1.0452 (P255QL)

Classification

Country	Section	Category
Country	Section	Category
Germany	Non-alloy Steels	Steels with Average 0,12% =< C < 0,25% or 400 MPa = < Rm < 500 MPa

Chemical composition

Standard	Fe, %	Si, %	Mn, %	Cr, %	Ti, %	Cu, %	Ni, %	V, %	Al, %	P, %	C, %	S, %	Nb, %	Mo, %
Standard	Fe, %	Si, %	Mn, %	Cr, %	Ti, %	Cu, %	Ni, %	V, %	Al, %	P, %	C, %	S, %	Nb, %	Mo, %
EN 10216-4	97.175–99.6	< 0.35	0.4–1.2	< 0.3	< 0.04	< 0.3	< 0.3	< 0.02	< 0.02	< 0.025	< 0.17	< 0.01	< 0.01	< 0.08

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Mechanical properties at 20 °C

Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{0.2}$ , $MPa$	$\epsilon_L$ , %	$\epsilon_T$ , %	$KV_{L}$ , $J$	$KV_{T}$ , $J$	Treatment
Rolling	Standard	Size, mm	Tension	Classifiers	$\sigma _{U}$ , $MPa$	$\sigma_{0.2}$ , $MPa$	$\epsilon_L$ , %	$\epsilon_T$ , %	$KV_{L}$ , $J$	$KV_{T}$ , $J$	Treatment
				moderate hardening	360–490	255	23	21	40	27

Standards

Standard	Description
Standard	Description
EN 10216-4

Description of chemical elements

Element	Units of measurement	Description
Element	Units of measurement	Description
Fe	%	Iron
Si	%	Silicon
Mn	%	Manganese
Cr	%	Chrome
Ti	%	Titan
Cu	%	Copper
Ni	%	Nickel
V	%	Vanadium
Al	%	Aluminium
P	%	Phosphorus
C	%	Carbon
S	%	Sulfur
Nb	%	Niobium
Mo	%	Molybdenum

Description of mechanical properties

Parameter	Units of measurement	Description
Parameter	Units of measurement	Description
$\sigma_{0.2}$	$MPa$	Tensile stress required to produce a total elongation of 0.2%
$\sigma _{U}$	$MPa$	Ultimate tensile strength
$\epsilon_L$	%	Elongation at break (longitudinal)
$\epsilon_T$	%	Elongation at break (transverse)
$KV_{L}$	$J$	Impact energy (longitudinal)
$KV_{T}$	$J$	Impact energy (transverse)