AISI 4130 Steel Coil, JIS SCM430, DIN 1.7218
AISI 4130 steel coil is a low alloy steel containing chromium, molybdenum and medium carbon, which is very similar to 4140 steel. It also has the characteristics of high strength and toughness, high hardenability, good weldability and good machinability. AISI 4130 steel has relatively high requirements for welding and heat treatment. With proper heat treatment, it is easier to process and has excellent ductility after annealing. 4130 steel composition and more information as below.
| AISI 4130 Steel Coil Sheet Plate Supply | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Type | Specification | ||||||||||||||||||
| Coil/Sheet/Plate | Size : 1000 mm x 2000 mm, 1220 mm x 2440 mm, 1500 mm x 3000 mm, 2000 mm x 2000 mm, 2000 mm x 4000 mm,etc Length : 2000mm, 2440mm, 3000mm, 5800mm, 6000mm, etc | ||||||||||||||||||
4130 Steel Coil Grade Equivalent Chart
| Country | USA | Germany/UK/France | JAPAN | Russia |
|---|---|---|---|---|
| Standard | ASTM A29/A29M-05 | EN 10083/3-2006 | JIS G4053-2008 | TOCT 4543-71 |
| Grades | 4130 | 25CrMo4 (1.7218) | SCM430 | 30XMA |
4130 Steel Coil Chemical Composition
| STAND | C(%) | Mn(%) | P(%) | S(%) | Si(%) | Cr(%) | Mo(%) | Ni(%) | Cu(%) |
|---|---|---|---|---|---|---|---|---|---|
| ASTM A29/A29M-05 | 0.28-0.33 | 0.40-0.60 | MAX 0.035 | MAX 0.040 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 | / | / |
| EN 10083/3-2006 | 0.22-0.29 | 0.60-0.90 | MAX 0.025 | MAX 0.035 | MAX 0.40 | 0.90-1.20 | 0.15-0.30 | / | / |
| JIS G4053-2008 | 0.28-0.33 | 0.60-0.90 | MAX 0.030 | MAX 0.030 | 0.15-0.35 | 0.90-1.20 | 0.15-0.30 | MAX 0.25 | / |
| TOCT 4543-71 | 0.26-0.34 | 0.40-0.70 | MAX 0.025 | MAX 0.025 | 0.17-0.37 | 0.80-1.10 | 0.15-0.25 | / | / |
4130 Steel Coil Physical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.85 g/cm³ | 0.284 lb/in³ |
| Melting point | 1432°C | 2610°F |
1.7218 Steel Coil Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength, ultimate | 560MPa | 81200psi |
| Tensile strength, yield | 460MPa | 66700psi |
| Modulus of elasticity | 190-210GPa | 27557-30458ksi |
| Bulk modulus (Typical for steel) | 140GPa | 20300ksi |
| Shear modulus (Typical for steel) | 80GPa | 11600ksi |
| Poissons ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (in 50 mm) | 21.50% | 21.50% |
| Reduction of area | 59.6 | 59.60% |
| Hardness, Brinell | 217 | 217 |
| Hardness, Knoop (Converted from Brinell hardness) | 240 | 240 |
| Hardness, Rockwell B (Converted from Brinell hardness) | 95 | 95 |
| Hardness, Rockwell C (Converted from Brinell hardness, value below normal HRC range, for comparison purposes only.) | 17 | 17 |
| Hardness, Vickers (Converted from Brinell hardness) | 228 | 228 |
| Machinability (Annealed and cold drawn. Based on 100% machinability for AISI 1212 steel.) | 70 | 70 |
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AISI 4130 Steel Coil Application
AISI 4130 steel coil contains chromium and molybdenum as reinforcements and is easy to weld, critical for fabrication, welding, cutting and other high stress, high temperature applications. Commonly used in the following industries:
(1) Medium-sized machinery manufacturing
It is mainly used to manufacture quenched and tempered parts with large cross-section and working under high stress conditions;
(2) Industrial manufacturing
Commonly used to make milling cutters and tools;
(3) Automobile industry
Manufacture of vehicle parts, gears, bearings, etc.;
There are also industries such as aerospace, oil and gas industries, and chemicals.
4130 Steel Coil Characteristics
- Easy to weld, easy to process
- Excellent ductility
- Corrosion resistance, good heat resistance
- High strength, high toughness
- High hardenability and wide application
- Good machinability
4130 Steel Coil Heat Treatment
1. 4130 Steel Annealing
Once 4130 steel has been forged into sheet or coil, it can be annealed immediately.
In a furnace, it can be annealed at 860°C (1575°F) followed by air cooling at 482°C (900°F).
The main reason for annealing 4130 steel is to obtain a structure suitable for machining. The final structure obtained by annealing the steel alloy makes it ideal for forming simple shapes such as coils.
2. 4130 Steel Normalizing
The normalizing process heats the steel to a higher temperature than annealing, usually 900°C (1650 º F), but can fluctuate around 10 º C (50 º F) due to production environment or experience.
Occasionally, normalizing may be done on rolled or forged steel to condition it prior to heat treatment. For example, a higher temperature value of 910 °C is used before the steel is quenched and tempered. If normalization is final processing, 890 °C will be used.
The process uses such high temperatures to create conditions for the steel to transform from ferrite to austenite, which is then air cooled until complete.
3. 4130 Steel Hardening
Hardening of 4130 steel can be done by cold working or heat treatment with the aim of changing the properties of 4130 steel by increasing its hardness.
4130 steel is typically austenitized at 1500 to 1600 º F (815 to 870 º C) to convert all trace constituents to austenite. The 4130 steel hardening treatment produces martensite after the alloy is quenched.
4. 4130 Steel Tempering
Tempering of AISI 4130 steel is carried out between 398 and 565°C (750 and 1050°F), depending on the desired strength level. The purpose is to relieve the stress of the metal after hardening. The lower the tempering temperature, the greater the strength. Different tempering temperatures will produce different results.
ASTM 4130 Steel Coil Forged
Forging of AISI 4130 steel can be performed at temperatures between 950 °C and 1230 °C (1750 and 2250 ºF). The lower the temperature, the finer the grains will be. Too low a temperature may affect the uniformity of the structural section, requiring normalizing before heat treating the steel.
4130 Steel Coil Supply
4130 steel coil is widely used in various fields because of its toughness, ease of processing and weldability.We Songshun Steel have our own cutting and processing equipment. Specifications can be cut and customized according to your requirements.
We are a professional special steel stockist and supplier with high quality booths for many years. As a professional 4130 steel coil supplier, please contact us if you have any requirements for AISI 4130/DIN 1.7218 steel material. Songshun Steel is always with you.
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Manufacturing
With 7000 tons of hydraulic forging press, electric slag furnace and other high-end production equipment, we produce a great variety of steels with the best quality in China.
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In order to control the quality, we have complete testing methods to make sure satisfy the customer needs, including Chemical Analysis, Ultrasonic Test and so on.
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We keep a mass stock are over 20000 tons for various steel type, including steel round bar, steel sheet, alloy steel, carbon steel, stainless steel, mold steel, steel coil and etc.
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For container shipment, standard packing and bundle round bar and flat bar would be applied. It is necessary to fasten & reinforcement would be done to ensure the safety and better unloading at the destination port.
For less than container shipment, wooden box package would be applied for different size materials. For milled or grounded materials, the anti-rust oil would be needed to ensure the surface condition, within the wooden box.
