Sichuan Liaofu Special Steel Company is one of the most experienced manufacturers and suppliers of astm 4130 25crmo4 1.7218 steel pipe in China. With over 20 years' experience, our factory offer high quality products made in China with competitive price. Welcome to contact us for wholesale service.
ASTM 4130, also known as 25CrMo4 or 1.7218, is a low alloy steel containing chromium and molybdenum. The steel has high strength and toughness, good weldability and machinability, and excellent fatigue and corrosion resistance. It also has the characteristics of light weight, good durability and so on
ASTM 4130 Steel Applications:
This type of steel is used in the aerospace, automotive, and oil and gas industries
* Used to make frames for aircraft and racing cars
* Structural components, gears, shafts and hydraulic cylinders
* Greenhouse frame, mobile house
* Used in drilling and mining operations
* Used in spacecraft and satellite manufacturing
* Used in automobile exhaust system, suspension system
| Item | 4130 Carbon Steel Pipe |
| Length | 3-12M or as required |
| Outer diameter | 10mm-426mm |
| Wall thickness | 1-100mm |
| Standard | AISI,ASTM,DIN,JIS,GB,JIS,SUS,EN,etc. |
| Technique | Hot rolled/cold rolled |
| Surface Treatment | Black/Peeling/Polishing/Machined |
| Thickness tolerance | Control with in the standard, OD:+/-1%, WT:+/-5% |
| Material | 4130 |
| Coatings | Standard export packing |
| Export packing | Waterproof paper, and steel strip packed. Standard Export Seaworthy Package.Suit for all kinds of transport,or as required |
4130 chemical composition:
| Grade | C | Mn | Si | S | P |
| Q235A | 0.14-0.22 | 0.30-0.65 | ≤0.30 | ≤0.05 | ≤0.045 |
| Q235B | 0.12-0.20 | 0.30-0.70 | ≤0.30 | ≤0.045 | ≤0.045 |
| Q235C | ≤0.18 | 0.35-0.80 | ≤0.30 | ≤0.040 | ≤0.040 |
| Q235D | ≤0.17 | 0.35-0.80 | ≤0.30 | ≤0.035 | ≤0.035 |
4130 Mechanical Properties
| Mechanical Properties | Metric | US/Imperial |
| Tensile Strength, Ultimate | 400 – 550 MPa | – |
| Tensile Strength, Yield | 250 MPa | – |
| Elongation at Break | 20 % | 20 % |
| 23 % | 23 % | |
| Modulus of Elasticity | 200 GPa | 29000 ksi |
| Compressive Yield Strength | 152 MPa | 22000 psi |
| Bulk Modulus | 160 GPa | 23200 ksi |
| Poissons Ratio | 0.26 | 0.26 |
| Shear Modulus | 79.3 GPa | 11500 ksi |
Main products
We're the supplier of a wide range of stainless steel products ( ss plate/sheet, ss coil, ss tube/pipe, ss bar/rod of all shapes, channel steel, angel steel and etc), and other nonferrous metal products.
Various Standard and non-standard specifications are both available as customers request. All products we provided are strictly in line with the international standards.
Products of common specification or grades are adequate in stock, please feel free to contact us if you want a quote or more details about the specific products.
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