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Positive Material Identification, commonly called PMI, helps buyers verify that stainless or duplex seamless pipe contains the alloying elements expected for the specified material grade. It is partic...

Non-destructive testing helps manufacturers and buyers evaluate seamless steel pipe without cutting apart or permanently damaging the product. Common methods include ultrasonic testing, eddy current t...

ASTM A511 Mechanical Tubing vs ASTM A312 Process Pipe: Avoiding a Product-Form MismatchASTM A511 mechanical tubing and ASTM A312 process pipe can be manufactured from similar stainless steel grades an...

Seamless steel pipe used in boilers and power plants must be selected for a defined system location, design pressure, design temperature, fluid condition and expected operating life. A grade suitable ...

Heat treatment is a critical manufacturing stage for austenitic and duplex seamless stainless steel pipe. It can influence microstructure, corrosion behavior, mechanical properties, dimensional condit...

The corrosion resistance of stainless steel depends not only on its grade and chemical composition but also on the condition of its surface. Heat tint, oxide scale, embedded carbon-steel particles, sh...

Schedule 10S, 40S and 80S identify standardized nominal wall thicknesses for stainless steel pipe. For the same NPS, the outside diameter normally remains constant while the wall thickness and inside ...

Seamless stainless steel pipe used in LNG and cryogenic systems must be selected using the minimum design metal temperature, design pressure, fluid composition, governing code, material toughness, pro...

Seamless Pipe for Sour Service: What Buyers Should Specify Before OrderingSeamless pipe for sour service cannot be specified by adding “for H2S service” to a standard pipe inquiry. Suitability depen...

Seamless stainless steel pipe is frequently evaluated for hydrogen production, storage, compression, transfer and distribution systems. However, specifying stainless steel or seamless construction doe...

Seamless line pipe is used in oil and gas projects where the specified diameter, wall thickness, pressure, temperature, fluid composition or project requirements make seamless manufacture an appropria...

Selecting seamless stainless steel pipe for chemical service requires more than choosing between 304L, 316L and duplex stainless steel. Corrosion performance depends on the complete process environmen...