Steel 34ХН1М (0ХН1М)
Designation
Name |
The value |
Designation GOST Cyrillic |
34ХН1М |
Designation GOST Latin |
34XH1M |
Transliteration |
34HN1M |
The chemical elements |
34CrН1Mo |
Name |
The value |
Designation GOST Cyrillic |
0ХН1М |
Designation GOST Latin |
0XH1M |
Transliteration |
0HN1M |
The chemical elements |
0CrН1Mo |
Description
34ХН1М steel is used: for the manufacture of forgings of various parts of General engineering; solid-rolled rings for different purposes, disks, shafts, rotors of turbines and compressors, excavators, shafts, axles and couplings, gears, hubs, shaft-pinion, bolt, weight pins, and other critical high-load parts, which meet high requirements for mechanical properties and working temperatures up to +500 °C; backup rolls of rolling mills.
Note
Steel high-alloyed quality.
Standards
Name |
Code |
Standards |
Metal forming. Forgings |
В03 |
GOST 8479-70, TU 108-11-38-76, TU 0306.018-80, TU 108.11.917-87, ST ЦКБА 010-2004 |
Sectional and shaped rolling |
В32 |
OST 1 92049-76 |
Chemical composition
Standard |
C |
S |
P |
Mn |
Cr |
Si |
Ni |
Fe |
Cu |
Mo |
TU 108.11.917-87 |
0.3-0.4 |
≤0.035 |
≤0.03 |
0.5-0.8 |
1.3-1.7 |
0.17-0.37 |
1.3-1.7 |
The rest |
≤0.3 |
0.2-0.3 |
Fe is the basis.
Mechanical characteristics
Section, mm |
sT|s0,2, MPa |
σB, MPa |
d5, % |
y, % |
kJ/m2, кДж/м2 |
Brinell hardness number, MPa |
Forgings. Hardening + Vacation |
300-500 |
≥315 |
≥570 |
≥12 |
- |
≥290 |
167-207 |
100-300 |
≥440 |
≥635 |
≥14 |
- |
≥540 |
197-235 |
300-500 |
≥440 |
≥635 |
≥13 |
- |
≥490 |
197-235 |
500-800 |
≥440 |
≥635 |
≥11 |
- |
≥390 |
197-235 |
100 |
≥440 |
≥635 |
≥16 |
- |
≥590 |
197-235 |
100-300 |
≥490 |
≥655 |
≥13 |
- |
≥540 |
212-248 |
300-500 |
≥490 |
≥655 |
≥12 |
- |
≥490 |
212-248 |
500-800 |
≥490 |
≥655 |
≥11 |
- |
≥390 |
212-248 |
100-300 |
≥540 |
≥685 |
≥13 |
- |
≥490 |
223-262 |
300-500 |
≥540 |
≥685 |
≥12 |
- |
≥440 |
223-262 |
100 |
≥540 |
≥685 |
≥15 |
- |
≥590 |
223-262 |
100-300 |
≥590 |
≥735 |
≥13 |
- |
≥490 |
235-277 |
300-500 |
≥590 |
≥735 |
≥12 |
- |
≥440 |
235-277 |
100-300 |
≥640 |
≥785 |
≥12 |
- |
≥490 |
248-293 |
100 |
≥640 |
≥785 |
≥13 |
- |
≥590 |
248-293 |
100-300 |
≥685 |
≥835 |
≥12 |
- |
≥490 |
262-311 |
100 |
≥685 |
≥835 |
≥13 |
- |
≥590 |
262-311 |
100 |
≥735 |
≥880 |
≥13 |
- |
≥590 |
277-321 |
Forgings. Normalization |
100-300 |
≥395 |
≥615 |
≥15 |
- |
≥540 |
187-229 |
100 |
≥395 |
≥615 |
≥17 |
- |
≥590 |
187-229 |
The sample with diameter of 6 and a length of 30 mm and extruded. The rate of deformation of 16 mm/sec. The strain rate of 0.009 1/s. |
- |
≥89 |
≥15 |
≥49 |
≥84 |
- |
- |
- |
≥39 |
≥58 |
≥46 |
≥65 |
- |
- |
- |
≥20 |
≥27 |
≥45 |
≥100 |
- |
- |
Forging. Quenching in oil from 860 °C to + Vacation at 660 °C |
- |
590-640 |
790-820 |
19-23 |
≥68 |
200-250 |
- |
- |
≥560 |
≥740 |
18-20 |
62-68 |
- |
- |
- |
≥520 |
≥730 |
≥15 |
54-56 |
- |
- |
- |
≥480 |
630-670 |
19-21 |
≥72 |
- |
- |
- |
440-470 |
510-520 |
22-24 |
83-84 |
- |
- |
Forgings. Isothermal annealing of 860-870 °C, exposure at 640-660 °C, then cooling with the furnace |
700 |
≥320 |
≥580 |
≥11 |
- |
≥300 |
167-207 |
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 |
y |
The relative narrowing |
kJ/m2 |
Toughness |
Technological properties
Name |
The value |
Weldability |
limited weldability. Welding methods: SMAW, ESW. |
Propensity to temper brittleness |
malosana |
Forging temperature |
Start - 1240 °C, the end - 780 °C. the cross Sections up to 100 mm are cooled in air, 101-300 mm in the pit. |
Flock-sensitive sensitivity |
highly sensitive |
Workability by cutting |
After annealing at NV 210-230 blower SB=650 MPa Kn TV.SPL.=0.8 |