C-Purlin is produced from high tensile zinc-galvanised steel through cold roll forming process to ensure high degree of accuracy and consistency in the dimensions.
The design of light weight, high strength of steel, zinc coated finish, various hole punch process and cut to customer ordered lenght enable insta’lation upon delivery without further fabrication and painting work at side. The erected purlins also require minimal maintenance throughout the life of building.

MATERIAL SPECIFICATION
Steel Thickness : 0.75mm, 1.00mm, 1.6mm, 2.0mm, 2.5mm
Steel Grade : ASTM A446 Grade D
Yield Strength : 350 MPa (Minimum)
Zinc Coating : 275 g/m2
TOLERANCES
C-Purlin is subject to the following tolerances:
Depth
: ±1.0mm
Flange Width : ±2.0mm
Length : ±3.0mm
Hole Centers : ±4.0mm

c-purlin_03

c-purlin_06

C-PURLIN DIMENSIONS & PROPERTIES

Dimensions Area Second Moment
Of Area
Radius Of Gyration
D B L t AS MASS /UNIT LENGTH Ix Iy Zx Zy rx ry Xc Xs
mm mm mm mm mm2 Kg/m 104mm4 104mm4 103mm3 103mm3 mm mm mm mm
75075 75 40 9 0.75 128 0.94 0.12 0.03 3.22 1.07 30.80 14.90 13.40 26.60
7510 75 40 9 1.00 168 1.40 0.16 0.04 4.24 1.40 30.70 14.80 13.40 26.60
10010 100 50 10 1.00 210 1.72 0.33 0.06 6.62 1.86 39.70 17.60 15.30 23.80
10012 100 45 12 1.20 251 1.88 0.39 0.08 7.89 2.21 39.60 17.50 15.30 23.70
10016 100 50 16 1.60 351 2.80 0.59 0.14 11.17 4.03 39.90 18.60 16.30 26.20
10020 100 50 18 2.00 440 3.45 0.76 0.19 14.84 5.45 39.70 18.40 16.10 26.00
12516 125 65 16 1.60 391 3.10 1.02 0.15 15.74 4.30 48.90 18.40 14.90 25.00
12520 125 65 18 2.00 485 3.82 1.24 0.18 19.70 5.51 48.60 18.60 15.20 25.60
20016 200 75 16 1.60 591 4.76 3.79 0.45 37.69 7.07 78.60 27.30 21.00 34.90
20020 200 75 18 2.00 740 5.90 4.78 0.55 46.80 9.47 78.30 27.10 20.80 34.70
20025 200 75 20 2.50 923 7.39 5.94 0.67 58.57 12.27 78.10 26.90 20.60 34.40
Span(mm) Purlin Spacing 1200mm Purlin Spacing 1500mm Purlin Spacing 1800mm Purlin Spacing 2100mm
5000 10016 10020 12516
6000 12520 12520 15016
7000 15020 20016 20016
7500 20016 20016 20016 20020
8000 20016 20016 20020 20025
9000 20020 20020 20025 20025
10000 20025 20025

The Purlin Quick Selection Table is derived in accoi’dance to BS 5950: Part 5:1987, “Code Of Practice Foi Design Of Cold Formed Section” with maximum roof pitch 300 and roofing sheet distributed load 6.55Kg/rn2. This table is intended to be used together with judgment and experience of professional personel who is competent to evaluate the significance and limitations of the materials.

c-purlin_07

BATTEN- DIMENSIONS & PROPERTIES

Dimensions Area Second Moment
Of Area
Radius Of Gyration
D B L t AS MASS / UNIT LENGTH Y Ix Iy Zx Zy rx ry Xc Xs
mm mm mm mm mm2 Kg/m mm 104mm4 104mm4 103mm3 103mm3 mm mm mm mm
U43055 43.5 25 44 0.55 78 0.57 1.95 4.02 0.87 0.87 15.8 22.7 46.0 22.3
U43075 43.5 25 44 0.75 106 0.79 2.55 5.42 1.17 1.18 15.6 22.7 45.9 21.9
U61075 61 33 70 0.75 144 1.12 30.70 7.23 11.20 2.35 2.23 22.4 27.9 50.1 30.2
U6110 61 33 70 1.00 190 1.51 30.70 9.46 17.77 3.08 2.95 22.3 27.8 50.1 30.3

WARRANTY SAMPLE

c-purlin_10

c-purlin_14
realzincTM Enchance is the galvanized steel with the thin organic coating layer. Its colored and transparent pigmented layer further increase the corrosion resistance performance.
Typical usages Specially developed for structural system, including truss, purlin and batlan.
Standard JIS G3302
Preferred substrates Cold-reduced carbon steel
Post-treatment Organic coating
Dimensions BMT: O.20-2.OOmm, width: 914—1219mm
Zinc coating mass 112-Z30 (120-300g/m2)
Surface appearance Minimized / Extra Smooth Spangle with blue color

PRODUCT COMPLIANANCE TEST REPORT

Test report Method of test
Fire test BS476: Part 6: 1 989+A1: 2009 (Fire test on building materials and structures)
Part 6: Method of test for fire propagation for products.
BS476: Part 7:1997 (Fire test on building materials and structures)
Part 7: Surface spread of flame test.
RoHS test R0HS Directive 2011 / 65 / EU Annex II
REACH test Candidate list of SVHC for authorization published by European Chemicals Agency (ECHA)
Chemical Composition
Guaranteed max % Guaranteed max %
Carbon
0.30 0.30
Silicon 0.04 0.04
Manganese 2.50 2.50
Phosporus 0.20 0.20
Sulphur 0.05 0.05
c-purlin_14

realzincTM is the most economical and effective coated steel product with application of Zn coating (Known as Galvanizing process) that provides proper steel corrosion protection. GI combines two main protection effects, barrier effect and galvanic effect, that helps in preventing steel substrate from rusting, barrier and galvanic protection effect:

a. Structural quality – trunk, deck, etc
b. Commercial quality – air-cond,ducting, home appliance, hardware.
c. Drawing quality – Satellite panel, home application, etc.
JIS G3302
Cold-reduced carbon steel
Passivation coating
a. Structural quality- BMT: 0.17—2.00mm, width: 914—1250mm
b. Commercial quality – BMT: 0.17—2.00mm, width: 914—1250mm
c. Drawing quality – BMT: 0.40—1.20mm, width: 914—1219mm
Z 1 2—Z30 (1 20-300g/m2)
Minimized / Extra Smooth Spangle with blue color

Product compliance test report

Method of test
BS476: Part 6: 1 989+A1: 2009 (Fire test on building materials and structures)
Part 6: Method of test for fire propagation for products.
BS476: Part 7:1997 (Fire test on building materials and structures)
Part 7: Surface spread of flame test.
RoHS Directive 2011 / 65 / EU Annex II
Candidate list of SVHC for authorization published by European Chemicals Agency (ECHA)
Mechanical properties
Steel grade Tensite (MPa) Yield strength (MPa) Elongation (%)
CGC440 440min 355min . 18min.
CGC490 490min. 365min. 16min.
CGC570 570min. 560min.
Mechanical properties
Steel grade Tensite (MPa) Yield strength (MPa) Elongation (%)
SGCH
SGCC 270min. 205min.
SGC340 340min. 245min. 20min.
SGC400 400min. 295min. 18min.
SGC440 440min 355min. 18min.
SGC490 490min. 365min. 16min.
SGC570 570min. 560min.