UPN Channels: Sizes, Weight Chart, Prices & Specifications for Industrial Buildings

UPN Channels: Sizes, Weight Chart, Prices & Specifications for Industrial Buildings<\/h2>

UPN channels (also called UPN sections, U-sections, or tapered flange channels) are European-standard structural steel channels with tapered flanges, rolled to EN 10365 dimensions and EN 10025 material grades. The UPN profile has thick roots and tapering flanges that suit bolted and welded connections, making it a first-choice section for columns, beams, machine frames, and heavy secondary steel. UPN is the DIN-derived classic found throughout European and Middle Eastern construction, so contractors and engineers can specify it with confidence in any market that follows Eurocode practice. This page is the complete buying reference from Sino East Steel Group — a direct steel structure manufacturer in Tianjin, China: upn channel sizes, upn channel weight charts, material grades, 2026 FOB prices, and the exact way to order UPN channels for your project.

1. What Is a UPN Channel?

A UPN channel is a hot-rolled structural steel channel with a U-shaped cross-section and tapered flanges — the flanges are thicker at the root where they meet the web and thinner at the tips. This profile, defined in EN 10365 (former DIN 1026-1), gives UPN sections a high moment of resistance in the strong axis and excellent performance in bolted connections, because the taper lets bolts bear on the full flange thickness at the root.

UPN channels are rolled from semi-finished billets in a steel mill and supplied in standard lengths of 6 m and 12 m, with cutting to custom lengths available. They are produced to material grades S235JR, S275JR, and S355JR/J2 per EN 10025-2, with equivalents Q235B/Q355B in GB/T 706. Standard sizes run from UPN 50 up to UPN 400. Because UPN is a hot-rolled section, its dimensions and weights follow the mill’s rolling tables rather than the cold-formed tolerances of our U channel steel — a lighter cold-formed profile for trims and light framing.

2. UPN vs UPE vs Cold-Formed U Channel: Which One Do You Need?

Comparison	UPN Channel	UPE Channel	Cold-Formed U Channel
Flanges	Tapered (thicker at root)	Parallel	Parallel, uniform gauge
Production	Hot rolling (EN 10365)	Hot rolling (EN 10365)	Cold roll forming from strip
Section range	UPN 50 – UPN 400	UPE 80 – UPE 400	50 – 250 mm depth
Strength	Highest for the same depth	High; parallel flanges ease connections	Light to medium duty
Best for	Beams, columns, machine frames	Built-up sections, glazing frames	Trims, bearers, light framing
Typical use	Structural steelwork, heavy equipment	Architectural and light structural work	Fabrication stock, services

For primary structural members, UPN is the classic choice. For lighter building secondary steel, see our C purlin and U channel pages — cold-formed sections are cheaper per tonne and often sufficient for purlins and girts.

3. UPN Channel Sizes & Dimensions

Standard upn channel sizes cover UPN 50 to UPN 400 per EN 10365. The table below lists common profiles with their flange and web dimensions. Longer and custom-length pieces are cut to order.

Section	Depth × Flange × Web (mm)	Standard Lengths
UPN 50	50 × 38 × 5	6 / 12 m
UPN 65	65 × 42 × 5.5	6 / 12 m
UPN 80	80 × 45 × 6	6 / 12 m
UPN 100	100 × 50 × 6	6 / 12 m
UPN 120	120 × 55 × 7	6 / 12 m
UPN 140	140 × 60 × 7	6 / 12 m
UPN 160	160 × 65 × 7.5	6 / 12 m
UPN 180	180 × 70 × 8	6 / 12 m
UPN 200	200 × 75 × 8.5	6 / 12 m
UPN 220	220 × 80 × 9	6 / 12 m
UPN 240	240 × 85 × 9.5	6 / 12 m
UPN 260	260 × 90 × 10	6 / 12 m
UPN 280	280 × 95 × 10	6 / 12 m
UPN 300	300 × 100 × 10	6 / 12 m
UPN 320	320 × 100 × 14	6 / 12 m
UPN 350	350 × 100 × 14	6 / 12 m
UPN 400	400 × 110 × 14	6 / 12 m

Dimension and mass tolerances follow EN 10279 for hot-rolled channels: depth ±1.5 mm for small sections, web thickness ±0.5 mm, and mass tolerance within +4%/−6% of nominal. When you specify a UPN channel, quote the nominal section number first (UPN 200), then the length and grade — for example UPN 200 × 6 m, S355JR. For a size not listed, ask our sales team — we supply the full EN 10365 range.

4. UPN Channel Weight Chart (kg per metre)

Standard UPN channel weights per EN 10279 (indicative, ±5%):

Section	Weight	Section	Weight
UPN 50	5.59 kg/m	UPN 220	29.4 kg/m
UPN 65	7.09 kg/m	UPN 240	33.2 kg/m
UPN 80	8.64 kg/m	UPN 260	37.9 kg/m
UPN 100	10.6 kg/m	UPN 280	41.8 kg/m
UPN 120	13.4 kg/m	UPN 300	46.2 kg/m
UPN 140	16.0 kg/m	UPN 320	59.5 kg/m
UPN 160	18.8 kg/m	UPN 350	60.6 kg/m
UPN 180	22.0 kg/m	UPN 400	71.8 kg/m
UPN 200	25.3 kg/m	—	—

Use the upn channel weight chart to estimate freight and steel tonnage: a 40 ft container holds roughly 24–26 tonnes of UPN channels. Multiply the per-metre weight by your total length to get net tonnage, then add 2–3% for cutting loss and packaging. These figures are nominal section masses from the EN rolling tables and are not calculated from a flat developed width — UPN is a hot-rolled profile with tapered flanges and corner radii included in the mass.

5. Material Grades & Corrosion Protection

Option	Specification	Best For
Mild steel	S235JR / Q235B — yield 235 MPa	General structural steelwork
High-strength steel	S275JR / S355JR / S355J2 / Q355B	Beams, columns, heavy loads
Galvanized (after rolling)	HDG 70–85 µm (ISO 1461)	Outdoor and coastal exposure
Primer / paint	Shop primer or full paint system, optional	Indoor structures, brand color
Weathering steel	S355J2W (Corten) on request	Bridges, architectural facades

UPN channels are supplied with mill test certificates (EN 10204 3.1) confirming grade, chemical composition, and mechanical properties. Where corrosive exposure is expected, specify hot-dip galvanizing per ISO 1461 — we coordinate the HDG bath for the full order.

6. UPN Channel Prices in 2026 (FOB China)

Indicative export pricing from our Tianjin supply chain (FOB, 2026):

Product	Indicative Price	MOQ
UPN 50 – UPN 200, S235JR/S275JR	USD 620–780 per tonne FOB	25 tonnes (mix sections OK)
UPN 220 – UPN 400, S355JR	USD 680–850 per tonne FOB	25 tonnes
Hot-dip galvanized UPN (HDG)	USD 850–1,100 per tonne FOB	25 tonnes
Cutting to length / drilling / fabrication	Nominal charge	—

Prices move with global billet and re-rolling markets and exchange rates, so treat these as planning ranges. For a firm quotation send your sections, lengths, quantities, and destination port to paul@sinoeaststeel.com. To estimate the full landed cost of a steel building in your market, see our Kenya, Nigeria, and UAE cost guides.

7. UPN Channel Applications

• Primary structural members — columns, beams, and rafters in portal frames and braced bays.
• Machine and equipment frames — heavy base frames, stands, and conveyor supports.
• Stairs, platforms, and access steel — stringers, bearers, and edge members.
• Purlins and girts on heavy buildings — where rolled sections are specified instead of cold-formed purlins.
• Trusses and built-up sections — UPN chords and lacings welded or bolted into lattice girders.
• Bridges and civil structures — secondary members, parapets, and support steel.

Related profiles we supply: C Purlin, Lipped Channels, Plain Channels, Hat Channels, Z Section Steel, and U Channels. For the full range of steel structure products — PEB, warehouses, and heavy steel — start from our product catalogue.

8. Why Buy UPN Channels Direct from Sino East Steel Group

Sino East Steel Group is a direct China steel structure manufacturer, not a trader. Since 1993 we have operated a 50,000 m² fabrication facility in Tianjin Industrial Park, Daqiuzhuang — China’s largest steel processing hub — with integrated cutting, drilling, welding, and hot-dip galvanizing capacity for structural sections.

• Factory-direct pricing — no middleman; 20–40% below regional re-seller prices.
• Certified quality — ISO 9001:2015, ISO 3834-2, EN 1090 EXC3/EXC4, AWS D1.1; EN 10204 3.1 mill certificates on every batch.
• Cutting and fabrication — cutting to length, drilling, welding, and primer per your shop drawings.
• Export documentation — invoice, packing list, certificate of origin, and mill certificates for smooth clearance.
• 100,000+ tonnes annual capacity — standard sections ship in 1–2 weeks; fabricated pieces in 3–4 weeks.

Before committing to any factory, use our manufacturer verification checklist — we welcome third-party inspection at any stage.

9. How to Order UPN Channels from China

1. Send your section (e.g., UPN 200), length, quantity, grade, and destination port.
2. Receive an itemized quotation within 24–48 hours (FOB/CIF).
3. Approve the cutting list and any fabrication drawings.
4. We mill-source, cut, and test (SGS/BV/TÜV inspection optional).
5. We ship FCL from Tianjin with full export documentation.

For complete projects — channels plus primary steel — see our procurement guide for importers.

10. UPN Channel Selection Guide

Section selection depends on span, load, and support conditions — always confirm with structural calculations. As a planning reference for UPN channels used as simply supported beams with a uniformly distributed load:

Section	Typical Span (light load)	Typical Use
UPN 80	2.0–3.0 m	Lintels, light framing
UPN 100	2.5–4.0 m	Door headers, small beams
UPN 140	3.5–5.0 m	Equipment supports, stair stringers
UPN 200	5.0–7.0 m	Main beams, crane runway brackets
UPN 300	7.0–9.0 m	Heavy beams, columns, truss chords

Span values assume moderate service loads; for roof and floor systems, double-check with your structural engineer. Our engineers can produce a full member schedule for your frame free of charge when you request a quotation.

11. Packing, Shipping & Delivery

UPN channels are bundled in steel-strapped packs with timber dunnage, marked with your project name and section for easy site sorting, and loaded into 40 ft containers or break-bulk holds at Tianjin Port. Standard export documentation — commercial invoice, packing list, bill of lading, certificate of origin, and EN 10204 3.1 mill test certificates — is provided with every shipment.

Typical transit times: 3–4 weeks to the Middle East (Jebel Ali), 4–6 weeks to East and West Africa (Mombasa, Lagos), 4–5 weeks to Europe, and 3–5 weeks to North America. For full-project shipping details, read our international shipping and installation guide.

12. UPN Channel FAQ

Q: What is the difference between UPN and UPE channels?
A: UPN channels have tapered flanges and are the classic heavy-duty section; UPE channels have parallel flanges and are lighter for the same depth. Both follow EN 10365 — UPN is specified where maximum strength per section is needed.

Q: What sizes do UPN channels come in?
A: Standard sizes run from UPN 50 to UPN 400 per EN 10365, in lengths of 6 m and 12 m. Custom cut lengths and grades S235JR to S355J2 are available.

Q: How much does a UPN channel cost?
A: In 2026, UPN channels run roughly USD 620–850 per tonne FOB China depending on section and grade; hot-dip galvanized sections USD 850–1,100 per tonne. Freight and duty vary by destination.

Q: What is the weight of a UPN channel per metre?
A: For example, UPN 100 weighs about 10.6 kg/m and UPN 200 about 25.3 kg/m. Use our weight chart above for planning — masses follow the EN 10279 rolling tables.

Q: Are UPN channels galvanized?
A: They are supplied black by default; we hot-dip galvanize to ISO 1461 (HDG 70–85 µm) on request for outdoor and coastal exposure.

Q: What is the standard for UPN channels?
A: Dimensions per EN 10365 (former DIN 1026-1), tolerances per EN 10279, and material grades per EN 10025-2 (S235JR / S275JR / S355JR / S355J2) with Chinese equivalents Q235B / Q355B in GB/T 706.

Q: Can you cut and fabricate UPN channels to my drawings?
A: Yes — we cut to length, drill, weld, and apply primer per your shop drawings, with EN 10204 3.1 mill certificates and EN 1090 execution class compliance.

Q: UPN or cold-formed U channel — which should I choose?
A: Use UPN for primary structural members, machine frames, and heavy steelwork; use cold-formed U channels for trims, light framing, and fabrication stock where cost per metre matters most.

Q: How do I get a UPN channel quotation?
A: Email your section, length, quantity, grade, and destination port to paul@sinoeaststeel.com or message us on WhatsApp — you will receive an itemized FOB/CIF quotation within 48 hours.