ST 37 Grade High-Strength Hot-Rolled I-Beams for Structural Applications
Product Introduction
I-beams are elongated steel profiles characterized by an "I"-shaped cross-section. They comprise two parallel horizontal flanges connected by a vertical web, offering superior flexural strength and load-bearing efficiency. Available in standard and lightweight variants, standard I-beams feature thicker webs for heavy-duty applications, while lightweight designs prioritize material optimization for scenarios requiring reduced weight. For detailed specifications, contact our team.
Manufacturing Standards & Material Grades
(1)GB/T 706-2018
Q235 series: ordinary carbon structural steel, tensile strength ≥375MPa, yield strength ≥235MPa, widely used in building supports, factory beams, etc.
Q355 series: low alloy high strength steel, tensile strength ≥470MPa, yield strength ≥355MPa, suitable for bridges and high-rise building load-bearing structures.
(2)EN 10034 & EN 10025
S235 series: tensile strength 360-510MPa, yield strength ≥235MPa, used for general building structures 310.
S355 series: tensile strength 470-630MPa, yield strength ≥355MPa, suitable for heavy-load bridges and industrial platforms.
(3)JIS G 3192
SS400: Ordinary structural steel, tensile strength 400-510MPa, used for mechanical parts and light brackets.
SM490: Welded structural steel, tensile strength 490-610MPa, suitable for bridge and shipbuilding.
(4)ASTM A36
ASTM A36: Carbon structural steel, tensile strength ≥400MPa, yield strength ≥250MPa, widely used in construction and mechanical frames.
Standard Dimensions
Key Applications
(1)Construction: Primary beams, columns, and frameworks in commercial and industrial buildings.
(2)Infrastructure: Bridge girders, support systems, and dynamic load-bearing components.
(3)Machinery: Crane rails, equipment bases, and heavy-duty brackets.
(4)Transportation: Railcar chassis and container frame assemblies.
Packaging and Shipping
Bundling:
Secured with steel straps; bundles ≤5 tons to prevent deformation.
Anti-Corrosion:
Coated with protective oil or wrapped in film for humid or maritime environments.
Transport:
Shipped via flatbed trucks or containers; storage in dry, ventilated areas to avoid oxidation.
fAQ
Q: Are you a manufacturer?
A: Yes , we are a manufacturer, our company started earlier in China's steel industry, with annual sales of more than 10 million tons.
Q: Can we visit your factory ?
A:Warmly welcome once we have your schedule we will pick you up .
Q: Do you have quality control?
A: Yes, we have gained BV, SGS authentication,CE ISO，ETC.
Q: Can you arrange the shipment?
A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.
Q: How long is your delivery time?
A: Generally it is 7 days if the goods are in stock. or it is 10-15days if the goods are not in stock, it is according to quantity.
Q:Can we get the some samples?Any charges?
A:Yes,you can get available samples in our stock. Free for real samples,but customers need to pay the freight cost.
Q: How do you make our business long-term and good relationship ?
A: 1.We keep good quality and competitive price to ensure our customers' benefit.
2.We respect every customer as our friend and we sincerrly do business and make friends
with them, no matter where they come from.