Steel insights
Pipe standards, schedules, hollow sections and selection. 10 articles.
Pipes & Tubes
API 5L line pipe explained: grades B, X42, X52, X60, X65, X70, PSL1 vs PSL2 requirements, sour service, seamless and welded types, and how to read a pipe designation.
6 November 2026 · 3 min read
Pipes & Tubes
ASTM A53 vs A106 carbon steel pipe compared: welded vs seamless, temperature service, chemistry, testing, grades A/B/C, dual certification and typical applications.
6 November 2026 · 3 min read
Pipes & Tubes
ERW vs seamless pipe explained: how each is made, weld seam, wall thickness consistency, pressure and temperature service, sizes, cost and how to choose.
6 November 2026 · 3 min read
Pipes & Tubes
Galvanized steel pipe explained: hot-dip coating, standards (ASTM A53, BS EN 10255), common uses for structures, fencing and utilities, limitations, threading and welding.
6 November 2026 · 3 min read
Pipes & Tubes
Steel pipe weight formula (OD − WT) × WT × 0.02466 with worked examples for common schedules, weight per 6 m length, galvanized allowance and stainless pipe.
6 November 2026 · 3 min read
Pipes & Tubes
Steel pipe end finishes explained: plain end (PE), bevelled end (BE), threaded and coupled (T&C), grooved ends, bevel angles and which joining method each suits.
6 November 2026 · 3 min read
Pipes & Tubes
What pipe schedules mean, how nominal pipe size relates to outside diameter, wall thickness tables for common sizes, and why SCH 40 is not one fixed thickness.
6 November 2026 · 3 min read
Pipes & Tubes
Square, rectangular and circular hollow sections explained: EN 10219 vs EN 10210, ASTM A500, sizes, wall thickness, grades, weight formula, galvanizing and uses.
6 November 2026 · 3 min read
Pipes & Tubes
Steel pipe vs tube explained: how each is specified (NPS and schedule vs OD and wall), tolerances, standards, shapes, uses and why ordering the wrong one causes problems.
6 November 2026 · 3 min read
Pipes & Tubes
Steel pipe requirements for fire sprinkler and fire water systems in Saudi Arabia: NFPA standards, ASTM A53/A795/A135, listed pipe, grooved joints, schedules and Civil Defense approvals.
6 November 2026 · 3 min read
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