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GB · China · 1 designation

015Cr20Ni18Mo6CuN

015Cr20Ni18Mo6CuN is a grade designated under GB. Its recorded composition includes C ≤ 0.02%, Cr 19.5–20.5%, Mn ≤ 1%, Ni 17.5–18.5% and Mo 6–6.5%. No cross-standard equivalents are recorded for this grade yet. Further recorded physical values: E 158–200 GPa, λ 13.5–14 W/(m·K), α 16.5–18 ·10⁻⁶/K, cp 500 J/(kg·K) and ρ el. 850 nΩ·m; several of these are temperature-dependent.

Chemical composition

10 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 52.9 %Cr — 20 %Ni — 18 %Mo — 6.3 %Traces & impurities · 2.8 %

Logarithmic scale, 0.01 % to 100 % — every value here compares directly, decade by decade.

Element% by weight
≤ 0.02
≤ 0.8
≤ 1
≤ 0.03
≤ 0.01
19.5–20.5
6–6.5
17.5–18.5
0.5–1
0.18–0.22
CarbonSiliconManganesePhosphorusSulfurChromiumMolybdenumNickelCopperNitrogen
0.01 %0.1 %1 %10 %100 %

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.

ElementAs publishedsource text, verbatimMin% by weightMax% by weightBound
C≤0.020.020Max
N0.18-0.220.1800.220Range
Si≤0.80.800Max
P≤0.030.030Max
S≤0.010.010Max
Cr19.5-20.519.50020.500Range
Mn≤11.000Max
Ni17.5-18.517.50018.500Range
Cu0.5-10.5001.000Range
Mo6-6.56.0006.500Range

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

Elastic modulus200GPaExact
Thermal expansion coefficient16.510^-6/KExact
Thermal conductivity14W/(m·K)Exact
Specific heat capacity0.5J/(kg·K)Exact
Electrical resistivity0.85nΩ·mExact

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

1 conditions · 13 values
At temperatureno delivery state statedsource caishuku
Temperature°CElastic modulusGPaThermal expansion coefficient10^-6/KThermal conductivityW/(m·K)Specific heat capacityJ/(kg·K)
20195
10019016.513.5
20018217
30017417.5
40016618
50015818500

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.

Heat treatment

Supply condition

  • Solution annealingSteel product
  • Solution annealing

Conditions the standard permits on delivery. No temperature or medium is published for these, so no order and no alternation is implied.

Source: www.caishuku.com

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