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API 5DP Grade-to-Depth Selector
A starting-point grade indication from planned depth and service. Higher is not always better.
Indicative only. Final grade depends on mud weight, dogleg severity, H2S partial pressure and temperature — qualify sour-service grades per NACE/standard before purchase.
G105
105 ksi / 724 MPa minimum yield
Suitable for deep directional strings.
