70Si2CrA
70Si2CrA is a grade designated under GB. Its recorded composition includes C 0.65–0.75%, Si 1.4–1.7%, P ≤ 0.03%, Cr 0.2–0.4% and Mn 0.4–0.6%. No cross-standard equivalents are recorded for this grade yet. Recorded mechanical properties include Rm 785–1177 N/mm² and A ≥ 8%; these figures vary with the delivery condition and dimension.
- Designations 1
Chemical composition
7 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 |
|---|---|
0.65–0.75 | |
1.4–1.7 | |
0.4–0.6 | |
≤ 0.03 | |
≤ 0.03 | |
0.2–0.4 | |
≤ 0.03 |
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 | 0.65-0.75 | 0.650 | 0.750 | Range |
| Si | 1.4-1.7 | 1.400 | 1.700 | Range |
| P | ≤0.03 | — | 0.030 | Max |
| S | ≤0.03 | — | 0.030 | Max |
| Cr | 0.2-0.4 | 0.200 | 0.400 | Range |
| Mn | 0.4-0.6 | 0.400 | 0.600 | Range |
| Ni | ≤0.03 | — | 0.030 | Max |
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
Not enough recorded composition to predict a transformation temperature for this grade — missing: Mo.
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
0 conditions · 0 values3 further values are held for this grade under a condition the source did not name — a bound with no quantity attached. They are withheld rather than shown against a guessed condition.
Heat treatment
Supply condition
- 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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