Pipe Piling Steel Grades: EN vs. API Standards Compared

August 28, 2025

Pipe Piling Steel Grades: EN vs. API Standards Compared

EN10219-1 and API 5L PSL1 are key standards for pipe piling steel. EN grades like S235JRH to S460MH offer varying strength and weldability for structural use. API grades from B to X70 provide high strength for pipelines and piling. Both ensure corrosion resistance, dimensional precision, and suitability for projects from buildings to offshore platforms. Chemical and mechanical properties are tailored for reliability and performance.

Standard	OutsideDiameterD	WallThicknessT	Straightness	Out-of-roundness	Mass	MaxWeldBeadHeight
EN10219-2	±1% Max ±10.0mm	±10% Max ±2.0mm	0.20% of total length	±2%	±6%	T≤14.2mm: 3.5mm T>14.2mm: 4.8mm
API 5L/ISO 3183 (≤1422mm)	±0.5% ≤4.0mm	<15.0mm: ±10%/-3.5% ≥15.0mm: ±1.5mm	0.20% of total length	D/t≤75: ±1.5%	+10%/-3.5%	T≤13.0mm: 3.5mm T>13.0mm: 4.8mm
API 5L/ISO 3183 (>1422mm)	As agreed	As agreed	0.20% of total length	As agreed	As agreed	T≤13.0mm: 3.5mm T>13.0mm: 4.8mm

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Pipe Piling Steel Grades: EN vs. API Standards Compared