15Kh2GN2TA
15Kh2M2FBS is a grade designated under GOST. Its recorded composition includes C 0.13–0.18%, Si 0.7–1%, Cr 1.8–2.3%, Mn 0.5–0.8% and Mo 1.2–1.5%. We list 3 designations recorded for this grade, in the standards GOST. Recorded mechanical properties include Rm 550–640 N/mm², Re 380–450 N/mm², A5 16–18%, HB 180–197, Z 45–50% and KCU 500–600 kJ/m²; these figures vary with the delivery condition and dimension. Its recorded density is 7.85 g/cm³. Further recorded physical values: E 164–224 GPa, λ 33.5–34.8 W/(m·K), α 12–14.5 ·10⁻⁶/K and ρ el. 450–950 nΩ·m; several of these are temperature-dependent. Recorded transformation points: Ac1 780 °C, Ac3 1020 °C and Ar3 830 °C.
- Designations 4
If you came for one of these
The most-used names for this grade.Also known as
4 designations · 1 standards · nothing hidden- 15Kh2GN2TAIndicative
- 15Kh2GN2TRAIndicative
- 15Kh2M2FBSThis grade’s own name
- 15Х2М2ФБСIndicative
Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here.
Chemical composition
11 elements on file · weight %What this alloy is
Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade.
| Element | % by weight |
|---|---|
0.13–0.18 | |
0.7–1 | |
0.5–0.8 | |
≤ 0.03 | |
≤ 0.03 | |
1.8–2.3 | |
1.2–1.5 | |
≤ 0.3 | |
0.25–0.4 | |
≤ 0.3 | |
0.08–0.15 |
The scale is logarithmic, not the element’s raw share of the alloy — the only honest way to fit 0.01 % and 100 % in one picture, and it means every value here can be compared with every other.
| Element | As publishedsource text, verbatim | Min% by weight | Max% by weight | Bound |
|---|---|---|---|---|
| C | 0.13 - 0.18 | 0.130 | 0.180 | Range |
| Si | 0.7 - 1 | 0.700 | 1.000 | Range |
| P | max 0.03 | — | 0.030 | Max |
| S | max 0.03 | — | 0.030 | Max |
| V | 0.25 - 0.4 | 0.250 | 0.400 | Range |
| Cr | 1.8 - 2.3 | 1.800 | 2.300 | Range |
| Mn | 0.5 - 0.8 | 0.500 | 0.800 | Range |
| Ni | max 0.3 | — | 0.300 | Max |
| Cu | max 0.3 | — | 0.300 | Max |
| Nb | 0.08 - 0.15 | 0.080 | 0.150 | Range |
| Mo | 1.2 - 1.5 | 1.200 | 1.500 | Range |
The published column is the source string byte-for-byte, decimal comma and all; Min and Max are the parsed bounds. Elements not listed have no value on file — they are omitted, never inferred.
Predicted transformation temperatures
This grade's composition falls outside the published model's validated range (a low-alloy composition window), so no transformation temperature is predicted here.
Physical & mechanical properties
An absent property means we hold no value for it — it is left out rather than estimated, interpolated from a neighbouring grade, or filled from a handbook. It does not mean the property is undefined for the material.
Properties by condition
2 conditions · 37 valuessplav| Delivery state | RmN/mm² | ReN/mm² | A5% | Z% | KCUkJ/m² |
|---|---|---|---|---|---|
| Pipe | 550 | 380 | 18 | 50 | 600 |
| Pipe | 550 | 380 | 16 | 45 | 500 |
| Forging | 640 | 450 | 17 | 50 | 500 |
splav| Temperature°C | Densityg/cm³ | Elastic modulusGPa | Thermal expansion coefficient10^-6/K | Thermal conductivityW/(m·K) | Electrical resistivitynΩ·m |
|---|---|---|---|---|---|
| 20 | 7.85 | 224 | — | — | 450 |
| 100 | — | 219 | 12 | 34.8 | 460 |
| 200 | — | — | — | 34.3 | 520 |
| 300 | — | 205 | — | 34.1 | 600 |
| 400 | — | — | 14.5 | 33.9 | 670 |
| 500 | — | 187 | — | 33.7 | 770 |
| 600 | — | 176 | — | 33.5 | 950 |
| 700 | — | 164 | — | — | — |
Every figure holds only for the condition on its own row. Values are never merged across conditions or across sources, never averaged, and never interpolated between two rows. An em dash means no value on file — never zero. Figures are converted to the unit in the column header; the source’s own wording is kept and shown where the two differ.
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