ASTM A36 Schedule 40 Construction 20 Inch 24inch 30 Inch Seamless Carbon Steel Pipe Carbon Welded Seamless Spiral Steel Pipe for Oil Pipeline Construction

Classification

(1) According to the purpose, carbon steel can be divided into three categories: carbon structural steel, carbon tool steel and free-cutting structural steel, and carbon structural steel is further divided into engineering construction steel and machine manufacturing structural steel;

(2) According to the smelting method, it can be divided into open hearth steel and converter steel;

(3) According to the deoxidation method, it can be divided into boiling steel (F), killed steel (Z), semi-killed steel (b) and special killed steel (TZ);
(4) According to the carbon content, carbon steel can be divided into low carbon steel (WC ≤ 0.25%), medium carbon steel (WC0.25%-0.6%) and high carbon steel (WC>0.6%);
(5) According to the quality of steel, carbon steel can be divided into ordinary carbon steel (higher phosphorus and sulfur content), high-quality carbon steel (lower phosphorus and sulfur content) and advanced high-quality steel (lower phosphorus and sulfur content) ) and extra high-quality steel.

  Common steel grades and uses:

08F, low mass fraction of carbon, good plasticity, low strength, used for stamping parts such as automobile and instrument housing;
20. Good plasticity and weldability, used for parts with low strength requirements and carburized parts, such as hoods, welding containers, small shafts, nuts, washers and carburized gears, etc.;
45, 40Mn, after quenching and tempering, the comprehensive mechanical properties are good, and it is used for mechanical parts with large force, such as gears, connecting rods, machine tool spindles, etc.;
60, 65Mn steel has high strength; it is used to manufacture various springs, locomotive wheel flanges, and low-speed wheels.
T7, T8: Make parts that withstand a certain impact and require toughness. Such as sledgehammers, punches, chisels, woodworking tools, scissors.
T9, T10, T11: Manufacturing tools that require high hardness and high wear resistance with low impact. Such as taps, small drills, dies, hand saw blades.
T12, T13: Make tools that are immune to impact. Such as files, scrapers, razors, measuring tools.

Product Display
 

Specification

Standard Export Seaworthy Package,or as Required.

Company Profile

Cetifications

We have multiple quality system certifications to ensure that high-quality products reach your hands.
 

Why Choose Us



Our customer

Packing & Pay

FAQ
1. What is your payment terms?
Huabei Steel prefers TT OR LC.

2. Will you delivery the goods on time?
Yes,we promise to provide best quality products and delivery on time .Honesty is our company's tenet.

3. Do you provide samples ? is it free or extra ?
The sample could can provide for customer with unfree,but the courier freight will be covered by customer account.

4.How could you guarantee your products?
Each piece of products is manufactured by certified workshops, inspected by Linxu piece by piece according to national QA/QC standard. We also could issue the warranty to customer to guarantee the quality.

5. Is customization available?
Huabei Steel's expert equipment and highly-trained workers are capable of manufacturing highly customized products. Please feel free to discuss with us about your customized requirements, we can surely meet your needs.

6. What products and materials do you supply?
Huabei Steel mainly supplies all catalogs and all grades of steel and stainless steel products. Coils, strips, sheet, pipes, bars, beams, flanges and other customized products. Galvanization and other surface treatments are also available. Other than steel products,Huabei Steel also has high production capacity and holds all kinds of copper and aluminum products.
Please feel free to consult us about any related products above, we can surely meet your requirements.