
NACE MR0175 / ISO 15156: What Sour Service Means for Pipe and Fittings
NACE MR0175 / ISO 15156 sets the metallurgical requirements for carbon and low-alloy steel used in sour oil and gas service. Understand when it applies and why it matters.
KNOWLEDGE
Steel procurement guides and project supply notes.

NACE MR0175 / ISO 15156 sets the metallurgical requirements for carbon and low-alloy steel used in sour oil and gas service. Understand when it applies and why it matters.

ASTM A335 covers seamless chrome-moly pipe for high-temperature service. Compare grades P11, P22 and P91 and what to verify when ordering.

ASTM A519 covers seamless carbon and alloy mechanical tubing with tight outer diameter control and strong mechanical properties for precision parts.

A practical guide to boiler tube grades and standards: carbon, carbon-molybdenum, Cr-Mo and austenitic stainless, with ASME temperature limits.

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Compare carbon, stainless, alloy and specialized seamless pipe materials against strength, corrosion, temperature and cost before you specify.

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DN600 steel pipe offers a 600 mm nominal diameter for water supply, oil and gas lines, bridges and large structures. Learn how to select it.

The root causes of flange leakage in high-temperature service and the practical measures used to prevent, repair and monitor it.