GB Channel Steel
Common GB channels for projects using Chinese structural grades and metric sizes.
GB/T 706-2016 · GB/T 700 / GB/T 1591
Global Steel Supply & Processing
GB CHANNEL · UPN · UPE · AMERICAN C CHANNEL
Source structural steel channels for your fabrication, distribution and project orders. Share the profile, steel grade, cut length, number of pieces and destination port for pricing.
Check channel sizes and kg/m ↓Identify your required channel series by its flange profile, regional standard and cross-section designation.
Common GB channels for projects using Chinese structural grades and metric sizes.
GB/T 706-2016 · GB/T 700 / GB/T 1591European hot-rolled U sections with tapered inner flange faces for structural fabrication.
EN 10365:2026 · EN 10279European channels with parallel flange faces, often specified for connection details.
EN 10365:2026 · EN 10279ASTM C-shaped channels identified by nominal depth and lb/ft section mass.
ASTM A6/A6M · material by orderSend your profile list, individual lengths and quantities in one enquiry.
Choose the structural grade and dimensional profile separately so your order is checked against the right requirements.
| Channel profile | Dimensions / tolerances |
|---|---|
| GB Hot-Rolled Channel | GB/T 706-2016; new GB/T 706-2026 effective 1 December 2026 |
| European UPN / UPE | EN 10365:2026 nominal dimensions and mass; EN 10279 shape and dimensional tolerances |
| American C / MC Channels | ASTM A6/A6M applicable nominal section designations and tolerances |
| Cold-Formed C Sections | Specify actual cold-formed section drawing and the applicable forming / coating standard |
| GB | Q235B · Q355B |
| EN | S235JR · S355JR |
| ASTM | ASTM A36 and other agreed grades |
| JIS | SS400 and other specified grades |
Material grade, mechanical testing and chemical composition follow the specified steel standard. Channel dimensions follow the selected profile standard. Confirm your grade and section combination during quotation.
See the flange configuration and web dimensions needed for accurate fabrication, welding and fit-up.
UPN uses tapered inner flange surfaces; UPE has parallel flange surfaces. Match the section specified in your structural drawings.
Check overall depth, flange width, web thickness and nominal flange thickness with the selected size standard.
Overall height of the U/C section in the selected series.
Width of the channel flange used for connection and clearance planning.
Nominal value used to estimate bundle and shipment weight.
Use the reference channel designations to start your buying list. Select a row to load its nominal kg/m into the weight calculator.
| Section | Reference standard | h (mm) | b (mm) | tw (mm) | tf (mm) | kg/m | Calculate |
|---|---|---|---|---|---|---|---|
| GB 8# | GB/T 706-2016 | 80 | 43 | 5.0 | 8.0 | 8.04 | |
| GB 10# | GB/T 706-2016 | 100 | 48 | 5.3 | 8.5 | 10.00 | |
| GB 14a | GB/T 706-2016 | 140 | 58 | 6.0 | 9.5 | 14.53 | |
| GB 16a | GB/T 706-2016 | 160 | 63 | 6.5 | 10.0 | 17.23 | |
| GB 20a | GB/T 706-2016 | 200 | 73 | 7.0 | 11.0 | 22.63 | |
| UPN 80 | EN 10365:2026 | 80 | 45 | 6.0 | 8.0 | 8.64 | |
| UPN 100 | EN 10365:2026 | 100 | 50 | 6.0 | 8.5 | 10.60 | |
| UPN 120 | EN 10365:2026 | 120 | 55 | 7.0 | 9.0 | 13.40 | |
| UPN 160 | EN 10365:2026 | 160 | 65 | 7.5 | 10.5 | 18.80 | |
| UPE 100 | EN 10365:2026 | 100 | 55 | 4.5 | 7.5 | 9.82 | |
| UPE 120 | EN 10365:2026 | 120 | 60 | 5.0 | 8.0 | 12.10 | |
| UPE 160 | EN 10365:2026 | 160 | 70 | 5.5 | 9.5 | 17.00 | |
| UPE 200 | EN 10365:2026 | 200 | 80 | 6.0 | 11.0 | 22.80 | |
| C6×8.2 | ASTM A6/A6M | 152.4 | — | — | — | 12.20 | |
| C8×11.5 | ASTM A6/A6M | 203.2 | — | — | — | 17.11 |
Nominal reference section data; UPN/UPE and GB dimensions follow their respective profiles. American C section designations use nominal depth × lb/ft; metric mass is converted for comparison. Final section geometry, supply sizes and tolerances follow the agreed standard and manufacturer data.
Estimate shipment weight using the selected channel's kg/m, cut length and number of pieces.
Theoretical weight = kg/m × length × number of pieces ÷ 1000. Actual order and shipping weight follow agreed size tolerances and measurement terms.
For project orders, you can attach a section schedule or cutting drawing through the RFQ form.
Buy steel channels for engineered structural parts, equipment support and regular distributor inventory programs.
Channel members for steel buildings, secondary framing and industrial platform assemblies.
Fabricated channels for industrial machinery, equipment skids and handling frames.
Secondary framing, structural support members and fabricated connections.
Channel members for machinery supports, bases and plant installations.
Structural edge channels and support members in engineered access structures.
Channel profiles used in transport frames and fabrication where designed.
Industrial storage structures and handling equipment frames.
Channel members and brackets selected under project design requirements.
Our factory scale, combined inventory and order-based material review support your recurring structural steel purchasing.
Discuss repeat channel orders with a company manufacturing 8 million metric tons of steel annually across its full range.
Manufacturing ↗Send your size list for current section stock and production checks. Company-wide inventory covers multiple steel categories.
Steel Inventory ↗Specify profile standard, steel grade, section weight, cutting length and required test documents together.
Quality Control ↗Include your destination port, packing requirements and requested delivery schedule for coordinated supply terms.
Our manufacturing operations support steel supply at industrial scale. Share your required channel standard, material grade, section designation and quantity to discuss production or stock arrangements.
Share the section series, dimensions, grade, length and tonnage. Our team will confirm current stock or production lead time for your exact order.
Specify the section tolerances, steel grade and traceability requirements on your purchase order. Inspection can cover the finished geometry and material acceptance scope.
Send drawings and required tolerances for a channel section cutting quotation. Processing can be coordinated with your material purchase.
Confirm bundle weights, lifting requirements, total length and destination port for your order. We will include the agreed packing and shipment terms with your quotation.
Explore adjacent sections for your fabrication schedule and link your channel requirements to broader project steel purchases.
UPN channels have tapered inner flange faces; UPE profiles have parallel flange faces. Your drawing and section schedule determine the required designation.
Send the channel series, full section designation, material grade, length, number of pieces, inspection scope and destination port.
Use the relevant nominal kg/m section mass multiplied by cut length in metres and the number of pieces. Divide the total kilograms by 1000 for metric tons.
Include the required cut lengths, drawings, MTC details and inspection scope in your RFQ. The applicable services are confirmed during quotation.
Send your required grade, dimensions, quantity and destination. Our team will review the inquiry.