What it is
H-beams and I-beams are hot-rolled structural sections that carry building and bridge loads. Because each size has a defined weight per meter, the characteristic fraud is shipping lighter, under-rolled sections while invoicing the standard weight.
Grades & standards buyers order
| Grade | Standard | Notes |
|---|---|---|
| Q235B / Q355B | GB/T 700 / 1591 | Chinese structural section grades. |
| ASTM A992 / A572 | ASTM | US wide-flange structural grades. |
| S275 / S355 | EN 10025 | European structural grades. |
How it's sold: Sold by metric ton; specify section designation (e.g. HW/HM/HN or UB size), grade, length, and the standard weight per meter.
What drives the price
- Grade and section size
- Weight per meter (the key spec)
- Length and cutting
- Web/flange dimensional tolerance
Lock these into the contract before you pay
Section designation + weight per meter
Under-rolled sections weigh less per meter but look identical; pin the kg/m.
Grade and standard
A992 vs Q235 are different strengths; specify what the design requires.
Dimensional tolerance
Out-of-tolerance web/flange affects load capacity and fit-up.
Scams most common to h-beam
Grade Substitution (lower grade shipped than ordered)
Lighter or lower-grade sections shipped as the ordered designation.
Forged Mill Test Certificates (MTC / EN 10204 3.1)
Certificate section/grade not matching the beams loaded.
Head-and-Tail (Sandwich) Coil Loading
Correct sections on top of the bundle, off-spec underneath.
Red flags in a quote or sample
- Price implying under-weight sections
- Weight per meter not stated
- Grade without an ASTM/EN/GB reference
Already paid and something's wrong?
If you received off-spec h-beam, a certificate that doesn't match, or your supplier has gone quiet after a deposit, move quickly. Recovery odds drop with every day that passes on a wire transfer.
Buying h-beam from China: FAQ
What grades of h-beam can I buy from China?
The most commonly ordered grades are Q235B / Q355B, ASTM A992 / A572, S275 / S355. Always pair the grade with its standard on the purchase order so the mill test certificate can be matched to what you actually receive.
What is the most common scam when buying h-beam from China?
Grade Substitution (lower grade shipped than ordered). For this product specifically: Lighter or lower-grade sections shipped as the ordered designation. The defense is to specify the exact grade and standard, require a verifiable mill test certificate, and commission independent pre-shipment inspection.
What should I check before paying for h-beam?
Lock down section designation + weight per meter, grade and standard, dimensional tolerance in the contract, verify the supplier is a real manufacturer, and never release the balance until an independent inspection confirms the goods.
I already paid a Chinese supplier for h-beam — what now?
Act fast: contact your bank about a recall on the wire, gather all contracts and communications, report the pattern so others are warned, and review the documented cases to understand your options. The sooner you act on a redirected or disappeared payment, the better the odds.
Related product guides
Angle steel
L-shaped section for frames and towers. Thickness/weight shortfall and grade substitution are the main traps.
Steel plate
Thick flat steel for structures, ships, and pressure vessels. Grade/impact-class substitution and thickness shortfall are the key risks.
Rebar
Ribbed reinforcing bar for concrete. High-volume, price-sensitive, and a frequent target for grade substitution and theoretical-weight billing.