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  • Carbon Steel Channel

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Carbon Steel Channel
High Load-Bearing Capacity: Scientific cross-section design for optimal load distribution
Easy Installation: Standardized dimensions for rapid assembly
Reliable Material Quality: Premium carbon steel ensures long-term stability
Excellent Workability: Easy to cut, weld, and drill
Cost-Effective: Economical structural solution
Phone：+86 18954208811
Email：info@hwdsteel.com
WhatsApp：+86 18954208811
Add：Keda Xunfei Weilaigang Building, No. 1 Jiangshan South Road, Huangdao District, Qingdao City, Shandong Province
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◉ PRODUCT SPECIFICATION


Standard Specifications


Model

Height (mm)

Flange Width (mm)

Web Thickness (mm)

Theoretical Weight (kg/m)

Cross-sectional Area (cm²)

C50×37

50

37

4.5

5.44

6.93

C80×43

80

43

5.0

8.04

10.24

C100×48

100

48

5.3

10.00

12.74

C120×53

120

53

5.5

12.06

15.36

C140×58

140

58

6.0

14.53

18.51

C160×63

160

63

6.5

17.24

21.95

C180×68

180

68

7.0

20.17

25.69

C200×73

200

73

7.5

23.18

29.29


Material Grades


  • Q235B: General structural steel with good comprehensive properties

  • Q345B: High-strength low-alloy structural steel

  • SS400: Japanese standard general structural steel

  • ASTM A36: American standard universal structural steel


Mechanical Properties


Material Grade

Yield Strength (MPa)

Tensile Strength (MPa)

Elongation (%)

Impact Energy (J)

Q235B

≥235

375-500

≥26

≥27

Q345B

≥345

470-630

≥21

≥34

SS400

≥245

400-510

≥17

-

ASTM A36

≥250

400-550

≥20

-


Dimensional Tolerances


Section Dimension Tolerances


  • Height Tolerance: ±2.0mm (height ≤180mm), ±2.5mm (height >180mm)

  • Flange Width Tolerance: ±2.0mm (width ≤70mm), ±2.5mm (width >70mm)

  • Web Thickness Tolerance: ±0.5mm (thickness ≤6mm), ±0.6mm (thickness >6mm)


Length and Form Tolerances


  • Standard Lengths: 6m, 9m, 12m (customizable)

  • Length Tolerance: 0/+50mm (standard), ±10mm (precision)

  • Straightness: ≤2mm/m, total straightness ≤0.2% × length

  • Twist: ≤1.5mm/m


Surface Quality Grades


Surface Treatment Options


  • Hot-rolled Black: Natural hot-rolled condition with oxide layer

  • Sandblasted: Removes mill scale, reveals metal surface

  • Primed: Alkyd anti-rust primer, thickness 20-30μm

  • Hot-dip Galvanized: Zinc coating ≥65μm, excellent corrosion resistance

  • Zinc-rich Epoxy: Heavy-duty anti-corrosion coating, thickness 60-80μm


Surface Defect Allowances

  • Scratch Depth: ≤0.2mm (web ≤8mm), ≤0.3mm (web >8mm)

  • Pitting Depth: ≤0.3mm (web ≤8mm), ≤0.4mm (web >8mm)

  • Waviness: ≤3mm/m

  • Camber: ≤2mm/m


Technical Characteristics


Section Properties


Model

Moment of Inertia Ix (cm⁴)

Moment of Inertia Iy (cm⁴)

Section Modulus Wx (cm³)

Section Modulus Wy (cm³)

Radius of Gyration ix (cm)

Radius of Gyration iy (cm)

C80×43

56.9

9.6

14.2

3.2

2.36

0.97

C100×48

106.4

15.9

21.2

4.3

2.89

1.12

C120×53

198.3

25.4

28.3

5.8

3.59

1.29

C140×58

322.8

38.5

38.2

7.5

4.18

1.44

C160×63

489.0

55.8

49.0

9.5

4.72

1.59

C180×68

706.2

78.8

61.8

12.0

5.24

1.75

C200×73

983.5

108.3

76.5

15.0

5.79

1.92


Application Fields


Building Structures


  • Roof Purlins: Industrial plants, warehouse roof support systems

  • Wall Girts: Horizontal support for building envelope structures

  • Platform Frames: Load-bearing frames for work platforms and access ways

  • Lintels: Load-bearing components above door and window openings


Industrial Equipment


  • Equipment Supports: Framework for machinery installation

  • Conveyor Frames: Support structures for belt and roller conveyors

  • Safety Guardrails: Equipment protection barriers

  • Cable Trays: Support systems for cable installation


Other Applications


  • Vehicle Manufacturing: Truck bodies, trailer chassis

  • Storage Racking: Support members for heavy-duty storage systems

  • Agricultural Facilities: Greenhouse frameworks, breeding equipment structures

◉ Surfcae selection

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SURFACE CHARACTERISTIC SUMMARY OF MANUFACTURING METHOD APPLICATION
NO.1 Silvery white Hot rolled to specified thickness Do not need to have a glossy surface use
lackluster
NO.2D Silvery white After cold rolling, heat treatment and pickling are carried out General material, deep material
NO.2B Gloss is stronger than No.2D After No.2D treatment, the final light cold rolling is carried out through the polishing roller The general material
BA As bright as a sixpence No standard, but usually a bright annealed surface with high reflectivity. Building materials, kitchen utensils
NO.3 Rough lapping Grind with 100~200# (unit) strop tape Building materials, kitchen utensils
NO.4 Intermediate grinding Polished surface obtained by grinding with 150~180# strop abrasive tape Building materials, kitchen utensils
NO.240 Fine lapping Grinding with 240# strop abrasive tape kitchenware
NO.320 Very fine grinding Grinding was carried out with 320# strop abrasive tape kitchenware
NO.400 The luster is close to BA Use 400# polishing wheel to grind General timber, building timber, kitchen appliances
HL Hairline grinding Suitable particle material for hair stripe grinding (150~240#) with many grains Building, construction material
NO.7 It's close to mirror grinding Use a 600# rotary polishing wheel to grind For art or decoration
NO.8 Mirror ultrafinish The mirror is ground with a polishing wheel Reflector, for decoration

◉ PRODUCTION AND WAREHOUSING

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Keda Xunfei Weilaigang Building, No. 1 Jiangshan South Road, Huangdao District, Qingdao City, Shandong Province