Steel 15ps

Designation

Name	The value
Designation GOST Cyrillic	15пс
Designation GOST Latin	15pc
Transliteration	15ps
By chemical elements	15

Description

15ps steel is used: for the production of sheet metal, 1−2 mm 4−14 category, intended for cold forming; elements of pipe joints; fittings, plugs and other parts of kotloturbina operating at temperatures from -40 °C to +425 °C, after carburizing and cyanidation parts, which require high surface hardness and low strength of the core (fasteners, axles, levers and other parts); electric-welded pipes.

Note

The degree of deoxidation — PS.

Standards

Name	Code	Standards
Bars and shapes	В32	GOST 1050-88, GOST 7417-75, GOST 8559-75, GOST 8560-78, GOST 10702-78, GOST 14955-77, GOST 1050-2013, TU 14-1-2118-77, TU 14-11-245-88, TU 14-136-367-2008
Fittings, components and parts for railway rolling stock	Д55	GOST 11530-93
Sheets and strips	В33	GOST 1577-93, GOST 4041-71, TU 14-1-4516-88
Tape	В34	GOST 2284-79, GOST 10234-77, GOST 19851-74
Classification, nomenclature and General rules	В70	GOST 2771-81
Steel pipes and fittings to them	В62	GOST 3262-75, GOST 10704-91, GOST 10705-80, GOST 10707-80, GOST 20295-85, GOST 24950-81, TU 14-3-1428-86, TU 1373-022-05757850-08, TU 1373-013-02949352-2003
Tape	В24	GOST 3560-73
Steel wire medium and high carbon	В72	GOST 3920-70, GOST 7372-79, GOST 9389-75, GOST 9850-72, GOST 17305-91, GOST 26366-84
Sheets and strips	В23	GOST 82-70, GOST 14918-80, GOST 16523-97, GOST 19904-90, GOST 16523-89, GOST 16523-70, GOST 103-2006, GOST 19903-90
Bars and shapes	В22	GOST 8278-83, GOST 8281-80, GOST 8282-83, GOST 8283-93, GOST 8319.0-75, GOST 9234-74, GOST 10551-75, GOST 11474-76, GOST 19771-93, GOST 2590-2006, GOST 2591-2006, GOST 2879-2006
Blanks. Of the workpiece. Slabs	В31	OST 3-1686-90, TU 14-1-4944-90
Test methods. Packing. Marking	В29	TU 14-106-485-99

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	N	As
GOST 1050-88	0.12-0.19	≤0.04	≤0.035	0.35-0.65	≤0.25	0.05-0.17	≤0.3	Rest	≤0.3	≤0.006	≤0.08
GOST 10702-78	0.12-0.19	≤0.04	≤0.035	0.35-0.65	≤0.25	≤0.1	≤0.3	Rest	≤0.3	≤0.006	≤0.08

Fe is the basis.
According to GOST 1050-88, the nitrogen content is specified for the steel of the oxygen-converter method of smelting. For all other types of smelting, the nitrogen content was N≤0.008%.

Mechanical properties

Section, mm	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	d₄	d	d₁₀	y, %	HB, MPa	HRB
Tape flatted average strength of 0.1-4.0 mm according to GOST 10234-77 in the state of delivery (indicated delivery)
-	-	690-830	-	-	-	-	-	-	-
-	-	≤540	-	-	≥15	-	-	-	-
-	-	≤410	-	-	-	-	-	-	-
Rolled sheet 1-2 categories of heat-treated (annealing, normalization, high tempering or normalizing + tempering) in the delivery state according to GOST 4041-71
4-14	-	320-440	≥30	-	-	≥26	-	≤121	≤68
Longitudinal electric-welded pipes (Dy=10-530 mm) in the delivery condition. Listed marsvolta base metal
-	≥225	≥372	≥22	-	-	-	-	-	-
Steel calibrated and calibrated with special surface finish
-	-	≥390	≥8	-	-	-	≥50	≤187	-
Sheet
-	-	≥345	≥30	-	-	-	-	-	-
-	-	325-440	≥30	-	-	-	-	≤121	-
Cold-rolled steel strip of 0.1-4.0 mm in the delivery state according to GOST 2284-79
-	-	440-780	-	-	-	-	-	-	-
-	-	310-490	-	≥20	-	-	-	-	-
Strip g/K, normalized in the state of delivery
-	-	≥355	≥29	-	-	-	≥55	-	-
Hot-rolled sheet in the delivery condition. Group strength К310В
2-3.9	-	310-440	-	≥25	-	-	-	-	≤70
Cold-rolled sheet in the delivery condition. Group strength К310В
≤2	-	310-440	-	≥24	-	-	-	-	≤70
2-3.9	-	310-440	-	≥27	-	-	-	-	≤70

Description mechanical marks

Name	Description
s_T\|s_0,2	Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σ_U	Limit short-term strength
d₅	Elongation after rupture
d₄	Elongation after rupture
d	Elongation after rupture
d₁₀	Elongation after rupture
y	The relative narrowing
HB	Brinell hardness number
HRB	Rockwell hardness (indenter steel, spherical)

Physical characteristics

Temperature	Е, HPa	G, HPa	r, kg/m³	l, W/(m · °C)	R, Mr. · m	a, 10^-6 1/°C	С, J/(kg · °C)
0	201	83	7850	-	-	-	-
20	201	-	7850	-	-	-	-
100	192	80	7827	53	233	124	465
200	185	77	7794	53	296	132	486
300	172	74	7759	49	387	139	515
400	156	71	7724	46	487	145	532
500	-	68	7687	43	607	149	565
600	-	63	7648	39	753	151	586
700	-	-	7611	36	904	151	620
800	-	-	7599	32	1092	-	691
900	-	-	7584	30	1140	153	691
1100	-	-	-	-	-	-	708

A description of the physical symbols

Name	Description
Е	The normal elasticity modulus
r	Density
l	Coefficient of thermal conductivity
R	UD. the resistivity
a	The coefficient of linear expansion
С	Specific heat

Technological properties

Name	The value
Weldability	Welded without any restrictions. Welding methods: SMAW, ADS submerged arc and gas protection, the CCC.
Склонность к отпускной хрупкости	tend not
The temperature of forging	Beginning - 1300 °C, end - 700 °C. air Cooling.
Flock-sensitive sensitivity	not sensitive
Machinability	In hot-rolled state when HB 143 Kn TV.SPL.=1.8