Introduction
Yuhuana hongqian machinery co.,ltd is professional cnc parts manufacture in china. we are professional supply different type of tube fitting and hose fitting, bulkead fittings , and also sometimes will meet hydraulic fitting and pneumatic connector place order for custom made cnc turning parts and cnc machining parts based on their demand .
As a professional cnc machined parts manufacture , we frequently get the enquiries for the 1020 and Q235 Steel fittings .
Today we focus on to introduce the material 1020 steel and material Q235.
What is 1020 steel ?
1020 carbon steel is a widely used low-carbon (mild) steel alloy with a typical carbon content between 0.17% and 0.23%. Its composition — mostly iron with small amounts of manganese, sulfur, and phosphorus — gives 1020 steel excellent ductility, weldability, and machinability, making it ideal for manufacturing hex nut, shaft , elbow connectors , pipe joints , bulkead fittings, stamp parts , cnc turning parts and industrial machinery parts.
Follow is 1020 Carbon Steel Chemical Composition
| Element | Content (%) |
|---|---|
| Carbon (C) | 0.17 – 0.23 |
| Manganese (Mn) | 0.30 – 0.60 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.050 |
| Iron (Fe) | Balance (typically 99% – 99.53%) |
What does 1020 mean in steel?
Frist let understand what is 1020 this four number means and what tell us about the steel’s composition and properties?
To answer this properly, the explanation should include:
The first two digits (10) indicate the type of steel.
“10” means it is a plain carbon steel with no significant alloying elements.
The last two digits (20) indicate the approximate carbon content.
“20” corresponds to about 0.20% carbon (actual range 0.17–0.23%).
1020 follows the AISI/SAE numbering system used to classify carbon and alloy steels
What is the equivalent of 1020 steel?
| Region / Country / | Standard | Equivalent Grade |
|---|---|---|
| USA / North America | AISI / SAE / ASTM | 1020 |
| China | GB / GB-T | 20# steel (sometimes “20 steel”) |
| Europe / Germany (EN / DIN) | EN 10083-2 / DIN / EN / ISO | C22 (also referred as 1.0402) |
| United Kingdom / British Standards | BS / EN / BS-970 (when referenced under EN) | 070M20 / EN3B (sometimes used as equivalent) |
| Japan | JIS (Japanese Industrial Standard) | S20C |
| Korea | KS (Korean Standard) (note: less commonly used internationally, but occasionally referenced) | SS20 |
| Russia / CIS (GOST) / Others | GOST / Local Carbon-steel Standards (in broad references) | 20 (simple “20” carbon steel equivalent) |
