Martensitic 13-5PH Alloy Seamless Line Pipe
13-5PH precipitation-hardening martensitic alloy seamless line pipe for aggressive oilfield pipeline conditions. Fits HTS 7304.19.50 as other alloy steel seamless line pipe, leveraging PH properties for strength without full stainless designation. Used in HP/HT reservoir tiebacks.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If suitable for aircraft hydraulic systems
Aerospace-spec tubes have precision classifications.
If welded and over 406.4mm OD
Large-diameter welded pipes for pipelines use different subheadings.
If as gas turbine engine parts
Specific machinery end-use overrides tube classification.
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Import Tips & Compliance
• Provide PH heat treatment and hardness test results for alloy verification
• Use end-user affidavits confirming pipeline vs. downhole application
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