ABS Grade DQ47: High-Strength Steel Properties & Specifications

Extra High Strength Steel

Properties

General

Property	Value	Comment
Carbon equivalent (CET)	0.25 [-]	N/NR
	0.3 [-]	TM
	0.32 [-]	QT
Carbon equivalent (CEV)	0.45 [-]	for t ≤ 50 mm plate thickness condition TM
	0.46 [-]	for t ≤ 50 mm sections condition TM
	0.47 [-]	for 50 < t ≤100 mm plate thickness condition TM
	0.47 [-]	for t ≤ 50 mm plate thickness condition QT
	0.48 [-]	for 100 < t ≤ 250 mm plate thickness condition TM
	0.48 [-]	for 50 < t ≤100 mm plate thickness condition QT
	0.5 [-]	for t ≤ 50 mm plate thickness condition N/NR
	0.5 [-]	for 100 < t ≤ 250 mm plate thickness condition QT
	0.51 [-]	for t ≤ 50 mm sections condition N/NR
	0.51 [-]	for t ≤ 65 mm tabulars condition N/NR
	0.52 [-]	for 50 < t ≤100 mm plate thickness condition N/NR
	0.54 [-]	for 100 < t ≤ 250 mm plate thickness condition N/NR
	0.55 [-]	for t ≤ 250 or d ≤ 250 mm bars condition N/NR
Density	7.8 - 7.9 g/cm³	typical for low carbon steel

Mechanical

Property	Temperature	Value	Comment
Charpy impact energy, V-notch	-20 °C	46 J
Charpy impact energy, V-notch, transverse	-20 °C	31 J
Elastic modulus		200 - 215 GPa	typical for low carbon steel
Elongation		17 %	min.
Poisson's ratio		0.29 [-]	typical for low carbon steel
Shear modulus		82 GPa	typical for low carbon steel
Tensile strength		570 - 720 MPa

Thermal

Property	Value	Comment
Coefficient of thermal expansion	1.32e-05 - 1.38e-05 1/K	typical for low carbon steel
Max service temperature	500 °C	typical for carbon steel
Melting point	1480 - 1526 °C	typical for low carbon steel
Specific heat capacity	465 J/(kg·K)	typical for low carbon steel
Thermal conductivity	25 - 93 W/(m·K)	typical for low carbon steel

Electrical

Property	Value	Comment
Electrical resistivity	1.43e-07 - 1.74e-07 Ω·m	typical for carbon steel

Chemical properties

Property	Value	Comment
Aluminium	0.018 - 0.2 %	min., depending on the delivery condition
Boron	0.005 %	max.
Calcium	0.005 %	max.
Carbon	0.16 - 0.2 %	max., depending on the delivery condition
Chromium	0.3 - 2 %	max., depending on the delivery condition
Copper	0.5 - 0.55 %	max., depending on the delivery condition
Manganese	1 - 1.7 %	depending on the delivery condition
Molybdenum	0.1 - 0.7 %	max., depending on the delivery condition
Nickel	0.8 - 3.5 %	max., depending on the delivery condition
Niobium	0.05 - 0.06 %	max., depending on the delivery condition
Nitrogen	0.015 - 0.025 %	max., depending on the delivery condition
Phosphorus	0.025 - 0.03 %	max., depending on the delivery condition
Silicon	0.6 - 0.8 %	max., depending on the delivery condition
Sulfur	0.01 - 0.025 %	max., depending on the delivery condition
Titanium	0.05 %	max.
Vanadium	0.12 - 0.2 %	max., depending on the delivery condition

Technological properties

Property
Supplier Disclaimer	The given information is a rough description and some properties can depend on various factors such as product thickness. Please contact the supplier or refer to the related norm or standard for further information.

Property

Supplier Disclaimer

The given information is a rough description and some properties can depend on various factors such as product thickness. Please contact the supplier or refer to the related norm or standard for further information.

ABS AQ47: High-Strength Steel for Precision Engineering ABS Grade EQ47 Steel: Unmatched High Strength & Precision

Metal