ASME BPE Tube

ASME BPE, ASTM A270 S2, 3-A Sanitary Standard
AISI 316L / 1.4404
1/2" to 8"
0.065″ - 0.109″
SF1 / SF4
Welded , Seamless
EN10204 3.1
ISO 9001:2015 , PED 2014/68/EU , AD 2000-WO

12.7mm - 203.2mm
1.65mm - 2.77mm
0.38 µm - 0.8 µm

ASME BPE Standard, ASTM A270 S2
AISI 316L / 1.4404
1/2" to 8"
0.065″ - 0.109″
SF1 / SF4
Welded , Seamless
EN10204 3.1
3-A, ISO 9001:2015 , PED 2014/68/EU , AD 2000-WO

12.7mm - 203.2mm
1.65mm - 2.77mm
0.38 µm - 0.8 µm

ASME BPE tubes(Bioprocessing Equipment) refers to high-purity stainless steel tubing manufactured, finished, and tested in strict compliance with the ASME BPE Standard. This global standard governs the design, materials, fabrication, and surface finishes of equipment and systems used in sanitary or hygienic applications, primarily within the biopharmaceutical, pharmaceutical, food, beverage, and personal care industries.

Biopharmaceutical: Purified Water (PW), Water-for-Injection (WFI), Clean-in-Place (CIP), Steam-in-Place (SIP) lines, fermentation, cell culture, and purification process piping.
Pharmaceutical: Process fluids, solvent distribution, API (Active Pharmaceutical Ingredient) manufacturing.
Food & Beverage: High-purity ingredient transfer, final product filling.
Cosmetics & Personal Care: High-value product manufacturing.

ASME BPE Tubing Dimensions & Tolerances

Size OD		Wall Thickness		OD Tolerance		Length Tolerance		Wall Thickness Tolerance
(in)	(mm)	(in)	(mm)	(in)	(mm)	(in)	(mm)	(%)
½	12.7	0.065	1.65	+/-0.005	+/-0.13	+⅛, -0	+3.18, -0	+/-10.0%
¾	19.1	0.065	1.65	+/-0.005	+/-0.13	+⅛, -0	+3.18, -0	+/-10.0%
1	25.4	0.065	1.65	+/-0.005	+/-0.13	+⅛, -0	+3.18, -0	+/-10.0%
1½	38.1	0.065	1.65	+/-0.008	+/-0.20	+⅛, -0	+3.18, -0	+/-10.0%
2	50.8	0.065	1.65	+/-0.008	+/-0.20	+⅛, -0	+3.18, -0	+/-10.0%
2½	63.5	0.065	1.65	+/-0.010	+/-0.25	+⅛, -0	+3.18, -0	+/-10.0%
3	76.2	0.065	1.65	+/-0.010	+/-0.25	+⅛, -0	+3.18, -0	+/-10.0%
4	101.6	0.083	2.11	+/-0.015	+/-0.38	+⅛, -0	+3.18, -0	+/-10.0%
6	152.4	0.109	2.77	+/-0.030	+/-0.76	+1, -0	+25.4, -0	+/-10.0%

Surface Finish Options

Biopharmaceutical Applications

Upstream Processing: ≤ 0.5 µm Ra, electropolished preferred
Downstream Processing: ≤ 0.38 µm Ra, mandatory electropolish
WFI Systems: ≤ 0.25 µm Ra, full electropolish with 100% inspection

Pharmaceutical Applications

API Manufacturing: ≤ 0.5 µm Ra, depends on product compatibility
Formulation/Filling: ≤ 0.38 µm Ra, electropolished
CIP/SIP Systems: ≤ 0.38 µm Ra, corrosion-resistant finish

Finish Code	Product Contact Surface (Max Ra)	Product Contact Surface Finish Treatment (ID)
-SF1 (PL)	20 µ-inch (0.51 µm)	Mechanical Polish
-SF4 (PM)	15 µ-inch (0.38 µm)	Electropolished

Material Composition (ASME BPE)

Element	AISI 316L (wt%)
Carbon (max)	0.035
Manganese (max)	2
Phosphorus (max)	0.04
Sulfur	0.005 – 0.017
Silicon (max)	0.75
Nickel	10.0-15.0
Chromium	16.0-18.0
Molybdenum	2.0-3.0