Control the inputs
Verify material, dimensions and preparation before value is added downstream.
Manufacturing & Infrastructure
Sixteen stages.
Sixteen stages.
One standard of care.
Follow the complete ISKCO production flow—from raw material and rolling to testing, galvanizing, finishing and dispatch.
Download Original Flow Chart
Infrastructure as a system
Every stage hands quality to the next.
Strong manufacturing is more than machinery. It is the way material, people, checks and decisions move together.
The sequence below is rebuilt directly from the supplied 17-page flow document. It keeps every production stage visible and makes the original PDF available for download.
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01
Stage 01Raw Material / Billet
Approved raw material begins the production cycle.
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02
Stage 02Billet Inspection
Incoming billets are checked before processing.
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03
Stage 03Shearing
Material is cut to the planned production length.
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04
Stage 04Re-Heating Furnace
Billets are brought to the required rolling temperature.
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05
Stage 05Hot Rolling Mill
Controlled rolling develops the required section.
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06
Stage 06Coil Build-Up
Straightening and levelling prepare uniform coils.
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07
Stage 07Slitting
Coils are slit precisely for the selected tube size.
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08
Stage 08Tube Mill
Forming and ERW welding create the tube profile.
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09
Stage 09Hydro Testing
Pressure testing verifies integrity where applicable.
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10
Stage 10Degreasing
Surface contaminants are removed before coating.
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11
Stage 11Pickling
Scale and oxidation are cleaned from the steel surface.
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12
Stage 12Fluxing
Flux treatment prepares the surface for galvanizing.
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13
Stage 13Hot Dip Galvanizing
Steel is immersed for a protective zinc coating.
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14
Stage 14Quenching & Inspection
The coated tube is cooled and visually inspected.
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15
Stage 15Threading
Specified ends are threaded to suit the application.
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16
Stage 16Finishing & Packaging
Final checks, marking and secure packing prepare dispatch.
Testing Methods & Quality Control
Checks matched to the product.
The supplied quality-control document sets out material, dimensional, mechanical, hydro, weld, coating and finish checks across the range.
01
MS Billet
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- Chemical analysis
- Spectrometer test
- Hardness test
- Dimension test
- Surface inspection
- Weight verification
02
MS Strips
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- Chemical analysis
- Tensile strength
- Thickness & width check
- Surface quality inspection
- Weight verification
03
MS Pipes
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- UTM testing
- Hydro test
- Dimension test
- Weld quality inspection
- Weight test
04
Galvanized Pipes
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- Zinc coating test
- Uniformity test
- Adhesion / hammer test
- Free bore test
- Hydro test
- Dimension & weight check
05
Railing Tubes
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- Surface finish inspection
- Bend test
- Dimension test
- Coating / polish test
06
Single Door Frame
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- Dimension accuracy
- Strength test
- Weld joint inspection
- Surface finish test
How we think about quality
Control. Confirm. Improve.
Three principles help turn a long process into a repeatable result.
Confirm performance
Use the relevant mechanical, hydro, weld, coating and finish checks for each product.
Improve the hand-off
Keep every stage clear so issues are visible, traceable and acted on early.
Process reference
Keep the complete flow chart.
Download the original supplied manufacturing-flow PDF or speak with our team about a product requirement.