GB · China · 1 designation

9Cr2V

9Cr2V is a grade designated under GB. Its recorded composition includes C 0.85–0.95%, Si 0.2–0.4%, V 0.1–0.25%, Cr 1.4–1.7% and Mn 0.2–0.45%. No cross-standard equivalents are recorded for this grade yet. Recorded mechanical properties include HB ≤ 229.

Designations 1

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Chemical composition

7 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 96.7 %Cr — 1.5 %C — 0.9 %Mn — 0.3 %Traces & impurities · 0.5 %

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

Element	% by weight
	0.85–0.95
	0.2–0.4
	0.2–0.45
	≤ 0.03
	≤ 0.03
	1.4–1.7
	0.1–0.25

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.

Element	As publishedsource text, verbatim	Min% by weight	Max% by weight	Bound
C	0.85-0.95	0.850	0.950	Range
Si	0.2-0.4	0.200	0.400	Range
P	≤0.03	—	0.030	Max
S	≤0.03	—	0.030	Max
V	0.1-0.25	0.100	0.250	Range
Cr	1.4-1.7	1.400	1.700	Range
Mn	0.2-0.45	0.200	0.450	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

Not enough recorded composition to predict a transformation temperature for this grade — missing: Ni, 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 values

1 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

GB /T 1299-2025

Single operationTest specimen

Quenching830–900 °C
Cooling Air

Supply condition

QuenchingTest specimen
AnnealingSupply condition

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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