High-Strength Sections Custom Drilling to Drawing Baosteel / Ansteel Sourced

Vehicle-Grade Structural Steel Sections

Rectangular hollow sections (RHS) and oval tubes for truck/trailer chassis rails, bus body frames and structural steel columns. Grades 510L, Q235, Q355, 20# and QSTE700TM; wall thickness 1.5-12mm; cross-sections 60×60 up to 500×500mm; cut lengths 0-12m. We punch holes to your drawing or vehicle model. Large sections are rolled from Baosteel and Anyang Iron & Steel coil.

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High-strength rectangular hollow sections for truck chassis frame rails

PART 1 · VEHICLE SECTIONS

High-Strength RHS for Chassis Frame Rails

Grade 510L (a dedicated automotive frame steel grade), 3.8mm wall thickness, cut lengths 6-12m, available in 200×300 / 80×180 / 60×120mm rectangular hollow sections — for truck and trailer main rails and chassis frame rails.

Rectangular hollow section 200×300, 510L — 200×300Wall 3.8 mm · 6–12 m · grade 510L

Rectangular hollow section 80×180, 510L — 80×180Wall 3.8 mm · 6–12 m · grade 510L

Rectangular hollow section 60×120, 510L — 60×120Wall 3.8 mm · 6–12 m · grade 510L

Grade 510L automotive frame steel
Wall thickness: 3.8mm
Cut length: 6-12m
Cross-sections: 200×300 / 80×180 / 60×120mm (rectangular hollow section, not steel plate)
Application: truck/trailer main rails, chassis frame rails

PART 2 · VEHICLE SECTIONS

Oval Tubes for Bus Body Framing

Grades Q235/Q355, wall thickness 3-6mm, length 6-12m, cross-sections 56×156 / 36×96mm — special-shaped oval tubing for bus body skeleton framing.

Oval tube 56×156 for bus body framing — 56×156Wall 3–6 mm · 6–12 m · Q235 / Q355

Oval tube 56×156, stacked bundles — 56×15656×156 bundles strapped for dispatch

Oval tube 36×96 for bus body framing — 36×96Wall 3–6 mm · 6–12 m · Q235 / Q355

Grades: Q235 / Q355
Wall thickness: 3-6mm
Length: 6-12m
Cross-sections: 56×156 / 36×96mm (special-shaped oval tube)
Application: bus body skeleton framing

PART 3 · VEHICLE SECTIONS

RHS for Bus Body Frame Structures

Grades Q235 / 20# / Q355 / 510L / QSTE700TM, cross-sections 60×60 to 500×500mm, wall thickness 1.5-12mm, length 0-12m. Holes punched per vehicle model — running SKU tables are on the bus-frame tube page.

Bus-frame rectangular hollow sections in the warehouse — RHSQ235 / 20# / Q355 / 510L / QSTE700TM

Black annealed RHS, cut ends — Black annealedCut-end detail · wall 1.5–12 mm

Galvanized RHS, cut ends — GalvanizedCut-end detail

Bundled RHS ready for dispatch — BundledReady for dispatch

Grades: Q235 / 20# / Q355 / 510L / QSTE700TM
Cross-section range: 60×60 to 500×500mm
Wall thickness: 1.5-12mm
Length: 0-12m
Holes punched per vehicle model; running SKUs listed on the bus-frame tube page

View full bus-frame RHS SKU tables →

PART 4 · STRUCTURAL SECTIONS

Large-Section Square/Rectangular Tubes (Shanghai Baosteel / Anyang Iron & Steel)

Large cross-section square and rectangular tubes, made to customer drawings, for structural steel columns and machinery bases; input coil from Baosteel and Anyang Iron & Steel (Ansteel).

Cut-end detail of large square tube — Cut endUniform wall, clean weld seam

Large square tubes, close view — StockStocked sizes, close view

Large cross-section square/rectangular tubes
Custom-made to customer drawings
Application: structural steel columns, machinery equipment
Input coil: Baosteel / Anyang Iron & Steel (Ansteel)

View Large-Section Square/Rectangular Tubes (Shanghai Baosteel / Anyang Iron & Steel) size range →

PRODUCTION & WAREHOUSING

Tube production workshop — RHS production workshop

Vehicle-Grade Structural Steel Sections

High-Strength RHS for Chassis Frame Rails

Oval Tubes for Bus Body Framing

RHS for Bus Body Frame Structures

Large-Section Square/Rectangular Tubes (Shanghai Baosteel / Anyang Iron & Steel)

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