Alloy 36NKHTJU5M (ЭП51)
Designation
| Name |
The value |
| Designation GOST Cyrillic |
36НХТЮ5М |
| Designation GOST Latin |
36HXTJu5M |
| Transliteration |
36NHTYu5M |
| The chemical elements |
36NiCrTeAl5Cu |
| Name |
The value |
| Designation GOST Cyrillic |
ЭП51 |
| Designation GOST Latin |
EP51 |
| Transliteration |
EhP51 |
| The chemical elements |
- |
Description
Alloy 36NKHTJU5M used: for the manufacture of elastic and provocatively elements operating at temperatures up to +350 °C.
Note
Alloy non-magnetic corrosion-resistant dispersion-hardened with a temporary resistance 1375−1765 MN/m2 (140−180 kgf/mm2), with the normal elasticity modulus 196000−206000 MN/m2 (20000−21000 kg/mm2).
Standards
| Name |
Code |
Standards |
| Classification, nomenclature and general norms |
В30 |
GOST 10994-74 |
| Tapes |
В34 |
GOST 14117-85 |
| Steel alloy wire |
В73 |
GOST 14118-85 |
| Sectional and shaped rolling |
В32 |
GOST 14119-85, TU 14-11-245-88 |
| Bulls. Blanks. Slabs |
В31 |
TU 14-1-2554-78 |
| Pipes steel and connecting parts to them |
В62 |
TU 14-3-379-75 |
Chemical composition
| Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Al |
Ti |
Mo |
| GOST 10994-74 |
≤0.05 |
≤0.02 |
≤0.02 |
0.8-1.2 |
12.5-13.5 |
0.3-0.7 |
35-37 |
The rest |
1-1.3 |
2.7-3.2 |
4-6 |
Fe is the basis.
Mechanical characteristics
| Section, mm |
t отпуска, °C |
sT|s0,2, MPa |
σB, MPa |
d5, % |
d |
d10 |
y, % |
kJ/m2, кДж/м2 |
HRC |
| Cold-rolled steel strip (samples) in the delivery state according to GOST 14117-85. Quenching in water from 965-985 °C + Aging at 700-750 °C (exposure 4 h) |
| 0.1-0.9 |
- |
- |
≥1230 |
- |
≥4 |
- |
- |
- |
- |
| 1-2 |
- |
≥930 |
≥1270 |
- |
≥4 |
- |
- |
- |
≥38 |
| Cold-rolled steel strip as supplied by GOST 14117-85 |
| 0.1-2 |
- |
- |
≥1100 |
- |
- |
- |
- |
- |
- |
| 0.1-0.9 |
- |
- |
930-1230 |
- |
≥2 |
- |
- |
- |
- |
| 1-2 |
- |
- |
930-1230 |
- |
≥3 |
- |
- |
- |
- |
| Cold-rolled steel strip as supplied by GOST 14117-85. Quenching in water with 975-1100 °C |
| 0.1-0.9 |
- |
- |
≤930 |
- |
≥15 |
- |
- |
- |
- |
| 1-2 |
- |
- |
≤880 |
- |
≥20 |
- |
- |
- |
- |
| Cold-rolled steel strip as supplied by GOST 14117-85. Aging (in the graph, the temperature of leave is specified aging temperature and aging time) |
| - |
700-750, 2-4ч |
880-1080 |
1230-1370 |
- |
≥4 |
- |
- |
- |
- |
| - |
680-710, 2ч |
1180-1370 |
1370-1520 |
- |
≥2 |
- |
- |
- |
- |
| - |
680-710, 2ч |
1030-1230 |
1270-1420 |
- |
≥3 |
- |
- |
- |
- |
| Cold drawn wire in the delivery state according to GOST 14118-85. Aging at 650-710 °C (exposure 2 hours), air cooling (indicated by the value δ100) |
| 0.3-5 |
- |
- |
≥1500 |
- |
≥1 |
- |
- |
- |
- |
| 0.3-5 |
- |
- |
≥1370 |
- |
≥1 |
- |
- |
- |
- |
| Bars and rods, hot-rolled, forged and with special surface finish GOST 14119-85. Quenching in water from 965-985 °C + Aging at 700-750 °C (delay of 2-4 h), air cooling |
| 1-80 |
- |
≥635 |
≥1030 |
- |
- |
≥10 |
≥20 |
≥290 |
- |
| Pipes cold drawn seamless thin-walled and extremely thin-walled for THAT 14-3-379-75. Aging at 675÷720 °C |
| - |
- |
≥1079 |
- |
≥9 |
- |
- |
- |
- |
- |
| - |
- |
≥1373 |
- |
≥9 |
- |
- |
- |
- |
- |
Description mechanical marks
| Name |
Description |
| Section |
Section |
| sT|s0,2 |
Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σB |
Limit short-term strength |
| d5 |
Elongation after rupture |
| d |
Elongation after rupture |
| d10 |
Elongation after rupture |
| y |
The relative narrowing |
| kJ/m2 |
Toughness |
| HRC |
Rockwell hardness (indenter diamond spheroconical) |
Physical characteristics
| Temperature |
r, кг/м3 |
| 20 |
7900 |
A description of the physical symbols
| Name |
Description |
| Е |
The normal elasticity modulus |
| G |
Modulus of elasticity shear torsion |
| r |
Density |
| l |
Coefficient of thermal conductivity |
| R |
UD. the resistivity |
| С |
Specific heat |
