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China I Beam Suppliers - High-Quality Steel I Beam from Trusted Factory
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China I Beam Suppliers - High-Quality Steel I Beam from Trusted Factory

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Product Overview:
The I-beam, widely recognized as a steel beam, is referred to as Steel I Beam or Universal Beam in English. This long, hot-rolled steel section features a standard I-shaped cross-section, characterized by a vertical web at its center and two flanges at the top and bottom. Manufactured by top-notch China suppliers, the I-beam adheres to national standards like GB/T 706-2016 and international benchmarks such as EN, ASTM, and JIS. Primarily produced through hot rolling, customized large-size or non-standard products can be created via steel plate welding, while light-duty variants can be efficiently processed through cold bending at our factory.

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  • Processing Services Bending, Welding, Cutting, Drilling, Punching, Straightening, Surface Treatment
  • Surface Treatment Black bare (original rolling surface),Anti‑rust painting,Hot dip galvanized,Anti‑rust oil coating
  • Material & Grades Q235B / Q355B,A36 / A572 Gr50 / A992,S235JR / S275JR / S355JR,SS400 / SM490
  • Delivery Time 7–20 days (according to quantity and processing)
  • Surface Treatment Bare Black / Anti-rass Oil Coated
  • Delivery Time 3-15 days (according to the actual tonnage)
  • Processing Customization Drilling, end treatment and prefabricated welding are acceptable. Beveling, grooving, welding, machining services are available to satisfy connection requirements.
  • Marking & Packaging Customization Special marking (with project ID or specs) is available; packaging can be customized for flatbed or container shipping.

Specifications
Processing Services Bending, Welding, Cutting, Drilling, Punching, Straightening, Surface Treatment
Surface Treatment Black bare (original rolling surface), Anti‑rust painting, Hot dip galvanized, Anti‑rust oil coating
Dimension 80x50mm - 300x128mm
Material & Grades Q235B / Q355B, A36 / A572 Gr50 / A992, S235JR / S275JR / S355JR, SS400 / SM490
Delivery Time 7–20 days (according to quantity and processing)
Hot Rolled Steel I Beam
Size H (mm) B (mm) Thickness (mm) Weight (kg/m)
Value Tolerance Value Tolerance Value Tolerance
8# 80 ±2.0 50 ±2.0 4.5 ±0.5 7.520
10# 100 ±2.0 68 ±2.0 4.5 ±0.5 11.261
12# 120 ±2.0 74 ±2.0 5.0 ±0.5 13.987
14# 140 ±2.0 80 ±2.0 5.5 ±0.5 16.890
16# 160 ±2.0 88 ±2.5 6.0 ±0.5 20.513
18# 180 ±2.0 94 ±2.5 6.5 ±0.5 24.143
20A 200 ±3.0 100 ±3.0 7.0 ±0.7 27.929
20B 200 ±3.0 102 ±3.0 9.0 ±0.7 31.069
22A 220 ±3.0 110 ±3.0 7.5 ±0.7 33.070
22B 220 ±3.0 112 ±3.0 9.5 ±0.7 36.524
25A 250 ±3.0 116 ±3.0 8.0 ±0.7 38.050
25B 250 ±3.0 118 ±3.0 10 ±0.7 42.030
28A 280 ±3.0 122 ±3.0 8.5 ±0.7 43.492
28B 280 ±3.0 124 ±3.0 10.5 ±0.7 47.888
30A 300 ±3.0 126 ±3.0 9.0 ±0.7 48.084
30B 300 ±3.0 128 ±3.0 11 ±0.7 52.794
Product Display
Hot rolling production line
Hot rolling production line
Warehouse stock
Warehouse stock
Product Labels
Product Labels
Loaded into container
Loaded into container
Transported to the port
Transported to the port
In the port yard
In the port yard
Shipping Process
Shipping process diagram
Exhibition
Exhibition photo 1
Exhibition 01
Exhibition photo 2
Exhibition 02
Exhibition photo 3
Exhibition 03
Exhibition photo 4
Exhibition 04
Exhibition photo 5
Exhibition 05
Exhibition photo 6
Exhibition 06
Company Certificate
CE Certificate
CE
ISO14001:2015 Certificate
ISO14001:2015
ISO9001:2015 Certificate
ISO9001:2015
Alliance Member OF Tianjin Metal Materials Industry Association
Tianjin Metal Materials Industry Association
Alliance of China Steel Export
Alliance of China Steel Export
China National Association of Metal Material Trade
China National Association of Metal Material Trade
FAQ
Are you a manufacturer?
Absolutely. We are a direct manufacturer with our own large-scale facility located in Tianjin, China. You are more than welcome to visit us!
Can I place a trial order for just a few tons?
Certainly. We value every partner regardless of the order size. We can easily arrange an LCL (Less than Container Load) shipment to accommodate your specific needs.
Is the sample free of charge?
Yes, we provide samples for free so you can verify our quality. We only ask the buyer to cover the courier cost.
How long is the delivery time?
Most sizes are in stock and can be shipped immediately. Custom processing or large volumes typically take 7 to 20 days.
What surface treatments do you offer for I-beams?
We offer black bare (original rolling surface), anti-rust painting, hot dip galvanized, and anti-rust oil coating to suit different environmental requirements.
Which steel grades can you provide?
We support a wide range of standards and grades, including Q235B/Q355B, A36/A572 Gr50/A992, S235JR/S275JR/S355JR, and SS400/SM490.
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