ASTM A270 TP316L Bright Annealed Sanitary Seamless Tube

What is the ASTM A270 specification?

ASTM A270 specification is covering the grade of welded, seamless austenitic/ferrite and heavily cold worked welded SS sanitary tubing. Those are intended for use in the food industry, dairy industry and are also having special surface finishes.

 

What is the ASTM A270 TP316L sanitary stainless pipe?

A270 TP316L sanitary stainless pipe works well in elevated pressure applications and showcases enhanced strength allowing it to be very robust in harsh environments. The pipes are also tolerant to pitting by acids and crevice corrosion in the system.316L Austenitic steel grades pipe are very formable and weldable. These sanitary tubes are made of a highly corrosion-resistant, maintenance-free substance that provides hardness at low temperatures and maintains mechanical properties even when temperatures climb to high levels. Austenitic steel grades have 30-minute fire resistance in stainless steel systems without extra fire ety.

 

What is the wall thickness of ASTM A270 TP316L sanitary stainless pipe?

ASTM A270 TP316L sanitary stainless pipe usually refers to the small pipe diameters, normally from 1/2" to 2 1/2", thickness from 0.049 inch (1.24mm) to 0.15 inch (3.81mm). The maximum outer diameter of ASTM A270 TP316L tubing is 12 inch (316L.8 mm). ASTM A270 TP316L tubing using inch pound as the standard unit of measure. ASTM A270 TP316L Tube wall thickness tolerance shall not vary more than 12.5%.

 

TP316L Equivalent

Grade	WERKSTOFF NR.	UNS	JIS	BS	GOST	AFNOR	EN
TP316L	1.4404 / 1.4435	S31603	SUS 316L	316LS11 / 316LS13	03Ch17N14M3 / 03Ch17N14M2	Z3CND17‐11‐02 / Z3CND18‐14‐03	X2CrNiMo17-12-2 / X2CrNiMo18-14-3

ASTM A270 TP316L Stainless Steel Tube Chemical Composition

Grade	UNS	C	Mn	P	S	Si	Cr	Ni	Mo
ASTM A270 TP316L	S31603	0.035	2	0.045	0.03	1	16.0-18.0	10.0-14.0	2.0-3.0

ASTM A270 TP316L Mechanical Properties

Material	Heat	Temperure	Tensile Strength	Yield Strength	Elongation %, Min
	Treatment	Min.	Ksi (MPa), Min.	Ksi (MPa), Min.
		º F(º C)
Asme A270 TP316L	Solution	1900 (1040)	70(485)	25(170)	35

Physical properties of ASTM A270 TP316L stainless steel in the annealed condition

Grade	Density (kg/m3)	Elastic Modulus (GPa)	Mean Coefficient of Thermal Expansion (μm/m/°C)			Thermal Conductivity (W/m.K)		Specific Heat 0-100°C (J/kg.K)	Electrical Resistivity (nΩ.m)
			0-100°C	0-315°C	0-538°C	at 100°C	at 500°C
ASTM A270 TP316L	8000	193	17.2	17.8	18.4	16.2	21.5	500	720

 

 

Annealing

All tubing shall be furnished in the heat-treated condition, Hydrogen bright annealed in line to 1900°F(1040° C) minimum and rapidly quenched.

 

Surface Finishes

ASTM A270 permits Mill Finish, Mechanically Polished to a variety of grit finishes, or Electropolished ID with Mechanically Polished OD.

The surface finish is 20 Ra ID maximum, 30 Ra OD maximum surface roughness measured with the profilometer reading at 90 degrees to the major polishing pattern. Our polishing techniques result in surface finishes that lead the industry. All tubing is printed with size, alloy, and heat number for full traceability.

 

We offer ASTM A270 TP316L sanitary tubing, primarily for use in the baking, beverage, cosmetics, dairy, food, and pharmaceutical industries. Polished tubing typically utilizes mechanical or electropolishing of the inside and/or outside diameter to meet or exceed 3-A standards, with an inside diameter polish of 20 Ra and an outside diameter polish of 150 Grit or 32 Ra. This tubing exhibits excellent antimicrobial properties, effectively inhibiting bacterial growth and reproduction. Its smooth surface resists the adhesion of dirt and bacteria, ensuring hygienic and safe use.

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ASTM A270 TP 316L Sanitary Tube Specifications

Standard	ASTM A270
Roughness	0.2 – 1.0 um
Grades	TP316 / TP316L
Surface	Mechanical Polishing
Polishing Grit	180, 240, 320, 400, 600 Grit
Outside Diameter	12.7 Mm – 304 Mm
Thickness	0.5 Mm – 5 Mm
Length	6 M Or Cut To Length