Product Description
Compared with ordinary carbon structural steel, the content of sulfur, phosphorus and other non-metallic inclusions in high-quality carbon structural steel is lower. According to the different carbon content and use, this type of steel can be roughly divided into three categories:
low carbon steel with carbon content less than 0.25% C, especially 08F, 08Al, etc. with carbon content less than 0.10%, which are widely used for deep-drawing parts such as automobiles, cans, etc. due to their good deep-drawing property and weldability. 20G is the main material for manufacturing ordinary boilers. In addition, low carbon steel is also widely used as carburizing steel for mechanical manufacturing:
1.0.25~0.60% C is medium carbon steel, which is mostly used in the quenched and tempered state to make parts in the machinery manufacturing industry.
2.Higher than 0.6% C is high carbon steel, which is mainly used for manufacturing springs, gears, rolls, etc. According to the different manganese content, it can be divided into two steel groups: ordinary manganese content (0.25~0.8%) and high manganese content (0.7~1.0% and 0.9~1.2%). Manganese can improve the hardenability of steel, strengthen ferrite, and improve the yield strength, tensile strength and wear resistance of steel. Generally, "Mn" is added after the grade of steel with high manganese content, such as 15Mn and 20Mn, to distinguish it from carbon steel with normal manganese content.
| Unified number Code | Brand | Chemical composition (mass fraction) (%) | ||||||
| C | Si | Mn | Cr | Ni | Cu | |||
| ≤ | ||||||||
| U20080 | 08F | O.05~O.11 | ≤0.03 | 0.25~0.50 | 0.10 | O.30 | 0.25 | |
| U20l00 | 10F | O.07~O.13 | ≤O.07 | O.25~O.50 | O.15 | 0.30 | 0.25 | |
| U20150 | 15F | 0.12~O.18 | ≤O.07 | 0.25~O.50 | 0.25 | 0.30 | 0.25 | |
| U20082 | 08 | 0.05~O.11 | O.17~O.37 | O.35~O.65 | O.10 | O.30 | O.25 | |
| U20102 | lO | 0.07~O.13 | 0.17~O.37 | 0.35~0.65 | 0.15 | O.30 | O.25 | |
| U20152 | 15 | O.12~0.18 | 0.17~O.37 | O.35~0.65 | O.25 | O.30 | O.25 | |
| U20232 | 20 | O.17~0.23 | 0.17~0.37 | 0.35~0.65 | O.25 | O.30 | O.25 | |
| U20252 | 25 | O.22~0.29 | 0.17~O.37 | O.50~O.80 | O.25 | O.30 | 0.25 | |
| U20302 | 30 | O.27~O.34 | O.17~O.37 | O.50~O.80 | 0.25 | O.30 | 0.25 | |
| U20352 | 35 | O.32~0.39 | O.17~O.37 | O.50~O.B0 | 0.25 | O.30 | 0.25 | |
| U20402 | 40 | 0.37~O.44 | 0.17~O.37 | O.50~O.80 | O.25 | O.30 | O.25 | |
| U20452 | 45 | O.42_O.50 | O.17~O.37 | 0.50~0.80 | 0.25 | O.30 | 0.25 | |
| U20502 | 50 | 0.47~0.55 | 0.17~O.37 | 0.50~0.80 | 0.25 | O.30 | O.25 | |
| U20552 | 55 | O.52~0.60 | O.17~O.37 | O.50~0.80 | O.25 | 0.30 | O.25 | |
| U20602 | 60 | 0.57~O.65 | 0.17~O.37 | 0.50~O.80 | O.25 | O.30 | 0.25 | |
| U20652 | 65 | O.62~0.70 | 0.17~0.37 | O.50~O.80 | O.25 | O.30 | O.25 | |
| U20702 | 70 | O.67~0.75 | 0.17~0.37 | O.50~O.80 | 0.25 | O.30 | O.25 | |
| U20752 | 75 | O.72~0.80 | 0.17~O.37 | 0.50~0.80 | 0.25 | O.30 | O.25 | |
| U20802 | 80 | O.77~0.85 | O.17~0.37 | O.50~O.80 | 0.25 | O.30 | 0.25 | |
| U20852 | 85 | O.82~0.90 | O.17~0.37 | 0.50~O.80 | O.25 | O.30 | O.25 | |
| U21152 | 15Mm | O.12~O.18 | O.17~O.37 | O.70~1.00 | O.25 | O.30 | 0.25 | |
| U21202 | 20Mn | 0.17~O.23 | O.17~O.37 | O.70~1.00 | O.25 | 0.30 | O.25 | |
| U21252 | 25Mn | O.22~O.29 | 0.17~0.37 | O.70~1.00 | O.25 | O.30 | O.25 | |
| U21302 | 30Mn | 0.27~O.34 | O.17~0.37 | 0.70~1.00 | O.25 | O.30 | 0.25 | |
| U21352 | 35Mn | O.32~O.39 | O.17~O.37 | O.70~1.00 | 0.25 | O.30 | O.25 | |
| U21402 | 40Mn | O.37~0.44 | O.17~0.37 | O.70~1.00 | 0.25 | 0.30 | O.25 | |
| U21452 | 45Mn | 0.42~0.50 | 0.17~O.37 | 0.70~1.00 | O.25 | O.30 | O.25 | |
| U21502 | 50Mn | O.48~0.56 | O.17~O.37 | O.70~1.00 | 0.25 | 0.30 | 0.25 | |
| U21602 | 60Mn | 0.57~0.65 | O.17~O.37 | 0.70~1.00 | 0.25 | 0.30 | 0.25 | |
| U21652 | 65Mn | 0.62~0.70 | 0.17~O.37 | O.90~1.20 | O.25 | 0.30 | 0.25 | |
| U21702 | 70Mn | 0.67~O.75 | 0.17~0.37 | 0.90~1.20 | O.25 | O.30 | O.25 | |
Flat Bar Size | Round Bar Size(mm) | |||
Thickness | Width | Length | Diameter | Length |
10-700 | 155-2200 | 2000-6000 | 20-200 | 3000-6000 |
| Steel Grade | CK10 S10C S12C 10#1010 15#1015 S15C S17C CK15 25#1025 S25C S28C 1040 40#S40C S43C C40 1045 45#S45C S48C C45 1050 50#S50C S53C C50 15Mn 1019 1020 1025 1040 1019 1008 1010 1015 1040 1045 1030 30#C30 CK30 S30C 1035 35#C35 CK35 S35C 1055 55#C55 CK55 S55C 1060 60#C60 CK60 S58C 1069 70#1070 C70 CK70 1064 1065 65#C67 CK67 1074 1075 75#C75 CK75 08F 1008 1010 |
| Standard | AISI EN DIN GB JIS ASTM |
| Technique | Hot Rolled/ Forged/ Cold drawn |
| Alloy Or Not | Not-Alloy |
Processing | Heat treatment: soft annealing, normalising, isothermal, spheroidising and stress relieving treatments, quenching and tempering Peeling |
| Tolerance | ±1% |
| Processing Service | Bending, Welding, Decoiling, Cutting, Punching |
| Delivery Time | 8-14days |
| Product Name | Carbon structural steel |
| Length | 1-12m |
| Technology | Hot Rolled, Hot Forge, Cold Drawn |
| Process | Forging+Machining(if Need)+surface Treatment |
| MOQ | 1 Ton |
| Diameter | 6mm-800mm |
| Shape | Round. Square. Rectangular |
| condition | test temperature | tensile strength σb Mpa | Yield point σs Mpa | Elongation δ % | Impact absorbed energy KV2 J |
| Long wood and flat wood;t≤16 | 490~650 | ≥390 | ≥21 | ||
| Long wood and flat wood; 16 | 490~650 | ≥380 | ≥21 | ||
| Long wood and flat wood; ;40 | 490~650 | ≥360 | ≥20 | ||
| Long wood and flat wood; 63 | 490~650 | ≥340 | ≥20 | ||
| Long wood and flat wood; 100 | 450~620 | ≥320 | ≥19 | ||
| · Long wood and flat wood; longitudinal · | 0°C | ≥34 | |||
1. Who are we?
Our headquarter is located in Shandong, China. Since 2023, 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