40CrNiMo, 40CrNiMoA Steel Equivalent, Composition, Properties
Embed This Widget
Add the script tag and a data attribute to embed this widget.
Embed via iframe for maximum compatibility.
<iframe src="https://alloyfyi.com/iframe/entity//" width="420" height="400" frameborder="0" style="border:0;border-radius:10px;max-width:100%" loading="lazy"></iframe>Paste this URL in WordPress, Medium, or any oEmbed-compatible platform.
https://alloyfyi.com/entity//Add a dynamic SVG badge to your README or docs.
[](https://alloyfyi.com/entity//)Use the native HTML custom element.
Add one script tag to your page:
<div data-alloyfyi="entity" data-slug="40crnimo-40crnimoa-steel-equivalent-composition-properties"></div>
<script src="https://cdn.jsdelivr.net/npm/alloyfyi-embed@1/dist/embed.min.js" defer></script>
Embed as an iframe:
<iframe src="https://alloyfyi.com/iframe/entity/40crnimo-40crnimoa-steel-equivalent-composition-properties/?style=modern&theme=light" width="420" height="400" frameborder="0" loading="lazy" style="border:0;border-radius:10px;max-width:100%"></iframe>
Paste the URL in WordPress, Medium, or Ghost:
https://alloyfyi.com/ko/alloys/40crnimo-40crnimoa-steel-equivalent-composition-properties/
Shields.io-compatible SVG badge:
Web Component:
<alloyfyi-entity slug="40crnimo-40crnimoa-steel-equivalent-composition-properties"></alloyfyi-entity>
<script src="https://cdn.jsdelivr.net/npm/alloyfyi-embed@1/dist/embed.min.js" defer></script>
Family: Alloy Steel
Performance Ratings
Performance Radar
Composition
Mechanical Properties
| Hardness (Rockwell) |
Chemical Composition
| Element | Percentage (%) |
|---|---|
| C | 0.37 to 0.44 |
| P | ≤ 0.020 to ≤ 0.030 |
| S | ≤ 0.010 to ≤ 0.030 |
| Cr | 0.60 to 0.90 |
| Cu | ≤ 0.25 to ≤ 0.30 |
| Mn | 0.50 to 0.80 |
| Mo | 0.15 to 0.25 |
| Ni | 1.25 to 1.65 |
| Si | 0.17 to 0.37 |
Where to Buy 40CrNiMo, 40CrNiMoA Steel Equivalent, Composition, Properties
Links may earn a commission at no extra cost to you.
Description
40CrNiMoA steel is a Chinese alloy steel, has high strength, toughness and good hardenability, and has anti-overheating stability, but has high white point sensitivity, temper brittleness and poor weldability. Preheating is required before welding, and stress relief treatment is required after welding. 40CrNiMoA steel is used after quenching and tempering, and is used to manufacture important parts requiring good plasticity, high strength and large size. For example, heavy-duty shafts in heavy-duty machines, steam turbine shafts with diameters greater than 250 mm, blades, transmissions, fasteners, crankshafts, gears, etc., can also be used for rotor shafts and blades operating at temperatures exceeding 400 °C. 40CrNiMo, 40CrNiMoA Steel Chemical Composition