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SAE 1020 Carbon Steel Tube Manufacturer and Supplier in India
Explore the great features of SAE 1020 steel! Being a top supplier of this very valuable steel, known for its adaptability, machinability, and dependability across many uses, makes us proud at Corten Steel Tube.
What is SAE 1020?
Among those common, daily carbon steels you can truly rely on is SAE 1020. It falls in a sweet spot with roughly 0.50% manganese and about 0.20% carbon. It is quite flexible for many different sectors since this combination offers a good mix of strength and the capacity to be formed without cracking.
You might also hear it called AISI 1020 or C1020 steel. This version really shines when it’s been cold-worked – either cold-rolled or cold-drawn. It’s one of the most popular plain carbon steels out there because it’s pretty easy to machine and weld. Often found in a smooth, turned and polished, or cold-drawn finish, this SAE AISI 1020 mild steel is also versatile, able to be hot-rolled or cold-drawn. It’s not particularly suited for hardening with heat or flames since it contains low carbon content.
AISI 1020 steel proves its mettle in a spectrum of applications, offering versatility and reliability. Semi-finished products, including square steel bars, flat steel bars, and round steel bars, serve as the building blocks for crafting truck, automotive, and agricultural equipment components. From axles and mechanical parts to cold head bolts and motor shafts, AISI 1020 is absolutely essential. Its adaptability covers design of ratchets, light gear, gear drives, worm gears, spindles, seat brackets, crane-cable drums, motor-brake wheels and more. Additionally it finds expression in steel channels, angles, I-beams and H-beams.
When forging C1020 steel, the process begins roughly at 2300ºF (1260ºC) and ends down to 1650ºF (900ºC). Accurate temperatures for shaping and finishing depends on how many times the steel is compressed and how complicated the part is. This is where experience really comes in handy to get it just right. After it’s forged, the parts are left to cool down in the air.
SAE 1020 Tubes Specification
Standard | ASTM, ASME, JIS, AISI, AMS, EN, SAE, DIN, NF, TOCT, DS, DTD, GB |
|---|---|
Outer Dimensions | 4.0mm – 60.0mm |
size | 5.0 – 1219.2 mm |
Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
Schedule | SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
Length | Single Random, Double Random, Standard & Cut length Pipe |
Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF, NO.1, NO.4, 2B, BA, HL, 8K, Mirror finish, etc |
Form | are available in the form of Round, Square, Hollow, Rectangular, Hydraulic, Coiled, Straight Pipes, “U ” Shape, PanCake Coils etc. |
Types | Seamless / ERW/ EFW / Welded / Fabricated / CDW / DOM / CEW |
End | Plain End, Beveled End, Threaded Pipe, Screwed ends |
Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
Manufacturing Technique | Cold drawn, hot drawn, bright annealed, solid solution, hot extruding |
Test Certificate | Manufacturer Test Certificate Laboratory Test Certificate from Govt. Approved Lab. Under Third Party Inspection |
Material Test Certificates (MTC) | Material Test Certificates (MTC) as per EN 10204/3.1B, EN 10204 3.1 and EN 10204 3.2, 100% Radiography Test Report, Heat Treatment Charts, Raw Materials Certificate, Third Party Inspection Report, Fumigation Certificates, HS Code Commercial Invoice, Form A for Generalised System of Preferences (GSP) |
AISI / SAE 1020 Carbon Steel Chemical Composition
| Element | Content |
|---|---|
| Carbon, C | 0.17 – 0.230 % |
| Iron, Fe | 99.08 – 99.53 % |
| Manganese, Mn | 0.30 – 0.60 % |
| Phosphorous, P | ≤ 0.040 % |
| Sulfur, S | ≤ 0.050 % |
AISI / SAE 1020 Carbon Steel Physical Properties
| Physical Properties | Metric | Imperial |
|---|---|---|
| Density | 7.87 g/cc | 0.284 lb/in³ |
AISI 1020 Carbon Steel Mechanical Properties
| Mechanical Properties | Metric | Imperial |
|---|---|---|
| Hardness, Brinell | 111 | 111 |
| Hardness, Knoop (Converted from Brinell hardness) | 129 | 129 |
| Hardness, Rockwell B(Converted from Brinell hardness) | 64 | 64 |
| Hardness, Vickers (Converted from Brinell hardness) | 115 | 115 |
| Tensile Strength, Ultimate | 394.72 MPa | 57249 psi |
| Tensile Strength, Yield | 294.74 MPa | 42748 psi |
| Elongation at Break (in 50 mm) | 36.5 % | 36.5 % |
| Reduction of Area | 66.0 % | 66.0 % |
| Modulus of Elasticity (Typical for steel) | 200 GPa | 29000 ksi |
| Bulk Modulus (Typical for steel) | 140 GPa | 20300 ksi |
| Poissons Ratio | 0.290 | 0.290 |
| Charpy Impact | ||
| @Temperature -30.0 °C/-22.0 °F | 16.9 J | 12.5 ft-lb |
| @Temperature -18.0 °C/-0.400 °F | 18.0 J | 13.3 ft-lb |
| @Temperature -3.00 °C/26.6 °F | 20.0 J | 14.8 ft-lb |
| @Temperature 10.0 °C/50.0 °F | 24.0 J | 17.7 ft-lb |
| @Temperature 38.0 °C/100 °F | 41.0 J | 30.2 ft-lb |
| @Temperature 65.0 °C/149 °F | 54.0 J | 39.8 ft-lb |
| @Temperature 95.0 °C/203 °F | 61.0 J | 45.0 ft-lb |
| @Temperature 150 °C/302 °F | 68.0 J | 50.2 ft-lb |
| Izod Impact | 125 J | 92.2 ft-lb |
| Shear Modulus (Typical for steel) | 80.0 GPa | 11600 ksi |
AISI 1020 Equivalents Grades
| AISI SAE ASTM 1020 steel equivalent material | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| US | Germany | China | Japan | ISO | |||||||
| Standard | AISI (UNS) | Standard | Grade | Standard | Grade (Material Number) | Standard | Grade | Standard | Grade | Standard | Grade |
| AISI SAE; ASTM A29/A29M | 1020 (G10200) | AMS | 5032D; 5045E; 5046 | DIN EN 10083-2; DIN EN 10250-2 | C22E (1.1151); C22 (1.0402) | GB/T 699 | 20 steel | JIS G4051 | S20C | ||
Applications of AISI 1020 Steel
Renowned for their adaptability, AISI 1020 steel finds uses in many different industrial fields, therefore supporting the dependability and usefulness of many components.
- Case Hardened Structural Applications: Simple structural uses of AISI 1020 steel in its case-hardened form prove great value. Its specialisation in the manufacturing of cold-headed bolts guarantees structural assembly durability and performance.
- Manufacturing of Axles: Axle manufacture prefers the steel since of its strength and versatility. Its great use in automotive and manufacturing applications can be attributed in part to its capacity to resist mechanical stress and offer stability.
- General Engineering and Machinery Parts: AISI 1020 steel plays a crucial role in general engineering, where its versatility and machinability contribute to the production of various machinery parts and components. Its reliability and consistent performance make it a staple in manufacturing processes.
- Shafts and Camshafts: The steel’s exceptional strength and machinability make it suitable for the production of shafts and camshafts. These important parts gain from the strong qualities of AISI 1020, which guarantees best operation in different mechanical systems.
- Gudgeon Pins and Ratchets: Gudgeon pins made from AISI 1020 steel help to ensure engines and machinery are dependable and efficient via their use in production. It also finds usage in the manufacturing of ratchets, where seamless operation depends on its strength and endurance.
- Light Duty Gears and Spindles: In applications requiring light-duty gears and spindles, AISI 1020 steel offers the perfect mix of machinability and strength. Its qualities fit components where dependability and accuracy are critical.
SAE AISI 1020 Steel Heat Treatment
Normalizing AISI 1020
Usually heating SAE AISI 1020 to about 915 °C (1675 °F), you would This procedure aids in the structural homogeneity of the steel.
Annealing AISI 1020
Annealing is like giving the steel a relaxing spa treatment to make it softer and easier to work with. Small carbon steel pieces (up to 3 inches thick) should be heated to roughly 855–900 °C (1575–1650 °F) then left to cool gradually in the furnace from 855 °C (1575 °F) to 700 °C (1290 °F) at a pace of roughly 28 °C (50 °F). Following this, the Brinell hardness—a gauge of its hardness—would be between 111-149 HB.
Reheating (Austenitizing) AISI 1020
Reheat the SAE 1020 steel to a temperature where its internal structure changes – this is known as austenitizing – if you wish to harden it. Hardening calls for heating it to roughly 760–790 °C (1400–1450 °F). Usually heating it to a higher temperature, between 900 and 925 °C (1650 to 1700 °F), you are going to build a hard outer coating by a process known as carburising.
Case Hardening AISI 1020
For 1020 carbon steel, you’d heat the surface in a special gas mixture (usually methane and a carrier gas) at around 970-955 °C. After this, you normally rapidly cool that outer layer straight from that high temperature in water or a salt solution (brine).
Typical Heat Treatment for Case Hardening 1020 Steel:
| Carbon temperature | Heat it to 900-925 °C (1650-1700 °F) and then cool it quickly in water or a caustic solution. |
|---|---|
| Reheat temperature | Then, you might reheat it to about 790 °C (1450 °F) and cool it again in water or a 3% sodium hydroxide solution |
| Carbonitriding temperature | Another option is to heat it to 790-900 °C (1450-1650 °F) and then cool it in oil. |
| Tempering (Optional) | Finally, you might gently heat it to 120-205 °C (250-400 °F) to relieve any stress and make it less likely to crack. This step isn’t always needed. |
Forging AISI 1020
AISI 1020 mild steel typically forged at 1290 °C (2350 °F).
Welding AISI 1020
- Preheat the metal before welding AISI SAE C1020 steel; likewise, retain the metal at a specific temperature during the welding (interpass temperature). The suggested temperatures rely on the thickness of the steel:
- For steel 50mm (2 inches) or thinner: Preheat and keep it above -12 °C if you’re using low hydrogen welding methods, or above 38 °C if you’re not.
- For steel thicker than 50mm but 100mm (around 4 inches) or less: Preheat and keep it at 93 °C if using low hydrogen methods, or 150 °C otherwise.
FAQs for SAE AISI 1020 Carbon Steel Tubes
SAE 1020 steel is equivalent to EN C20E (European standard) and UNI C20 (Italian standard).
Carbon Steel AISI 1020 is a commonly used plain carbon steel known for its strong strength-ductility balance. It can be toughened or carburized for improved performance. SAE 1020 carbon steel is a low-hardness, low-tensile strength alloy. The SAE 1020 Steel Tube has a Brinell hardness ranging from 119 to 235 and a tensile strength between 410 to 790 MPa.
1020 steel performs well with cold working and heat treatment processes. It has fair weldability. Common applications include shafts, lightly stressed gears, wear-resistant surfaces, pins, chains, and case-hardened components where core strength is not a primary concern. 1020 steel is ideal for case-hardened parts where high core strength is not critical.
To harden 1020 steel, heat it to a temperature between 1500°F and 1600°F, then perform a water quench. Afterward, it should be tempered. More commonly, 1020 steel is case-hardened through carburizing.
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