Product Description:
Carbon Steel Bar
Carbon steel bar is a widely used type of steel that is known for
its high strength, durability, and versatility. It is made up of
primarily carbon and iron, with other elements such as manganese,
silicon, and sulfur added to enhance its properties. The carbon
content of carbon steel bar can range from 0.05% to 2.0%, depending
on the type of carbon steel used.
Product Attributes:
- Length: Random or Customized
- Hs Code: 7213100000
- Weldability: Excellent
- Diameter: 4mm~800mm
- Surface: Normal Black Surface
Carbon steel bar is available in various shapes and sizes, such as
rectangular, round, square, and hexagonal. However, in this product
overview, we will be focusing on the most commonly used shapes -
rectangular and round.
Rectangular Carbon Steel Bar
Rectangular carbon steel bar, also known as low carbon steel bar,
is a type of carbon steel that has a low carbon content. It is
often used in structural applications due to its high strength and
good ductility. The low carbon content also makes it easier to weld
and form into different shapes. This type of carbon steel bar is
commonly used in construction, engineering, and automotive
industries.
Round Carbon Steel Bar
Round carbon steel bar, also known as mild carbon steel bar, is a
type of carbon steel that has a higher carbon content compared to
rectangular carbon steel bar. This makes it stronger and more
durable, making it suitable for heavy-duty applications such as
manufacturing machinery, agricultural equipment, and oil rigs. Its
excellent weldability also makes it a popular choice for welding
and fabrication projects.
High Carbon Steel Bar
In addition to low carbon and mild carbon steel bar, there is also
high carbon steel bar. This type of carbon steel has the highest
carbon content, ranging from 0.6% to 0.99%. It is the strongest and
hardest type of carbon steel, making it ideal for applications that
require a high level of strength, such as making cutting tools,
knives, and blades.
Overall, carbon steel bar is a versatile and widely used product
that offers excellent strength, durability, and weldability. Its
various forms and sizes make it suitable for a wide range of
applications in different industries. With its excellent properties
and affordable cost, carbon steel bar is a popular choice for many
manufacturers and builders.
AISI 4140High-Tensile Alloy Steel Round bar 4140 Hot Rolled Steel
Grade: AISI 4140, 4130, 5140, 5120
Alloy structural steel: 4140
Executive standard: ASTM A29/A29M-04 4140 steel. This steel has
good workability, small processing deformation, and good fatigue
resistance. It is a medium hardenable steel. After heat treatment,
4140 has good strength and good comprehensive mechanical
properties, good manufacturability, and yield high.
The highest service temperature is 427 degrees Celsius, 4140
strength, hardenability, good toughness, small deformation during
quenching, high creep strength and enduring strength at high
temperature.
It is used to manufacture forgings that require higher strength and
larger quenched and tempered section than 35CrMo steel, such as
large gears for locomotive traction, supercharger transmission
gears, rear axles, connecting rods and spring clips that are
heavily loaded, and can also be used Drill pipe joints and fishing
tools for oil deep wells below 2000m, and can be used for molds of
bending machines.
| Product name | steel round bar |
| Size | O.D | 8-480mm |
| Length | 1-12m |
| Standard | AISI,ASTM,GB,DIN,BS,JIS |
| Grade | AISI 4140, 4130, 5140, 5120 |
| Inspection | X-ray inspection, manual ultrasopic inspection,surface
inspection,hydraulic testing |
| Technique | Hot Rolled |
| Section Shape | Round |
| Main Market | Southeast Asia, Middle East, Australia,USA,South America,Africa |
| Productivity | 5000 Tons/month |
| Packing | Standard bundle package Beveled end or as per request |
| Surface Treatment | Black Painted or Customized all available |
| Date of Delivery | According to The Specifications And the Quantities Of Each
Contract,
Time Start To Begin When We confirm the Date of the Earnest or L/C |
| Method of Payment | T/T L/C |
| Method Of Delivery | Terms According To the <INCOTERMS 2000> for International
Trading |
| Remarks | 1.Payment Terms T/T, L/C |
| 2.Trade Term:FOB/CFR/CIF |
| 3.Minimum Quantity of Order: 2 Tons |
| 4.Delivery Time:7-15 days after receipt of deposite |
Product Parameters
AISI 4130 Chemical composition (%)
| Item | C | Si | Mn | P | Mo | Cu | Cr | Ni | S |
| 4130 | 0.28-0.33 | 0.15-0.35 | 0.40-0.60 | ≤0.035 | 0.15-0.25 | ≤0.030 | 0.80-1.10 | ≤0.030 | ≤0.040 |
| Tensile Strength | Elongation | Yield Strength | Hardness after Hardened(HB) | 180°old Bending Test |
| ≥930MPa | ≥12% | ≥785 MPa | ≤229 | Qualified |
| C | Si | Mn | P | S | Cr | Ni | Mo | Cu |
| 4140 | 0.38-0.43 | 0.15-0.35 | 0.75-1.00 | ≤0.035 | ≤0.040 | 0.80-1.10 | | 0.15-0.25 | |
Delivery Condition:Q+T
Mechanical properties Tensile Strength σb≥1080 MPA Yield Strength σs≥930 MPA
Packaging & Shipping
Our Advantages
1. More than 10 years Professional steel export service. Have own
production line.
2. Advanced CNC machine.
3. Low cost&Quick Delivery&High quality.
4. Integrity, strength and quality of products recognized by the
industry.
5. Most of our clients are international, the domestic well-known
enterprises.
6. Has a complete scientific quality management system.
7. Can meet any requirements for all kinds of sheet metal
processing with advanced equipment.
After Sales Service
Pre-sale Service
1.Good quality + Factory price + Quick response + Reliable service
2.100% responsible for the quality:all the products are produced by
our professional workman and we have a high-work-effect foreigh
trade team.
3.We have enough stock and can deliver in short time.
4.Customized designs,colors,sizes and logos are
welcome,responsiveness to customers' requirements.
After-sale Service:
1.We will count cheapest shipping cost and make invoice to you at
once.
2.On time delivery.
3.Provide real pictures of loading container,email you the tracking
NO. and help to chase the products until the goods arrive you.
4.24 hours online service,if any question,please contact us at
anytime in your convenience.
FAQ
Q1: How can I get a sample to check your metal work quality?
Answer: After price confirmation, you can require for samples to
check our quality. We will provide you sample for free (value under
USD35), as long as you afford the express freight.
Q2: How long can I expect to get the metal work sample?
Answer: After you pay the sample charges(if there is) and send us
confirmed drawings, the sample will be ready for delivery in 5-7
working days. The samples will be sent to you via DHL,
FedEx,UPS,TNT or EMS. It should arrive in 3-5 workdays. You can use
your own express account or prepay us if you don't have any
account.
Q3: What about the leading time for metal work mass production?
Answer: Honestly, it depends on the order quantity. Normally, 15
workdays to 30 workdays after your deposit if no the samples are
confirmed.
Q4: What will we do if the metal work quality is not ok ?
Answer: If the quality problem is caused by our mistake, we will
make replacement order for free or pay the back product charge and
handling charge back to you.
