What is A269 TP316 material?

What is ASTM A269 material?
ASTM A269 Seamless Stainless Steel Tubing is used for low temperature and high temperature services. These pipes could be made from austenitic steel types under electric resistant weld, electric fusion weld or seamless cold drawing mechanisms. The SA269 Tubing can also have different finishes and can be heat treated.

 

What is A269 TP316 material?

ASTM A269 Tp316 stainless steel pipe is a seamless, welded austenitic steel with a nominal wall thickness of 316 austenitic stainless steel. Composed of 16% chromium, 10% nickel, and 2% molybdenum, ASTM A269 Tp316 pipe is available in seamless, welded, and electric resistance welded (ERW) constructions. SA269 Gr 316 pipe is widely used in various pressure vessel grades. It is exceptionally strong and protects the pipe from pitting and crevice corrosion caused by stress-inducing devices.

 

A269 Grade TP316 Cold Drawn Seamless Tube HS Code

HS CODE	73044100

 

Equivalent material of A269 Tp316 Stainless Steel Tube

GRADE	Unified Numbering System	EURONORM		OLD BRITISH		SWEDISH SS	Japanese Industrial Standards
		NO	NAME	British Standards	European Standards
316	S31600	1.4401	X5CrNiMo17-12-2	316S31	58H, 58J	2347	SUS 316

 

ASME SA269 Tp 316 Tubing Chemical Composition

Grade		Manganese	Sulfur	Silicon	Carbon	Phosphorus	Chromium	Molybdenum	Nickel	Nitrogen
Tp316	Minimum					0	16.0	2.00	10.0
	maximum	2.0	0.03	0.75	0.08	0.045	18.0	3.00	14.0	0.10

 

ASTM A269 Gr Tp316 Tube Mechanical Properties

Grade	Tensile Str (Mpa) Min	Elongation Minimum	Yield Str (Mpa) Min	Hardness
				Rockwell B (Hr B) Max	Brinell (Hb) Max
Tp316	515	40	205	95	217

 

ASME SA269 Tp 316 Seamless Tubing Physical Properties

Grade	Density (Kg/m3)	Elastic Modulus (Gpa)	Thermal Conductivity (W/m.k)		Mean Co-eff Of Thermal Expansion (μm/m/°c)			Specific Heat 0-100°c (J/kg.k)	Elec Resistivity (Nω.m)
			AT 100°C	AT 500°C	0-100°C	0-315°C	0-538°C
316	8000	193	16.3	21.5	15.9	16.2	17.5	500	74

 

SA269 Grade TP316 Welded Tube Corrosion Resistance

Corrosion Resistance	Temperature Range (°C)
Pitting and Crevice Corrosion Resistance	-196°C - 60°C
Corrosion Resistance	-196°C - 870°C

 

Is ASTM A269 TP316 Schedule 40 or Schedule 80 Stronger?

SCH 80 SA 269 TP 316 Seamless Tubes have greater wall thickness than SCH 40 ones. This means that sch 80 is able to withstand higher pressure ratings and has greater strength. Thus, sch 40 tubes are ideal for low pressure applications. Whereas, sch 80 tubes are used for industrial and chemical applications.

 

SA 269 Gr 316 Heat Exchanger Tubes Test Method

Flattening Test

One flattening test shall be made on specimens from each end of one finished tube, not the one used for the flaring test, from each lot.

Flaring Test

One flaring test shall be made on specimens from each end of one finished tube, not the one used for the flattening test, from each lot.

Hydrostatic or Nondestructive Testing

Each pipe shall be subjected to the nondestructive electric test or the hydrostatic test, the type of test to be used shall be at the option of the manufacturer, unless otherwise specified in the purchase order.

 

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