About YH Steel Grating

We make one product family — open-mesh grating — and we make all of it: welded, press-locked and riveted, in carbon steel, 304/316L stainless, aluminum and FRP. Because grating is all we do, the engineering desk that answers your RFQ sits 20 meters from the welding line that will make it.

What a factory-direct order looks like

You send sizes, load and quantity (or a DXF drawing). Within 24 hours you receive a quote with a per-panel load check to NAAMM MBG 531. You approve the shop drawing; production runs 15–25 days after drawing confirmation; the container loads at Shanghai / Ningbo with the MTC, galvanizing certificate and weld test record inside. Third-party inspection before loading is welcome — most US customers appoint SGS or BV for first orders, then rely on our records.

Quality control, audited annually

• ASTM A36 — carbon structural steel bar and plate
• ASTM A123 — hot-dip galvanizing, 70–85 µm zinc coating on bearing bars
• ASTM A1011 / Q235B — flat bar feedstock with mill certificates
• NAAMM MBG 531 — load & deflection tables (uniform + concentrated load, L/200)
• EN 1090-1/-2 — structural steel execution, CE-marked assemblies
• ISO 9001:2015 — quality management system, audited annually
• MTC (EN 10204 3.1) material test certificate with every shipment

Factory facts

• Founded 2009 · ISO 9001:2015 certified · EN 1090 CE execution class EXC2
• Annual capacity ≈ 9,000 t grating panels + 150,000 stair treads
• Export experience: 60%+ of output to North America, 20% Australia, 20% Middle East
• In-house tooling for bearing pitches 15–50 mm and cross pitches 50/100 mm — no mold cost for custom spacing

Where we are

Bebu Industrial Zone, Yuyao, Ningbo, Zhejiang, China 315400 — 2 hours from Ningbo port, 3 hours from Shanghai port. Factory visits welcome; bring your drawings, leave with a production plan.