Carbon Steel Round Bar for Chain Steel
Chain steel is a specially designed type of steel material that is used for manufacturing chains.Chains are widely used in various industries and applications, including lifting and rigging, transportation, construction, agriculture, and more.The steel used for chains needs to possess specific properties to ensure strength, durability, and resistance to wear and fatigue.
Being one of the noted manufacturer, stockists and suppliers, we offer chain steel grades as 20Mn steel, 40Mn steel, and 45Mn steel.Moreover, the Carbon Steel Round Bar are provided by us in various sizes as per the client’s needs.
We prioritize the use of high-quality raw materials sourced from reliable suppliers. Our Chain Steel and Carbon Steel Round Bars undergo rigorous testing on various parameters to ensure exceptional quality and flawlessness.We leverage advanced manufacturing technologies and techniques in the production of our Chain Steel and Carbon Steel Round Bars.Our offered Carbon Steel Round Bar product series includes Mild Steel Round Bars, Alloy Steel Round Bars, Bearing Steel Round Bars, Free Cutting Steel Round Bars and Carbon Steel Round Bars. These products are tested on various parameters in order to ensure flawlessness of the product.
Commonly used steel grades for chains include:
- 20Mn Steel
20Mn chian steel is a type of low carbon alloy steel that has good strength, toughness, and hardenability. It is usually used for manufacturing heavy-duty chains, such as lifting chains, conveyor chains, and mine chains. The properties of 20Mn steel make it suitable for use in high-temperature and high-stress environments, such as those found in mining and construction.
20Mn has good toughness after hot rolling or normalizing treatment. The material 20Mn is widly used for gear, crankshaft, bracket, a chain, screw, nut, welding structure, manufacturing oil tank, etc.
- 40Mn Steel
40Mn steel is a higher carbon alloy steel that has excellent hardenability and fatigue strength. It is typically used for manufacturing medium-duty chain products, such as transmission chains, motorcycle chains, and agricultural chains. The high strength and toughness of 40Mn steel make it suitable for use in conditions of high stress and abrasion.
- 45Mn Steel
45Mn has higher strength, hardness, wear resistance and good toughness.
45Mn is a type of high carbon alloy steel that has good hardenability, wear resistance, and fatigue strength. It is mainly used for manufacturing heavy-duty chains, such as crane chains and oil rigging chains. The properties of 45Mn steel make it suitable for use in conditions of high wear and tear, as well as high load-bearing applications.
Carbon Steel Round Bar Specification
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Round bar |
Diameter:5~1200mm |
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Hexagonal bar |
Size: 2mm~100mm |
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Flat bar |
Thickness |
0.3~200mm |
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Width |
1~2500mm |
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Square bar |
Size: 1mm*1mm~800mm*800mm |
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| Standards | 20Mn:ASTM A510 | ||
| 40Mn:AISI 1040 | |||
| 45Mn:AISI 1045 | |||
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Material |
20Mn | ||
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40Mn |
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45Mn,etc |
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Length |
2m, 5.8m, 6m, or as required. |
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Surface |
Black, peeled, polishing, bright, sand blast, hair line, etc. |
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Price Term |
Ex-work, FOB, CFR, CIF, etc. |
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Delivery Time |
Standard size is in stock,prompt delivery or as order's quantity. |
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Carbon Steel Round Bar Chemical Composition
| Grade |
Chemical composition %: |
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C |
Si |
Mn |
S |
P |
Cr |
Ni |
Cu |
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20Mn |
0.17-0.24 |
0.17-0.37 |
0.7-1.00 |
≤0.035 |
≤0.035 |
≤0.25 |
≤0.25 |
≤0.25 |
| Grade |
Chemical composition %: |
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C |
Si |
Mn |
S |
P |
Cr |
Ni |
Cu |
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40Mn |
0.37～0.45 |
0.17～0.37 |
0.50～0.80 |
≤0.030 |
≤0.035 |
≤0.25 |
≤0.25 |
≤0.25 |
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Grade |
C |
Si |
Mn |
Cr |
P |
S |
Ni |
Cu |
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45Mn |
0.42-0.5 |
0.17-0.37 |
0.5-0.8 |
≤0.25 |
≤0.035 |
≤0.035 |
≤0.3 |
≤0.25 |
45Mn Mechanical Properties
| Grade |
Delivery State |
T.S. |
Y.S. |
A,% |
Z,% |
Hardness, |
Forging ratio |
Grain Size |
Nonmetal ratio |
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Hot rolled, |
Annealing |
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45Mn |
Hot rolled, forged, or heat treatment |
600 |
355 |
16 |
40 |
229 |
197 |
≥ 4:1 |
≥ 6 |
≤ 2.0 |
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Grade |
Tensile Strength (Mpa) |
Yield Strength (Mpa) |
Elongation in 100-150 mm(%) |
Impact value |
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40Mn |
570(58) |
335(34) |
19 |
47 |
| Grade |
Mechanical properties: |
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Tensile strength σb |
Yield strength σb |
Elongation σb |
reduction of area |
Hardness |
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min |
min |
min |
min |
max |
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20Mn |
450(46) |
275(28) |
24 |
50 |
197HB |
Carbon Steel Round Bar Physical Properties
| Grade | Physical Properties | Metric | Imperial |
| 20Mn | Density | 7.85 g/cm3 | 0.284 lb/in3 |
| 40Mn | Density | 7.85 g/cm3 | 0.284 lb/in3 |
Chain Carbon Steel Applcation
Chain steel is used in a wide range of different applications, including:
- Lifting and hoisting equipment: Chain steel is commonly used in lifting and hoisting equipment, such as cranes and hoists.
- Transportation equipment: Chain steel is used in transportation equipment, such as conveyor belts, transmission chains, and motorcycle chains.
- Mining and construction equipment: Chain steel is used in mining and construction equipment, such as drilling rigs and excavators.
- Agriculture and forestry equipment: Chain steel is used in agriculture and forestry equipment, such as harvesters and wood chippers.
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