Stainless Steel Seamless Tube ASTM A269

Model NO.: ASTM A269 Cross-Section Shape: Round Trademark: VASTAR Standard: ASTM Connection Type: Seamless Origin: China Standard: ASTM A269/ASME SA269
Material: 304, 304L, 316, 316L, 321, 347
Size: OD (6-159mm) X WT (1-15mm)
Application: Boiler, Heat Exchanger, etc.

Inspection items:
1, Chemical Composition
2, Size
3, Flaring test(seamless)
4, flanging test(welded)
5, Bending test
6, Hydrostatic Test or Eddy current test or Ultrasonic test
7, Surface quality
8, Hardness

Negotiated items:
1, Intercrystalline corrosion test
2, Stabilization heat treatment
3, BKS tube
4, Air pressure test under water.
 

Material	ASTM A269  Chemical Composition % Max
	C	Mn	P	S	Si	Cr	Ni	Mo	N B	Nb	Ti
TP304	0.08	2.00	0.045	0.030	1.00	18.0-20.0	8.0-11.0	^	^	^ .	^
TP304L	0.035	2.00	0.045	0.030	1.00	18.0-20.0	8.0-12.0	^	^	^	^
TP316	0.08	2.00	0.045	0.030	1.00	16.0-18.0	10.0-14.0	2.00-3.00	^	^	^
TP316L	0.035 D	2.00	0.045	0.030	1.00	16.0-18.0	10.0-15.0	2.00-3.00	^	^	^
TP321	0.08	2.00	0.045	0.030	1.00	17.0-19.0	9.0-12.0	^	^	^	5C -0.70
TP347	0.08	2.00	0.045	0.030	1.00	17.0-19.0	9.0-12.0			10C -1.10	^

 

Material	Heat treatment	Temperure F (C) Min.	Hardness
			Brinell	Rockwell
TP304	Solution	1900 (1040)	192HBW/200HV	90HRB
TP304L	Solution	1900 (1040)	192HBW/200HV	90HRB
TP316	Solution	1900(1040)	192HBW/200HV	90HRB
TP316L	Solution	1900(1040)	192HBW/200HV	90HRB
TP321	Solution	1900(1040) F	192HBW/200HV	90HRB
TP347	Solution	1900(1040)	192HBW/200HV	90HRB

 

OD, inch	OD Tolerance inch(mm)	WT Tolerance %	Length Tolernace inch(mm)
			+	-
≤ 1 /2	± 0.005 ( 0.13 )	± 15	1 /8 ( 3.2 )	0
> 1 /2~1 1 /2	± 0.005(0.13)	± 10	1 /8(3.2)	0
> 1 1 /2~< 3 1 /2	± 0.010(0.25)	± 10	3 /16(4.8)	0
> 3 1 /2~< 5 1 /2	± 0.015(0.38)	± 10	3 /16(4.8)	0
> 5 1 /2~< 8	± 0.030(0.76)	± 10	3 /16(4.8)	0
8~< 12	± 0.040(1.01)	± 10	3 /16(4.8)	0
12~< 14	± 0.050(1.26)	± 10	3 /16(4.8)	0

 

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