GB · China · 2 designations

8Cr3

8Cr3 is a grade designated under GB. Its recorded composition includes C 0.75–0.85%, Si ≤ 0.4%, P ≤ 0.03%, Cr 3.2–3.8% and Mn ≤ 0.4%. We list one designation recorded for this grade, in the standard GOST.

Designations 2

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Also known as

2 designations · 2 standards · nothing hidden

This grade’s own namerecorded in our sources as this grade’s own designation under that standard.

Indicativetaken from a published cross-reference table; a close match, not a guarantee of interchangeability. Verify against the mill certificate before ordering.

Withdrawndesignation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.

GBChina · 1

8Cr3This grade’s own name

GOSTRussia / CIS · 1

8Х3Indicative

Every designation on file is listed — no truncation, no “+ n more”. Each one is itself a route that leads back here.

Chemical composition

6 elements on file · weight %

What this alloy is

Iron — the balance, never listed by a standard — 94.8 %Cr — 3.5 %C — 0.8 %Si — 0.4 %Traces & impurities · 0.5 %

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

Element	% by weight
	0.75–0.85
	≤ 0.4
	≤ 0.4
	≤ 0.03
	≤ 0.03
	3.2–3.8

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	0.75-0.85	0.750	0.850	Range
Si	≤0.4	—	0.400	Max
P	≤0.03	—	0.030	Max
S	≤0.03	—	0.030	Max
Cr	3.2-3.8	3.200	3.800	Range
Mn	≤0.4	—	0.400	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: 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.

Heat treatment

Supply condition

AnnealingSupply condition
QuenchingTest specimen

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

Looking for this grade under another name?

Search the catalogue by designation, material number or composition — every name on this page is itself a way in.

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