C22R

C22R EN 10083-2:2002, Number: 1.1149	Comparison of steel grades
	JUS	13311
	DIN	(CK22)
	BS	-
	GOST	20
	AISI	-
	UNI	-
	NF	(XC18u)

Under EN10083-2:2002 standard,the C22R structural steel is to point to to meet a certain strength and

formability levels of steel. Formability tensile test to break elongation said. Structural steel are used for

carrying such use, in these USES the strength of steel is an important design standards.C22R structural steel can be divided into: alloy steel carbon structural steel low alloy steel heat resistant steel, etc.

C22R steel plate/sheet Chemical analysis -% by mass

Chemical elements	C	Si max.	Mn	P max.	S	Cr max.	Mo max.	Ni max.	Cr+Mo+Ni max.
% , by mass	0,17-0,24	0,40	0,40-0,70	0.025	0,020-0,040	0,40	0,10	0,40	0,63
Permissible deviation	± 0.02	+ 0,03	± 0,04	+ 0.005	± 0.005	+0,05	+0,03	+0,05	-

Maximum hardness for products to be supplied in the ’’treated to improve shearability (+S)’’ or ’’soft annealed (+A)’’ condition

+S HB max.	+A HB max.
-	-

Mechanical properties in the quenched and tempered condition (+QT)

	Mechanical properties for the ruling sections (see prEN10083-1:2002, Annex A) with a diameter (d) or for flat products trickness (t) of
	d ≤ 16mm t ≤ 8mm		16mm < d ≤ 40mm 8mm < t ≤ 20mm		40mm < d ≤ 100mm 20mm < t ≤ 60mm
Re min (MPa)	340	290		-
Rm (MPa)	500-650	470-620		-
A min. (%)	20	22		-
Z min. (%)	50	50		-
KV min. (J)	50		50		-

Mechanical properties in the normalized condition – (+N)

	Mechanical properties for products with a diameter (d) or, for flat products trickness (t) of
	d ≤ 16mm t ≤ 16mm		16mm < d ≤ 100mm 16mm < t ≤ 100mm		100mm < d ≤ 250mm 100mm < t ≤ 250mm
Re min. (MPa)	240	210		-
Rm min. (MPa)	430	410		-
A min. (%)	24		25		-

Heat treatment conditions

Quenching 0C	Quenching agent	Tempering temperature0C	Normalizing 0C
860-900	Water or oil Oil or water	550-660	880 to 940

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Tags: C22R