Type: | Square Steel, Flat Steel, Hexagonal Steel4 |
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Standard: | AISI, ASTM, DIN, JIS, GB, BS |
Composition: | Alloy Steel |
Technique: | Hot Rolled |
Shape: | Bar |
Surface Treatment: | Black, Pickled, Polished, or as Required |
Samples: |
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Customization: |
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Grade | C | Si | Mn | Cr | Ni | Mo | P | S | Cu |
20Mn2 | 0.17-0.24 | 0.17-0.37 | 1.40-1.80 | ≤0.30 | ≤0.30 | ≤0.10 | ≤0.030 | ≤0.030 | ≤0.30 |
SMn420 | 0.17-0.23 | 0.15-0.35 | 1.20-1.50 | ≤0.35 | ≤0.25 | ≤0.030 | ≤0.030 | ≤0.30 | |
1524 | 0.19-0.25 | 0.15-0.30 | 1.35-1.65 | - | - | ≤0.040 | ≤0.050 | ≤0.20 | |
22Mn6 | 0.18-0.25 | 0.10-0.40 | 1.30-1.65 | ≤0.40 | ≤0.40 | ≤0.10 | ≤0.025 | ≤0.035 | ≤0.30 |
18Mn5 1.0436 |
0.15-0.20 | ≤0.40 | 0.90-1.60 | ≤0.30 | ≤0.30 | ≤0.08 | ≤0.025 | ≤0.015 | ≤0.30 |
GB
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JIS
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SAE
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ISO
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W-Nr.
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NF EN/NF
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EN
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Digital brand
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20CrMn
20CrMnTi 20MnCr |
SMnC420H
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5120
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20MnCr5
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20MnCr5
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20MC5
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20MnCr5
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1.7147
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Commodity
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Cold Drawing / Drawn Flat/ Square / Rectangular / Rectangle / Hexagonal / Special Shape Rods Bars
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Grades
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Carbon steel
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SAE 1018 , A36, SS400, S235JR, Q235, SAE 1020, S20C , 1.0402, 20GB, CK22,
SAE 1045 ,S45C, C45, CK45, EN8 ,1.1191 |
Alloy steel
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SAE 5120 , 20Cr, Scr 420H, 20Cr4, SAE 5140 , 40Cr,SCr440, 520M40,
SAE 4130 , 30CrMo, SCM430, SCM420, SAE 4140 , 42CrMo4, EN19, SCM440, 708A42, 708M40, SAE 4340, 40CrNiMoA,871M40 , SNCM439 |
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Specification
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Round Bar
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5mm to 100mm
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Square bar
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5*5mm to 120*120mm
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Flat bar
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5*20mm to 20*100mm
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hex bar
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5mm to 120mm
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hexagonal bar
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5mm to 120mm (side to side)
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Length
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4-12m random length or as per request fixed length
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Surface
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Bright, or dark as per required
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Packing
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Wrapped by plastic clothes and steel strips
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Delivery Condition
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BK, BKW, GBK, NBK
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Container
Size |
20ft GP:5898mm(Length)x2352mm(Width)x2393mm(High)
40ft GP:12032mm(Length)x2352mm(Width)x2393mm(High) 40ft HC:12032mm(Length)x2352mm(Width)x2698mm(High) |
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Application
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hardware tools, auto parts, standard parts, fasteners common shaft, machinery manufacturing, light industry, hardware, bicycles,
cars, motorcycles, textile machinery, transformers and other machinery industry. |
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Advantages
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greater size accuracy, straightness and increased tensile and yield strength as well as improved machinability
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MOQ
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1 tons
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Theoretical weight table of square steel | |||||
Side length (mm) | Cross sectional area (cm2) | Theoretical weight (kg/m) | Side length (mm) | Cross sectional area (cm2) | Theoretical weight (kg/m) |
5mm | 0.25 | 0.196 | 30mm | 9.00 | 7.06 |
6mm | 0.36 | 0.283 | 32mm | 10.24 | 8.04 |
7mm | 0.49 | 0.385 | 34mm | 11.56 | 9.07 |
8mm | 0.64 | 0.502 | 36mm | 12.96 | 10.17 |
9mm | 0.81 | 0.636 | 38mm | 14.44 | 11.24 |
10mm | 1.00 | 0.785 | 40mm | 16.00 | 12.56 |
11mm | 1.21 | 0.95 | 42mm | 17.64 | 13.85 |
12mm | 1.44 | 1.13 | 45mm | 20.25 | 15.90 |
13mm | 1.69 | 1.33 | 48mm | 23.04 | 18.09 |
14mm | 1.96 | 1.54 | 50mm | 25.00 | 19.63 |
15mm | 2.25 | 1.77 | 53mm | 28.09 | 22.05 |
16mm | 2.56 | 2.01 | 56mm | 31.36 | 24.61 |
17mm | 2.89 | 2.27 | 60mm | 36.00 | 28.26 |
18mm | 3.24 | 2.54 | 63mm | 39.69 | 31.16 |
19mm | 3.61 | 2.82 | 65mm | 42.25 | 33.17 |
20mm | 4.00 | 3.14 | 70mm | 49.00 | 38.49 |
21mm | 4.41 | 3.46 | 75mm | 56.25 | 44.16 |
22mm | 4.84 | 3.80 | 80mm | 64.00 | 50.24 |
24mm | 5.76 | 4.52 | 85mm | 72.25 | 56.72 |
25mm | 6.25 | 4.91 | 90mm | 81.00 | 63.59 |
26mm | 6.76 | 5.30 | 95mm | 90.25 | 70.85 |
28mm | 7.84 | 6.15 | 100mm | 100.00 | 78.50 |
Sample diameter
d
mm
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Heat treatment or condition
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tensile strength
σb Mpa |
Yield point
σs Mpa |
Elongation
δ % |
hardness
HBW |
Impact absorbed energy
KV2 J |
Reduction of area
ψ
%
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d=15
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Secondary quenching+tempering
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≥1080
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≥850
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≥10
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≥45
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≤217
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≥55
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band | Main features | Application examples |
20CrMnTi |
Carburized carbon steel can also be used as quenched and tempered steel. After quenching and low-temperature tempering, it has good comprehensive mechanical properties and low-temperature impact toughness. After carburizing, it has good wear resistance and bending strength. The heat treatment process is simple, and the hot and cold working properties are good, but there is a tendency to temper embrittlement during high-temperature tempering | "It is a widely used and widely used alloy structural steel used in manufacturing various important parts of automobiles and tractors with a cross-sectional size of less than 30 mm, such as medium or heavy load, impact resistant, and high-speed components, such as gear shafts, gear rings, gears, cross shafts, main shafts supported by sliding bearings, worms, and tooth clutches. Sometimes, it can also be used instead of 20SiMoVB and 20MnTiB" |
30CrMnTi |
"Mainly titanium carburized carbon steel, sometimes also used as quenched and tempered steel. After carburizing and quenching, it has good wear resistance and high static strength, and has good heat treatment process. After carburizing, it can be directly cooled and quenched, and the quenching deformation is very small. During high-temperature tempering, it has tempering brittleness." | Used for manufacturing carburized parts with extremely high core strength, such as gear shafts, gears, worms, etc., as well as quenched and tempered parts, such as driving gears with large cross sections on automobiles and tractors |
20CrNi | It has high strength, high toughness, and good hardenability. After carburizing and quenching, the core has good toughness, high surface hardness, good machinability, medium plasticity during cold deformation, and poor weldability. It should be preheated to 100-150 ° C before welding, and is generally used after carburizing, quenching, and tempering | It is suitable for manufacturing heavy duty large and important carburized parts, such as spline shafts, shafts, keys, gears, and piston pins. It can also be used to manufacture quenched and tempered parts with high impact toughness |
40CrNi | Medium carbon alloy quenched and tempered steel, with high strength, high toughness, and high hardenability. Under quenched and tempered conditions, it has good comprehensive mechanical properties, good low-temperature impact toughness, and a tendency to temper embrittlement. Water cooling is prone to cracks. It has good machinability, but poor weldability. It is used under quenched and tempered conditions | Used for manufacturing important quenched and tempered parts with large cross-sectional dimensions for forging and cold stamping, such as connecting rods, discs, crankshafts, gears, shafts, screws, etc |
Packaging |
1. by bundles, each bundle weight under 3 tons, for small outer diameter steel bars, each bundle with 4 - 8 steel strips. 2. after making by bundle, covered with Polyethylene waterproof cloth. 3. make black paints painting on each bar, then make bundles |
20 feet container contains dimension | Length under 6000mm |
40 feet container contains dimension | Length under 12000mm |
By bulk vessel | Freight charge is low by bulk cargo, and large heavy sizes can not be loaded into containers can shipping by bulk cargo |
1. Who are we?
Our headquarter is located in Shandong, China. Since 2022, we have sold to North America (60.00%), Western Europe (14.00%) and South America (6.00%). There are about 11-50 people in our office.
2. How do we guarantee quality?
Always provide pre-production samples before mass production;
Always carry out final inspection before shipment;
3. What can you buy from us?
Copper, aluminum, die steel, titanium, customized machine parts
4. Why should you buy from us instead of other suppliers?
The company has 25 years of production experience. It has advanced precision production equipment, modern large warehouse, 200000 tons of inventory goods and a number of long-term stable cooperative customers.
5. What services can we provide?
Accepted delivery conditions: FOB, CFR, CIF, EXW
Accepted payment currency: US dollar, Euro, Japanese yen, Canadian dollar, Australian dollar, Hong Kong dollar, British pound, RMB, Swiss franc;
Accepted payment type: T/T, L/C, D/P D/A, PayPal;
Optional ports: Tianjin, Shanghai, Guangzhou;
Spoken: English, Chinese
6. How can we get your price?
A. We need the following information to quote for you:
1). Product Name
2). standard
3). Material grade (chemical composition)
4). dimension
5). amount
6). Special part drawin
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