Basic Info.
Model NO.
4140/4130/1045 S45C ST52 ST44 42CrMn Q345D S355
Standard
AISI, JIS, ASTM, DIN, BS, GB
Surface Treatment
Black/Polished/Galvanized/Color Coated
Surface
Black, Pickled, Polished,Galvanized,Color Coated
Length
5.8m,6m,11.8m 12m or Any Length You Need
Processing Service
Bending, Welding, Decoiling, Punching, Cutting
Certificate
ISO 9001:2008/BV
Application
Construction ,Chemical ,Shipbuilding etc.
Price Term
EXW/Fca/Fob/CFR/CIF
Transport
by Container, Bulk Ship, Railway
Package
in Bundle with The Steel Strip or Waterproof Paper
Delivery Time
Within 7 Days
Key Words
Square Steel, Square Billet, Steel Bar, Steel Rod
Transport Package
Seaworthy Export Package
Specification
Q235/Q345/SS400/ST37-2/ST52/Q420/Q460
Product Description
Export Popular S355 Q345D Hot Rolled Carbon Steel MS Iron Square Billet Bar Cold Drawn Bright Mild Steel Square Solid Bar 45# 1020 Forged Alloy Steel Square Rod
Product Description
The material of steel Square bar is mainly carbon steel, which contains high carbon element. It has excellent mechanical properties, high strength, good toughness, strong plasticity, and good wear resistance and corrosion resistance. These properties make square steel perform well in various engineering fields.
There are many specifications of square steel, which are mainly distinguished according to their cross-sectional dimensions. Generally speaking, the larger the cross-sectional size of square steel, the stronger its bearing capacity. Common square steel specifications are 8#, 10#, 12#, 14#, 16#, etc., where the numbers represent the section width.
Square steel: It is solid, bar. Different from the square tube, it is hollow and belongs to the pipe. Steel (Steel): It is a material of various shapes, sizes and properties required by steel ingots, billets or steel products through pressure processing
Hot-rolled square steel refers to steel rolled or processed into a square cross-section. Square steel can be divided into two types: hot-rolled and cold-rolled; the side length of hot-rolled square steel is 5-250mm, and the side length of cold-drawn square steel is 3-100mm.
MECHANICAL PROPERTIES:
Yield Point = 36,000 psi
Tensile Strength = 58,000 psi
Elongation = 23% in 2"
Brinell Hardness = 133; Melting Point = 2600F
Product Parameters
Product Name | Carbon Steel Billet/Square Steel Bar/Mild Steel Square Billet |
Standard | ASTM, AISI, DIN, EN, GB, JIS, etc |
Model Number | ASTM 1010,1015,1020,1030,1035,1040,1045,1050,1055,1060,1022,1026,1033,1039,1053,1320,1330,1335,1340,1345,5115,5120,5130,5132,5135,5140,5145,5147,4118,4130,4135,4137,4140,4120,3140,etc |
Type | Square |
Surface | Pickled,Black,Bright,Polishing,Blasting,etc |
Specifications | Round bar: Diameter: 3mm~800mm Angle bar: Size: 3mm*20mm*20mm~12mm*100mm*100mm Square bar: Size: 4mm*4mm~100mm*100mm Hexagonal: Size: 2mm~100mm Flat bar: Thickness: 2mm~100mm Width: 10mm~500mm *Sizes are all customized, contact us for further details. :) |
Length | 3m,5.8m,6m,11.8m,12m or as required |
Application
| Chemical industry, shipping industry, manufacturing industry, construction,decorate Industry, electric power, pump shafts, sanitary wares ,furniture handles,boiler, high temperature resistant,low temperatureresistant, corrosion resistant. |
Advantages
| 1.Reasonable price with excellent quality |
2.Abundant stock and prompt delivery |
3.Rich supply and export experiencesincere service |
| (H*W) | H*B | t1 | t2 | r | cm2 | kg/m | IX | IY | ix | IY | Wx | WY |
| 100*100 | 100*100 | 6 | 8 | 10 | 21.9 | 17.2 | 383 | 134 | 4.18 | 2.47 | 76.5 | 26.7 |
| 125*125 | 125*125 | 6.5 | 9 | 10 | 30.31 | 847 | 294 | | 5.29 | 3.11 | 136 | 47 |
| 150*150 | 150*150 | 7 | 10 | 13 | 40.55 | 31.9 | 1660 | 564 | 6.39 | 3.73 | 221 | 75.1 |
| 175*175 | 175*175 | 7.5 | 11 | 13 | 51.43 | 40.3 | 2900 | 984 | 7.5 | 4.37 | 331 | 112 |
| 200*200 | 200*200 | 8 | 12 | 16 | 64.28 | 50.5 | 4770 | 1600 | 8.61 | 4.99 | 477 | 160 |
| #200*204 | 12 | 12 | 16 | 72.28 | 56.7 | 5030 | 1700 | 8.35 | 4.85 | 503 | 167 |
| 250*250 | 250*250 | 9 | 14 | 16 | 92.18 | 72.4 | 10800 | 3650 | 10.8 | 6.29 | 867 | 292 |
| #250*255 | 14 | 14 | 16 | 104.7 | 82.2 | 11500 | 3880 | 10.5 | 6.09 | 919 | 304 |
| 300*300 | #294*302 | 12 | 12 | 20 | 108.3 | 85 | 17000 | 5520 | 12.5 | 7.14 | 1160 | 365 |
| 300*300 | 10 | 15 | 20 | 120.4 | 94.5 | 20500 | 6760 | 13.1 | 7.49 | 1370 | 450 |
| 300*305 | 15 | 15 | 20 | 135.4 | 106 | 21600 | 7100 | 12.6 | 7.24 | 1440 | 466 |
| 350*350 | #344*348 | 10 | 16 | 20 | 146 | 115 | 33300 | 11200 | 15.1 | 8.78 | 1940 | 646 |
| 350*350 | 12 | 19 | 20 | 173.9 | 137 | 40300 | 13600 | 15.2 | 8.84 | 2300 | 776 |
| 400*400 | #388*402 | 15 | 15 | 24 | 179.2 | 141 | 49200 | 16300 | 16.6 | 9.52 | 2540 | 809 |
| #394*398 | 11 | 18 | 24 | 187.6 | 147 | 56400 | 18900 | 17.3 | 10 | 2860 | 951 |
| 400*400 | 13 | 21 | 24 | 219.5 | 172 | 66900 | 22400 | 17.5 | 10.1 | 3340 | 1120 |
| #400*408 | 21 | 21 | 24 | 251.5 | 197 | 71100 | 23800 | 16.8 | 9.73 | 3560 | 1170 |
| #414*405 | 18 | 28 | 24 | 296.2 | 233 | 93000 | 31000 | 17.7 | 10.2 | 4490 | 1530 |
| #428*407 | 20 | 35 | 24 | 361.4 | 284 | 119000 | 39400 | 18.2 | 10.4 | 5580 | 1930 |
| *458*417 | 30 | 50 | 24 | 529.3 | 415 | 187000 | 60500 | 18.8 | 10.7 | 8180 | 2900 |
| *498*432 | 45 | 70 | 24 | 770.8 | 605 | 298000 | 94400 | 19.7 | 11.1 | 12000 | 4370 |
| 150*100 | 148*100 | 6 | 9 | 13 | 27.25 | 21.4 | 1040 | 151 | 6.17 | 2.35 | 140 | 30.2 |
| 250*150 | 194*150 | 6 | 9 | 16 | 39.76 | 31.2 | 2740 | 508 | 8.3 | 3.57 | 283 | 67.7 |
| 250*275 | 244*175 | 7 | 11 | 16 | 5.24 | 44.1 | 6120 | 985 | 10.4 | 4.18 | 502 | 113 |
| 300*200 | 294*200 | 8 | 12 | 20 | 73.03 | 57.3 | 11400 | 1600 | 12.5 | 4.69 | 779 | 160 |
| 350*250 | 340*250 | 9 | 16 | 20 | 101.5 | 79.7 | 21700 | 3650 | 14.6 | 6 | 1280 | 292 |
| 400*300 | 390*300 | 10 | 14 | 24 | 136.7 | 107 | 38900 | 7210 | 16.9 | 7.26 | 2000 | 481 |
| 450*300 | 440*300 | 11 | 18 | 24 | 157.4 | 124 | 56100 | 8110 | 18.9 | 7.18 | 2550 | 541 |
| 500*300 | 482*300 | 11 | 15 | 28 | 146.4 | 115 | 60800 | 6770 | 20.4 | 6.8 | 2520 | 451 |
| 488*300 | 11 | 18 | 28 | 164.4 | 129 | 71400 | 8120 | 20.8 | 7.03 | 2930 | 541 |
| 600*300 | 582*300 | 12 | 17 | 28 | 174.5 | 137 | 103000 | 7670 | 24.3 | 6.63 | 3530 | 511 |
| 588*300 | 12 | 20 | 28 | 192.5 | 151 | 118000 | 9020 | 24.8 | 6.85 | 4020 | 601 |
| #594*302 | 14 | 23 | 28 | 222.4 | 175 | 137000 | 10600 | 24.9 | 6.9 | 4620 | 701 |
| Grade | Dia(mm) | Chemical Composition (%) |
| C | Si | Mn | P | S | Ni | Cr | Cu | Ti | Mo |
| 45 | 18-60 | 0.42-0.50 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.25 | ≤0.25 | | |
| 55 | 0.52-0.60 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.25 | ≤0.25 | | |
| 40Mn2 | 0.37-0.44 | 0.17-0.37 | 1.40-1.80 | ≤0.035 | ≤0.035 | | ≤0.30 | | | |
| 20CrMnTi | 0.17-0.23 | 0.17-0.37 | 0.80-1.10 | ≤0.035 | ≤0.035 | | 1.00-1.30 | | 0.04-0.10 | |
| 20CrMo | 0.17-0.24 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.035 | | 0.80-1.10 | | | 0.15-0.25 |
| 30CrMo | 0.26-0.34 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.035 | | 0.80-1.10 | | | 0.15-0.25 |
| 35CrMo | 0.32-0.40 | 0.17-0.37 | 0.40-0.70 | ≤0.035 | ≤0.035 | | 0.80-1.10 | | | 0.15-0.25 |
| 42CrMo | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | | 0.90-1.20 | | | 0.15-0.25 |
| 60Si2MnA | 0.38-0.45 | 0.17-0.37 | 0.50-0.80 | ≤0.035 | ≤0.035 | | 0.90-1.20 | | | |
| Grade | Mechanical property |
| (Quenching, tempering, longitudinal) |
| Tensile strength | Yield strength | Elongation | Elongation | Percentage reduction of area | Impact absorbing energy |
| (σb/MPa) | (σs/MPa) | (δ5/%) | (δ10/%) | (ψ/%) | (AkU2/J) |
| 45 | ≥600 | ≥335 | ≥16 | | ≥40 | 39 |
| 55 | ≥645 | ≥380 | ≥13 | | ≥35 | - |
| 40Mn2 | ≥885 | ≥735 | ≥12 | | ≥45 | 55 |
| 20CrMnTi | ≥1080 | ≥850 | | ≥10 | ≥45 | 55 |
| 20CrMo | ≥885 | ≥685 | ≥12 | | ≥50 | 78 |
| 30CrMo | ≥930 | ≥785 | ≥12 | | ≥50 | 63 |
| 35CrMo | ≥980 | ≥835 | ≥12 | | ≥45 | 63 |
| 42CrMo | ≥1080 | ≥930 | ≥12 | | ≥45 | 63 |
| 60Si2MnA | ≥1274 | ≥1176 | ≥5 | | ≥25 | - |
| Theoretical weight table of square steel bar |
| Side length(mm) | Sectional area(cm2) | Theoretical weight (kg/m) | Side length | Sectional area(cm2) | Theoretical weight (kg/m) |
| 5mm | 0.25 | 0.196 | 30mm | 9 | 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 | 0.785 | 40mm | 16 | 12.56 |
| 11mm | 1.21 | 0.95 | 42mm | 17.64 | 13.85 |
| 12mm | 1.44 | 1.13 | 45mm | 20.25 | 15.9 |
| 13mm | 1.69 | 1.33 | 48mm | 23.04 | 18.09 |
| 14mm | 1.96 | 1.54 | 50mm | 25 | 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 | 28.26 |
| 18mm | 3.24 | 2.54 | 63mm | 39.69 | 31.16 |
| 19mm | 3.61 | 2.82 | 65mm | 42.25 | 33.17 |
| 20mm | 4 | 3.14 | 70mm | 49 | 38.49 |
| 21mm | 4.41 | 3.46 | 75mm | 56.25 | 44.16 |
| 22mm | 4.84 | 3.8 | 80mm | 64 | 50.24 |
| 24mm | 5.76 | 4.52 | 85mm | 72.25 | 56.72 |
| 25mm | 6.25 | 4.91 | 90mm | 81 | 63.59 |
| 26mm | 6.76 | 5.3 | 95mm | 90.25 | 70.85 |
| 28mm | 7.84 | 6.15 | 100mm | 100 | 78.5 |
Detailed Photos
Carbon Steel Hot Rolled Square Steel Bar
Hot-rolled square steel refers to steel rolled or processed into a square cross-section. Square steel can be divided into two types: hot-rolled and cold-rolled; the side length of hot-rolled square steel is 5-250mm, and the side length of cold-drawn square steel is 3-100mm.
The manufacturing process of steel square bar includes hot rolling and cold drawing. Hot-rolled square steel is made by heating the billet to a certain temperature and pressing it through rolling machinery. The surface of hot-rolled square steel is relatively rough, but its mechanical properties are better. Cold-drawn square steel is made by cold-working hot-rolled square steel. Its surface is smooth, but its strength and toughness are slightly lower than hot-rolled square steel.
Product Advantages
Product Application
Square Steel Bar Usage:
The application fields of steel Square bar are very wide. In the field of construction, square steel is often used in structures such as beams and columns, foundations, bridges, etc., and its strength and stability can ensure the safety of buildings. In the field of machinery manufacturing, square steel is often used to manufacture machine bases, bearing housings and other components. Its strength and durability can ensure the stability and service life of the machine. In the field of logistics, square steel is often used to make shelves, and its load-bearing capacity and stability can ensure the safe storage of goods.
Packaging & Shipping
Our Advantages:
Quality first: production and inspection in strict accordance with production standards;
Price advantage: discounts based on real market prices;
Transaction security: There will be no loss of customer funds;
After-sales guarantee: the customer's problem is our problem;
Long-term cooperation: quality assurance, price advantage, sincere service can last for a long time. Certifications
Our Service
Top quality, Competitive price, Strict inspection,Sufficient inventory, Quick delivery
High quality service!
Any questions or more details,pls don't hesitate to contact us online.
Address:
Huitong Metal Logistics Park B, Liaocheng, Shandong, China
Business Type:
Manufacturer/Factory, Trading Company
Business Range:
Construction & Decoration, Metallurgy, Mineral & Energy
Company Introduction:
Shandong Chicago Materials Ltd. Is a renowned and highly esteemed exporter of steel products, specializing in a wide array of offerings that cater to diverse industrial needs. Our extensive range of products encompasses aluminum, steel plates, steel pipes, steel sheet piles, and construction steel, including rebar, beams, rounds, and flats. With a strong foothold in the market, we primarily serve regions in Southeast Asia, the Middle East, Russia, North America, and Central Asia.
To ensure seamless and prompt delivery of our products to our valued customers, we have strategically established warehouses and processing plants across various cities in China. This strategic placement allows us to efficiently manage and expedite the transportation of goods, guaranteeing timely delivery and customer satisfaction. Our dedicated logistics department meticulously oversees all aspects of transportation, ensuring the smooth operation of the entire supply chain.
One of our key differentiating factors is our unwavering commitment to quality and reliability. We take immense pride in the fact that our products hold comprehensive certifications, serving as a testament to their superior quality. These certifications not only instill confidence in our customers but also reinforce our dedication to providing top-notch materials at competitive prices. We understand the significance of quality assurance and strive to surpass industry standards, setting us apart from our competitors.
At Shandong Chicago Materials, we constantly strive to exceed the expectations of our customers by offering exceptional products and quality services. We firmly believe in building long-term partnerships with our clients, understanding their unique requirements, and tailoring our offerings accordingly. With our extensive product range, efficient logistics, and unwavering commitment to quality, we are confident in our ability to meet and surpass the diverse needs of our esteemed customers.
Shandong Chicago Materials Ltd. Stands as a leading exporter of steel products, offering an extensive range of offerings to cater to various industrial requirements. Our strategically placed warehouses and processing plants ensure efficient delivery, while our comprehensive certifications guarantee quality and reliability. We pride ourselves on surpassing customer expectations and look forward to forging lasting partnerships with our valued clients.