SteelEquivalents.com

Explore

MaterialsSteel materials by standardCategoriesSteel material categoriesSearchSteel grade searchCalculatorsSteel calculatorsServicesCutting, machining and finishing to order
Latest news
Knowledge & SafetySteel WikiGrades, standards and metallurgy explained
Help & SupportContactGet in touch with the teamFAQCommon questions answeredSupport Chat pageFAQs, guides & live chat in one place
Settings

Appearance

Accent

Language

Welcome

Sign in to save favorites and manage your account.

UNS · United States · 2 designations

S11800

S11800 is a designation in UNS for the material held under material number 1.4530, also listed as X1CrNiMoAlTi12-9-2. It is a material in the category Others. We list 2 designations recorded for this grade, in the standards DIN / EN and UNS.

If you came for one of these

The most-used names for this grade.

About Others

These are miscellaneous metallic alloys that do not fit a more specific material family and may be based on iron, nickel, cobalt, copper or other alloy systems. They are selected for applications requiring particular combinations of strength, hardness, toughness, wear resistance or resistance to demanding service conditions.

This describes the material class as a whole. Always confirm the individual grade against the standard before ordering.

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Withdrawndesignation no longer current — a separate column from the two above, so a name can be same grade and withdrawn at once.
UNSUnited States · 1
  • S11800This grade’s own name

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

Iron — the balance, never listed by a standard — 75.7 %Cr — 12 %Ni — 9 %Mo — 2 %Traces & impurities · 1.3 %

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

Element% by weight
≤ 0.015
≤ 0.1
≤ 0.1
0.01
0.005
11.5–12.5
1.85–2.15
8.5–9.5
0.6–0.8
0.28–0.37
0.01
CarbonSiliconManganesePhosphorusSulfurChromiumMolybdenumNickelAluminiumTitaniumNitrogen
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≤0,0150.015Max
N0,010.0100.010Exact
Al0,60-0,800.6000.800Range
Si≤0,100.100Max
P0,010.0100.010Exact
S0,0050.0050.005Exact
Ti0,28-0,370.2800.370Range
Cr11,5-12,511.50012.500Range
Mn≤0,100.100Max
Ni8,50-9,508.5009.500Range
Mo1,85-2,151.8502.150Range

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

Density7,85g/cm³Exact

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 · 1 values
By delivery stateSolution annealedsource steelnumber
Delivery stateHB
Solution annealed363

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.

Similar grades — and why

Selection rule, stated so you can disagree with it: same number class 1.4, a shared category, and a published range for Cr / Ni that overlaps this grade’s. These are neighbours in composition space — they are not equivalents, and none is claimed to be interchangeable with this grade.

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.