EN 1.1127 (38Mn6) Non-Alloy Steel
Other Steels
annealed
Property Overview
Density7.8g/cm³
Elastic Modulus190GPa
Tensile Strength660MPa
Yield Strength410MPa
Brinell Hardness190HB
Maximum Service Temperature400°C
Chemical Composition
C
0.34 to 0.42%
CR
0 to 0.4%
NI
0 to 0.4%
MO
0 to 0.1%
MN
1.4 to 1.7%
SI
0.15 to 0.35%
P
0 to 0.035%
S
0 to 0.035%
FE
96.6 to 98.1%
Mechanical
Elastic (Young's, Tensile) Modulus
190 GPa
Elongation at Break
25 %
Fatigue Strength
300 MPa
Poisson's Ratio
0.29
Shear Modulus
73 GPa
Shear Strength
420 MPa
Tensile Strength: Ultimate (UTS)
660 MPa
Tensile Strength: Yield (Proof)
410 MPa
Hardness
Brinell Hardness
190
Physical
Density
7.8 g/cm 3
Thermal
Latent Heat of Fusion
250 J/g
Maximum Temperature: Mechanical
400 °C
Melting Completion (Liquidus)
1460 °C
Melting Onset (Solidus)
1410 °C
Specific Heat Capacity
470 J/kg-K
Thermal Conductivity
49 W/m-K
Thermal Diffusivity
13 mm 2 /s
Thermal Expansion
12 µm/m-K
Thermal Shock Resistance
21 points
Electrical
Electrical Conductivity: Equal Volume
7.3 % IACS
Electrical Conductivity: Equal Weight (Specific)
8.4 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
140 MJ/m 3
Resilience: Unit (Modulus of Resilience)
440 kJ/m 3
Stiffness to Weight: Axial
13 points
Stiffness to Weight: Bending
24 points
Strength to Weight: Axial
23 points
Strength to Weight: Bending
22 points
Environmental
Base Metal Price
2.1 % relative
Embodied Carbon
1.5 kg CO 2 /kg material
Embodied Energy
19 MJ/kg
Embodied Energy
19 MJ/kg 8.3 x 10 3 BTU/lb
Embodied Water
49 L/kg
Embodied Water
49 L/kg 5.8 gal/lb
Registered Designations & Aliases
1.11271.112738Mn638Mn6EN 1.1127 (38Mn6) Non-Alloy Steel
Standards
EN 10297-1 EN 10297-1: 2003 Seamless circular steel tubes for mechanical and general engineering purposes. Non-alloy and alloy steel tubes. Technical delivery conditions
EN 10297-1 EN 10297-1: Seamless circular steel tubes for mechanical and general engineering purposes - Technical delivery conditions - Part 1: Non-alloy and alloy steel tubes