NPS 3/8 Sch 40 Steel Pipe, ASME B36.10

The NPS 3/8 Sch 40 steel pipe (ASME B36.10): outside diameter 17.145 mm, wall thickness 2.3114 mm, outside diameter, inches 0.675 mm. Available as one length, 304.8 mm, as simplified STEP.

How these parts are made, and what the levels mean: read the method

• Also searched as: NPS 3/8 Sch 40 pipe, NPS 3/8 Sch 40 x 304.8 pipes
• Model id: asme-b36-10-nps3-8-sch40
• Standard: ASME B36.10:2022 · size NPS 3/8 Sch 40

Lengths

Length (mm)	Part key	Simplified
304.8	asme-b36-10-nps3-8-sch40x304-8	STEP

Dimensions

Symbol	Name	min	nom	max	Modeled	Rule	Level
D	Outside diameter		17.145		17.145	nominal	L1
T	Wall thickness		2.3114		2.3114	nominal	L1
D_in	Outside diameter, inches		0.675		0.675	nominal	L1
T_in	Wall thickness, inches		0.091		0.091	nominal	L1

Drawing

As a PDF: CC-ASMEB36-10-SZ-nps3-8-sch40.pdf.

The NPS 3/8 Sch 40 steel pipe beside the NPS 1/4 Sch 80 and the NPS 3/8 Sch 80

The NPS 3/8 Sch 40 is number 5 of the 18 ASME B36.10 steel pipes published here, listed from NPS 1/8 Sch 40 to NPS 2 Sch 80.

• Outside diameter (D): 17.145 mm on the NPS 3/8 Sch 40 steel pipe, against 13.716 mm on the NPS 1/4 Sch 80 and 17.145 mm on the NPS 3/8 Sch 80.
• Wall thickness (T): 2.3114 mm on the NPS 3/8 Sch 40 steel pipe, against 3.0226 mm on the NPS 1/4 Sch 80 and 3.2004 mm on the NPS 3/8 Sch 80.
• Outside diameter, inches (D_in): 0.675 mm on the NPS 3/8 Sch 40 steel pipe, against 0.54 mm on the NPS 1/4 Sch 80 and 0.675 mm on the NPS 3/8 Sch 80.
• Wall thickness, inches (T_in): 0.091 mm on the NPS 3/8 Sch 40 steel pipe, against 0.119 mm on the NPS 1/4 Sch 80 and 0.126 mm on the NPS 3/8 Sch 80.

Other sizes

• One size smaller: NPS 1/4 Sch 80 Steel Pipe, ASME B36.10.
• One size larger: NPS 3/8 Sch 80 Steel Pipe, ASME B36.10.

Documents

• CC-ASMEB36-10-DS-nps3-8-sch40.pdf: nps3-8-sch40 datasheet: values with levels, lengths, sources
• CC-ASMEB36-10-SZ-nps3-8-sch40.pdf: nps3-8-sch40 drawing: this size's values on the views
• parts.json: the part record of every length (the platform contract)

Sources

etb-b36-10, steeltube-b36-10. Full citations: the method page and this size's datasheet.

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