GRADE GUIDE · A53
A53 is the general-purpose carbon steel pipe specification — water, compressed air, low-pressure steam, fire-fighting mains and structural tube duty. It comes welded (Type E, the common ERW form) or seamless (Type S), usually as Grade B, and is the workhorse pipe of building services across the UAE.
Also listed as: ASTM A53 Gr.B · Type E (ERW) · Type S (seamless)
Carbon steel · balance_piece
OD 114.3 × 8.56 × 6000 mm · 133.93 kg
DIC · Origin No · 33 pcs · Listed 14 Aug 2026
AED 32,145.00 /pc≈ AED 240.0/kg · excl. VAT
Carbon steel · balance_piece
OD 21.3 × 2.77 × 6000 mm · 7.59 kg
DIC · Origin No · 30 pcs · Listed 14 Aug 2026
AED 1,825.00 /pc≈ AED 240.4/kg · excl. VAT
Carbon steel · balance_piece
OD 42.2 × 3.56 × 6000 mm · 20.35 kg
DIC · Origin No · 37 pcs · Listed 14 Aug 2026
AED 4,885.00 /pc≈ AED 240.0/kg · excl. VAT
Carbon steel · balance_piece
OD 42.2 × 4.85 × 6000 mm · 26.8 kg
DIC · Origin No · 1 pcs · Listed 14 Aug 2026
AED 6,435.00 /pc≈ AED 240.1/kg · excl. VAT
Carbon steel · balance_piece
OD 48.3 × 3.68 × 6000 mm · 24.3 kg
DIC · Origin No · 6 pcs · Listed 14 Aug 2026
AED 5,835.00 /pc≈ AED 240.1/kg · excl. VAT
Carbon steel · balance_piece
OD 323.8 × 9.53 × 11800 mm · 871.56 kg
DIC · Origin No · 1 pcs · Listed 14 Aug 2026
AED 209,175.00 /pc≈ AED 240.0/kg · excl. VAT
Subject to Prior Sale and Final Availability Confirmation.
Where A106 guards refinery process lines, A53 handles everything else that flows: chilled-water risers, plant air, sprinkler mains, handrails pressed into pipe duty. Grade B ERW is the overwhelming majority of stock, frequently galvanised for water service. It threads, grooves and welds without fuss, which is exactly what mechanical contractors need.
Off-cuts fit this trade naturally — a riser extension or a sprinkler branch needs two metres, not a bundle. Check the listing's OD, schedule and finish (black or galvanised); dual-certified A53/A106 seamless pieces also turn up and satisfy either spec.
Yes — Sch.10 and Sch.40 A53 ERW are the standard sprinkler pipes, subject to the project's approval requirements. Grooved or threaded joints both work on it.
Only if the line class allows it — A106's seamless requirement and high-temperature rating are the reason it is specified. Downgrade substitutions in pressure systems need engineering approval, full stop.
Yes — cutting exposes bare steel and welding burns the zinc back. Touch up with zinc-rich paint on threads and heat-affected zones to keep the corrosion protection continuous.