chemical Composition Mechanical Properties Physical Properties Other Properties

Property Overview

Density7.9g/cm³

Elastic Modulus190GPa

Tensile Strength550MPa

Yield Strength330MPa

Brinell Hardness170HB

Maximum Service Temperature460°C

Weight Calculator

Chemical Composition

0.080 to 0.14%

2.0 to 2.5%

0.9 to 1.1%

0.4 to 0.8%

0 to 0.5%

0 to 0.012%

0 to 0.020%

0 to 0.010%

0 to 0.3%

94.6 to 96.6%

Mechanical

Elastic (Young's, Tensile) Modulus

190 GPa

Elongation at Break

20 %

Fatigue Strength

230 MPa

Impact Strength: V-Notched Charpy

35 J

Poisson's Ratio

0.29

Shear Modulus

74 GPa

Shear Strength

350 MPa

Tensile Strength: Ultimate (UTS)

550 MPa

Tensile Strength: Yield (Proof)

330 MPa

Hardness

Brinell Hardness

170

Physical

Density

7.9 g/cm 3

Thermal

Latent Heat of Fusion

260 J/g

Maximum Temperature: Mechanical

460 °C

Melting Completion (Liquidus)

1470 °C

Melting Onset (Solidus)

1430 °C

Specific Heat Capacity

470 J/kg-K

Thermal Conductivity

39 W/m-K

Thermal Diffusivity

11 mm 2 /s

Thermal Expansion

13 µm/m-K

Thermal Shock Resistance

16 points

Electrical

Electrical Conductivity: Equal Volume

7.6 % IACS

Electrical Conductivity: Equal Weight (Specific)

8.7 % IACS

Calculated

PREN (Pitting Resistance)

5.6

Resilience: Ultimate (Unit Rupture Work)

98 MJ/m 3

Resilience: Unit (Modulus of Resilience)

280 kJ/m 3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

24 points

Strength to Weight: Axial

20 points

Strength to Weight: Bending

19 points

Environmental

Base Metal Price

3.8 % relative

Embodied Carbon

1.8 kg CO 2 /kg material

Embodied Energy

23 MJ/kg

Embodied Energy

23 MJ/kg 9.9 x 10 3 BTU/lb

Embodied Water

59 L/kg

Embodied Water

59 L/kg 7.0 gal/lb

Registered Designations & Aliases

1.73801.738010CrMo9-1010CrMo9-10EN 1.7380 (10CrMo9-10) Chromium-Molybdenum Steel

Standards

EN 10028-2 EN 10028-2: 2009 Flat products made of steels for pressure purposes. Non-alloy and alloy steels with specified elevated temperature properties

EN 10028-2 EN 10028-2: Flat products made of steels for pressure purposes - Part 2: Non-alloy and alloy steels with specified elevated temperature properties

EN 10028-2 EN 10028-2: Flat products made of steels for pressure purposes - Part 2: Non-alloy and alloy steels with specified elevated temperature properties 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 Welding Metallurgy, 2nd ed., Sindo Kou, 2003 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 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 10253-2 EN 10253-2: 2007 Butt-welding pipe fittings. Non alloy and ferritic alloy steels with specific inspection requirements

EN 10273 EN 10273: 2007 Hot rolled weldable steel bars for pressure purposes with specified elevated temperature properties