API PSL1 X46 DN450 HFW Steel Pipe

Mechanical properties of API 5L PSL1 X46 DN600 HFW steel pipe
Standard: API Spec 5L PSL1 | Steel grade: X46 (L320) | Technology: HFW high frequency straight seam welding.
Core mechanical index (tube, minimum value)
Yield strength (R.): ≥ 317 MPa (46,000 psi)
Tensile strength (r): ≥ 448 MPa (63,100 psi)
Elongation after breaking: ≥ 21% (gauge distance 50mm)
Yield ratio: about 0.71(317/448), with sufficient plastic reserve.
Weld performance requirements
The tensile strength of weld is ≥ 448 MPa, which is equal to that of pipe body.
It is necessary to pass flattening test and guided bending test to ensure the toughness and formability of weld.
Basic parameters of DN600 specification
Nominal diameter: DN600(NPS 24)
Outside diameter od: 609.6mm.
Common wall thickness: 8.74 mm, 9.53 mm, 11.13 mm and 12.7 mm
Performance characteristics and applicable scenarios
Moderate strength: X46 is the mainstream steel grade for oil and gas and municipal medium and high pressure pipelines, giving consideration to strength and economy.
Good weldability: the weld seam of HFW process is stable, which is suitable for long-distance and large-diameter trunk pipe network.
PSL1 positioning: it meets the normal working conditions, has no requirement of forced low temperature shock, and has better cost.