Building Construction Material Good Quality Hot Rolled Mild Carbon Steel Flat bar
The Production Process Key Steps
Feeding: Feeding the raw material (steel plate) into the slitting line for preliminary processing1.
Slitting: Cutting the steel plate into flat bars of the required width through the longitudinal cutting equipment to ensure width accuracy.
Leveling and cutting: Leveling the slitting flat bar to eliminate bending or deformation, and then cutting it to the customer's specified length (usually 2-12 meters).
Standards and Grades
GB/T 702-2017, GB/T 700-2006: Q235, Q355, 20#, 45#, 60Si2Mn;
EN 10067:1996, EN 10025-2, DIN 17100: S235JR/S355JR, ST37, ST52;
JIS G 3101, JIS G 3106: SS400, SM490, SAPH440;
ASTM A36, ASTM A572: A36, Gr50, Gr60;
Main Size Specifications
The size range of Steel Flat Bar varies depending on the standard and manufacturer, and the common parameters are as follows:
Thickness: 3-40 mm (hot rolled).
Width: 10-200 mm (some suppliers can customize to 300 mm).
Length: The standard length is 6-12 meters, and customization is supported (such as 2-meter short materials).
Tolerance: The width and thickness tolerances are usually ±5%.
Application
Steel Flat Bar is widely used in the following fields due to its high strength and easy processing:
Buildings and bridges: as beams, stair support structures, or for steel gratings.
Machinery manufacturing: equipment frames, conveyor belt brackets and mold manufacturing.
Ships and vehicles: hull structures, automobile chassis and wheel components.
Energy and infrastructure: oil/gas pipelines, transmission towers.
Daily industry: boiler manufacturing, railway accessories and storage racks.
Surface Treatment, Packaging and Transportation
Surface treatment: including bare material (Bare), galvanized (Galvanized), painted (Painted), etc. Galvanizing can significantly improve corrosion resistance.
Packing method: usually bundled into rolls or loaded into containers (20/40 feet), suitable for sea or land transportation needs.
fAQ
1. Who are we?
We are headquartered in Tianjin, China, started in 2016, selling to Middle East(40.00%), South America(15.00%), Southeast Asia(15.00%), South Asia(5.00%), East Asia(5.00%), North America(5.00%), Africa(5.00%), Oceania(3.00%), Southern Europe(2.00%), Central America(2.00%), Western Europe(1.00%), Northern Europe(1.00%), Eastern Europe(1.00%). Totally we have more than 100 people in our office.
2. How do we ensure quality?
Always pre-production samples before mass production;
Always final inspection before shipment;
4. Why should you buy from us instead of other suppliers?
China's largest profile manufacturer
Annual production capacity of 5 million tons
Fast delivery time
Sky Steel has the largest profile inventory
Sky Steel has BV, CE, ISO, JIS, PHD, EPD, BC1, certificates
5. What services can we provide?
Accepted delivery terms: FOB, CFR, CIF, EXW;
Accepted payment currencies: USD, EUR, JPY, CAD, AUD, HKD, GBP, RMB, CHF;
Accepted payment methods: T/T, L/C, PayPal, Cash;
Languages used: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Hindi, Italian


