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 sT|s0,2, MPa σU, 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
sT|s0,2 Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σU 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