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Russian Metals

Grade :	15X
Substitute:	10, 20
Classification :	High quality structural carbon steel
Equivalent grades:	Go here

Chemical composition in % for grade 15 ( 15 )

C	Si	Mn	Ni	S	P	Cr	Cu	As
0.12 - 0.19	0.17 - 0.37	0.35 - 0.65	max 0.3	max 0.04	max 0.035	max 0.25	max 0.3	max 0.08

Temperature of critical points for grade 15 ( 15 ).

Ac1 = 735 , Ac3(Acm) = 860 , Ar3(Arcm) = 840 , Ar1 = 685

Mechanical properties under Т=20oС for grade 15 ( 15 )

Assortment	Dimension	Direct.	σB	σT	δ5	ψ	KCU	Heat treatment
-	(mm)	-	MPa	MPa	%	%	kJ/m²	-
Sheet heat-treatment, GOST 4041-71	4 - 14		320-440		35
Pipe, GOST 5005-82			510	430	8
Rolled stock, GOST 1050-88	to 80		370	225	27	55		Normalizing
Rolled stock cold-worked , GOST 1050-88			440		8	45
Rolled stock annealed , GOST 1050-88			340		23	55
Band annealed , GOST 2284-79			310-490		20
Band cold-worked , GOST 2284-79			440-780

HB 10 -1 = 121 MPaHB 10 -1 = 125 MPaHB 10 -1 = 197 MPaHB 10 -1 = 149 MPaHB 10 -1 = 149 MPaHB 10 -1 = 143 MPa

Brinell hardness for 15 ( 15 ) , Sheet GOST 4041-71

Brinell hardness for 15 ( 15 ) , Bar GOST 10702-78

Brinell hardness for 15 ( 15 ) , Rolled stock GOST 1050-88

Brinell hardness for 15 ( 15 ) , Sheet trick GOST 1577-93

Technological properties for grade 15 ( 15 )

Weldability :	without limitations.
Flakes :	not predisposed
Temper brittleness:	not predisposed

Physical properties for grade 12KH18N10T ( 12Х18Н10Т )

78507827486515532565586620691

T	E 10- 5	α 10⁶	λ	ρ	C	R 10⁹
Grade	MPa	1/Grade	Watt/(m·Grade)	kg/m3	J/(kg·Grade)	Ohm·m
20	2.01		53
100	1.92	12.4	53	465	233
200	1.85	13.2	53	7794	296
300	1.76	13.9	49	7759	387
400	1.56	14.4	46	7724	487
500		14.8	43	7687	607
600		15.1	39	7648	753
700		15.3	36	7611	904
800		14.1	32	7599	1092
900		13.2	30	7584	708	1140
T	E 10- 5	α 10⁶	λ	ρ	C	R 10⁹

Equivalent steels for grade 08KH18N10T ( 08Х18Н10Т )

Warning! Indicated both exact and nearest equivalents.

USA	Germany	Japan	France	England	European	Italy	Belgium	Spain	China	Sweden	Bulgaria	Hungary	Poland	Romania	Czechia	Austria	Switzerland	South Korea
-	DIN,WNr	JIS	AFNOR	BS	EN	UNI	NBN	UNE	GB	SS	BDS	MSZ	PN	STAS	CSN	ONORM	SNV	KS
1015 1016 1017 1018 G10150 G10170 M1015 M1017	1.0401 1.1141 C15 C15E Ck15 Cq15 RSt42-2	S15 S15C S15CK S17C	C18RR XC12 XC15 XC18	040A15 080M15 C15E	1.1132 1.1141 2C15 C15E2C C15Е	C15 C16	C16-2	C15E C15k C16k F.1110 F.1511	15 H15A ZG200-400 s	1370	15	C15	15	OLC15 OLC15AT OLC15X	12020 12023	RC15	Ck15	SM15C SM15CK

Types of delivery of grade 15 ( 15 )

B03 - Metal forming treatment. Forgings
В22 - Graded and shaped rolling
B23 - Sheets and Strips
B24 - Ribbons
В32 - Graded and shaped rolling
B33 - Sheets and Strips
B34 - Ribbons
В62 - Steel pipes and connecting parts to them
В32 - В71 - Low-carbon steel wire
В72 - Medium-high and high-carbon steel wire
B76 - Metal nets

Specification

Mechanical properties :

σ_B - Tensile strength [MPa]

σ_T - Yield stress [MPa]

δ₅ - Specific elongation at fracture [%]

ψ - Reduction of area [%]

KCU - Impact strength [kJ/m²]

HB - Brinell hardness [MPa]

Physical properties :

T - Test temperature [Grade]

E - Young modulus [MPa]

α - Coefficient of linear expansion (20° - T) [1/Grade]

λ - Thermal (heat) condition coefficient [Watt/(m·Grade)]

ρ - Density [kg/m³]

C - Specific heat (range 20° - T) [J/(kg·Grade)]

R - Electrical resistance [Ohm·m]

Weldability :

without limitations - welding is done without heating and subsequent heat treeting

limited weldability - welding is possible under heating up to 100-120 grade and subsequent heat treeting

hard weldability - obtaining the quality welding needs the additional operations:heating up to 200-300 grade; the heat treeting ia annealing

15 ( 15 ) - High quality structural carbon steel: chemical composition, mechanical and physical properties, hardness

Database of steels and alloys (Marochnik) contains information about chemical composition and properties more then 3000 steels and alloys

15X