Austenitic stainless steel seamless tube & pipe

Austenitic stainless steel has stable austenitic structure in normal temperature, it possesses very high corrosion resistance, good cold workability and good toughness plastic, weldability and non-magnetic.It has been widely used in chemical,oil refining, boiler, food and other industries of the heat exchanger condenser, evaporator and fluid delivery, etc.

Compared to common austenitic stainless steel, super austenitic stainless steel has higher cleanliness uniformity, mechanical properties;more fine structure;better surface quality;more excellent resistance to harsh medium local corrosion resistance and better process manufacturing performance, etc. It can be used in harsher working condition, stronger corrosive industrial environment, which can not be satisfied by ordinary austenitic stainless steel:petroleum chemical industry of butyl acetate acetic acid, terephthalic acid, polyvinyl chloride(PVC), and other media environment; inorganic chemical industry of sulfuric acid, ferric sulfate, soda, phosphate and other media enviroment; the crude oil refining of crude oil desalting, reduced pressure distillation environment; the ultra supercritical boiler, superheater, reheater, final reheater, etc.

Grade

AISI	UNS	EN/DIN	JIS
TP304	S30400	X5CrNi18-10 1.4301	SUS304
TP304L	S30403	X2CrNi19-11 1.4306	SUS304L
TP304H	S30409	X6CrNi18-10 1.4948	SUS304H
TP310S	S31008	X12CrNi23-2 1.4845	SUS310S
TP316	S31600	X5CrNiMo17-12-2 1.4401	SUS316
TP316L	S31603	X2CrNiMo17-13-3 1.4436	SUS316L
TP316H	S31609	X6CrNiMoTi17-12-2 1.4571	-
TP316Ti	S31635	X6CrNiTi18-10 1.4541	SUS316Ti
TP321	S32100	X6CrNiTi18-10 1.4541	SUS321
TP321H	S32109	X6CrNiNb18-10 1.4550	SUS321H
TP347	S34700	X7CrNiNb18-10 1.4912	SUS347
TP347H	S34709	-	SUS347H
TP347HFG	S34710	X15CrNiSi20-12 1.4828	-

Standard

Chinese standard:GB/T14975,GB/T14976, GB/T13296, GB/T5310 etc.

American standard: ASME SA312, ASME SA 213, ASTM A269, ASTM A376, ASTM A511, ASME SB677, ISO 15156-3, ASTM A959 etc.

European standard: DIN 17456, DIN 17458, EN 10216-5-04 etc.

Jampanese standard: JIS G3463, JIS G3459 etc.

Chemical Composition (%)

Unless otherwise specified in the table, numercal value presents maximum

Type	Grade	C	Si	Mn	P	S	Cr	Ni	Mo	N	Fe	Cu	Other
Austenitic Stainless Steel Tube	TP304	0.08	1	2	0.045	0.03	18-20	8-11	-	-	Bal.	-	-
	TP304h	0.04-0.1	1	2	0.045	0.03	18-20	8-11	-	-	Bal.	-	-
	TP304l	0.035	1	2	0.045	0.03	18-20	8-13	-	-	Bal.	-	-
	TP316L	0.035	1	2	0.045	0.03	16-18	10-14	2-3	-	Bal.	-	-
	TP316L	0.08	1	2	0.045	0.03	16-18	10-14	2-3	-	Bal.	-	-
	TP316H	0.04-0.1	1	2	0.045	0.03	16-18	11-14	2-3	-	Bal.	-	-
	TP316Ti	0.08	0.75	2	0.045	0.03	16-18	10-12	2-3	0.1	Bal.	-	Ti:5(C+N)~0.7
	TP317	0.08	1	2	0.045	0.03	18-20	11-14	3-4	-	Bal.	-	-
	TP317L	0.035	1	2	0.045	0.03	18-20	11-15	3-4	-	Bal.	-	-
	TP321	0.08	1	2	0.045	0.03	17-19	9-12	-	0.1	Bal.	-	Ti:5C~0.7
	TP321H	0.04-0.1	1	2	0.045	0.03	17-19	9-12	-	-	Bal.	-	Ti:4*C~0.7
	TP347	0.08	1	2	0.045	0.03	17-19	9-13	-	-	Bal.	-	Nb:10*C~1
	TP347H	0.04-0.1	1	2	0.045	0.03	17-19	9-13	-	-	Bal.	-	Nb:8*C~1
	TP347HFG	0.06-0.1	1	2	0.045	0.03	17-19	9-13	-	-	Bal.	-	Nb:8*C~1.1
	TP310S	0.08	1	2	0.045	0.03	24-26	19-22	-	-	Bal.	-	-
	TP310H	0.04-0.1	1	2	0.045	0.03	24-26	19-22	-	-	Bal.	-	-
Super Austenitic Stainless Steel Tube	S30432	0.07-0.13	0.3	0.5	0.045	0.03	17-19	7.5-10.5	-	0.05-0.12	-	-	Nb:0.2-0.6
	S31042 (TP310HCbN)	0.04-0.1	1	2	0.045	0.03	24-26	19-22	-	0.15-0.35	-	-	Nb:0.2-0.6
	S31254(254Smo)	0.02	0.8	1	0.03	0.01	19.5-20.5	17.5-18.5	6-6.5	0.18-0.22	Bal.	0.5-1	-
	N08367(AL6XN)	0.03	0.8	2	0.04	0.04	20-22	23.5-25.5	6-7	0.18-0.25	Bal.	0.75	-
	N08904(904L)	0.02	1	2	0.045	0.035	19-23	23-28	4-5	0.14-0.2	Bal.	1-2	-

Mechanical Property

Type	Grade	Tensile Strength (min)	Yield Strength (min)	Elongation (min)
Type	Grade	Rm Mpa	Rp0.2 Mpa	A%
Austenitic Stainless Steel Tube	TP304	515	205	35
	TP304h	515	205	35
	TP304l	485	17	35
	TP316L	485	170	35
	TP316L	515	205	35
	TP316H	515	205	35
	TP316Ti	515	205	35
	TP317	515	205	35
	TP317L	515	205	35
	TP321	515	205	35
	TP321H	515	205	35
	TP347	515	205	35
	TP347H	515	205	35
	TP347HFG	550	205	35
	TP310S	515	205	35
	TP310H	515	205	35
Super Austenitic Stainless Steel Tube	S30432	550	205	35
	S31042 (TP310HCbN)	655	295	30
	S31254(254Smo)	650	300	35
	N08367(AL6XN)	690	365	30
	N08904(904L)	490	220	35

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