ASTM A269/A269M-15a(2019)

Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service

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1.1 ,This specification covers grades of nominal-wall-thickness, stainless steel tubing for general corrosion-resisting and low- or high-temperature service, as designated in Table 1.

Grade	Composition, %
Grade	TP XM-29	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .
UNS Designation^A	S24000	S31254	S31266	S31725	S31726	S31727	S32053	S30600^A	S32654	S34565	S35045	N08367	N08925	N08926	N08904
Carbon	0.08	0.020	0.030 max	0.035	0.035	0.030	0.030	0.018	0.020	0.030	0.06–, 0.10	0.030	0.020	0.020	0.020
Manganese	11.5–, 14.5	1.00	2.00–,4.00	2.00	2.00	1.00	1.00	2.0	2.0–, 4.0	5.0–, 7.0	1.50	2.00	1.00	2.00	2.00
Phosphorus	0.060	0.030	0.035	0.045	0.045	0.030	0.030	0.020	0.030	0.030	0.045	0.040	0.045	0.030	0.040
Sulfur.	0.030	0.015	0.020	0.030	0.030	0.030	0.010	0.020	0.005	0.010	0.015	0.030	0.030	0.010	0.030
Silicon	1.00	0.80	1.00	1.00	1.00	1.00	1.00	3.7–,4.3	0.50	1.00	1.00	1.00	0.50	0.50	1.00
Nickel	2.3–, 3.7	17.5–, 18.5	21.0–,24.0	13.5–, 17.5	14.5–, 17.5	14.5–, 16.5	24.0–, 26.0	14.0–, 15.5	21.0–, 23.0	16.0–, 18.0	32.0–, 37.0	23.5–, 25.5	24.0–,26.0	24.0–, 26.0	23.0–, 28.0
Chromium	17.0–, 19.0	19.5–, 20.5	23.0–,25.0	18.0–, 20.0	17.0–, 20.0	17.5–, 19.0	22.0–, 24.0	17.0–, 18.5	24.0–, 25.0	23.0–, 25.0	25.0–, 29.0	20.0–, 22.0	19.0–,21.0	19.0–, 21.0	19.0–, 23.0
Molybdenum	...	6.0–, 6.5	5.2–,6.2	4.0–, 5.0	4.0–, 5.0	3.8–, 4.5	5.0–, 6.0	0.20 max	7.0–, 8.0	4.0–, 5.0	,	6.0–, 7.0	6.0–,7.0	6.0–, 7.0	4.0–, 5.0
Titanium	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	0.15–, 0.60	. . .	. . .	. . .	. . .
Columbium	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	. . .	0.10 max	. . .	. . .	. . .	. . .	. . .
Tantalum	. . .	. . .	. . .	. . .	. . .	,	. . .	,	. . .	. . .	. . .	. . .	. . .	. . .	. . .
Nitrogen^F	0.20–, 0.40	0.18–, 0.25	0.35–,0.60	0.20 max	0.10–, 0.20	0.15–, 0.21	0.17–, 0.22	,	0.45–, 0.55	0.40–, 0.60	. . .	0.18–, 0.25	0.10–,0.20	0.15–, 0.25	0.10 max
Vanadium	. . .	,	,	. . .	. . .	,	. . .	,	. . .	,	. . .	. . .	. . .	. . .	. . .
,Copper	. . .	0.50–, 1.00	1.00–,2.50	. . .	. . .	2.8–, 4.0	. . .	0.50 max	0.30–, 0.60	. . .	0.75	0.75 max	0.80–,1.50	0.50–, 1.50	1.00–, 2.00
,Others	. . .	. . .	W 1.50–,2.50	. . .	. . .	. . .	. . .	. . .	. . .	. . .	Al 0.15–, 0.60	. . .	. . .	. . .	. . .

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ASTM A269/A269M-15a(2019)

ASTM A269/A269M-15a(2019)

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