Description

304 Stainless Steel Tube is the stainless steel pipe grade produced according to US ASTM standards. It corresponds to the Chinese grade 0Cr19Ni9 (formerly 0Cr18Ni9) and the German standard DIN2462. Due to its excellent corrosion resistance and good mechanical properties, 304 Stainless Steel Tube is widely used in food processing equipment, chemical containers, nuclear power industry facilities, and machinery manufacturing.

Classification of 304 Stainless Steel Tube:

1. Classification by Application:
304 Stainless Steel Industrial Tube: Primarily used for conveying fluids such as oil, natural gas, and water.
304 Stainless Steel Sanitary Tube: Suitable for the food and pharmaceutical industries and must meet hygienic standards.
304 Stainless Steel Decorative Tube: Features a smooth surface and is used for architectural decoration or furniture production.
2. Classification by Shape:
304 Stainless Steel Round Tube: The most common type of steel pipe, widely used in various industrial applications.
304 Stainless Steel Square Tube: Features a larger section modulus, can withstand greater bending moments, and is commonly used in building structures.

304 Stainless Steel Special-Shaped Tubes: Includes oval tubes, flat tubes, and other shapes, custom-made to meet specific needs.
3. Classification by Production Method:
304 Stainless Steel Seamless Tubes (cold-drawn, extruded, and cold-rolled)
304 Stainless Steel Welded Tubes (straight seam welded pipe, spiral welded steel tube, gas shielded welded, arc welded, and electric resistance welded steel pipes)

Features of 304 Stainless Steel Tube:

1. Corrosion Resistance: 304 Stainless Steel Tube is primarily composed of chromium and nickel, which significantly enhance its corrosion resistance. 304 Stainless Steel Tube maintains excellent corrosion resistance in various acidic, alkaline, saline, and oxidizing environments, making it widely used in the petroleum, chemical, food, and pharmaceutical industries.

2. Excellent Mechanical Properties: 304 Stainless Steel Tube exhibits excellent tensile strength and ductility, allowing it to withstand significant pressure and bending stresses. Furthermore, its excellent welding properties make the tubes easier to install and use.

3. Environmental protection and hygiene: Since 304 Stainless Steel Tube does not require coating treatment during the production process and does not produce harmful substances, it is environmentally friendly and will not pollute the transported medium.

Standards and Classifications

Steel Grade	GB China	JIS Japan		ASTM America	Din German
Steel Grade	Steel Grade	Steel Grade	Steel Standard	Steel Grade	Steel Grade	Material	Steel Standard
Stainless Sour Resistant Steel Pipe/Tube	1Gr13	SUS410 TP	G3463	ASTM A268 TP410	X10Cr13	1.4006	DIN17440
	2Cr13			ASTM (SISI 420)	X20Cr13	1.4021	DIN17440
	1Cr17	SUS430 TB	G3463	ASTM A268 TP430/TP429	X8Cr17	1.4016	DIN17440
	0Cr18Ni9	SUS304 TP/TB	G3459 G3463	ASTM A312、A376、TP304 A213、A249、A268 TP304	X5CrNi189	1.4301	DIN17440
	1Cr18Ni9				X5CrNi189	1.4301	DIN17440
	0Cr18Ni10Ti 1Cr18Ni9Ti	SUS321 TP/TB	G3459 G3463	ASTM A312、A376 TP321 A213、A249、A266 TP321	X10CrNiTi189	1.4541	DIN17440
	0Cr18Ni13Mo2Ti	SUS316 TP/TB	G3459 G3463	ASTM A312、A376 TP316 A213、A249、A266 TP316
	0Cr18Ni13Mo3Ti	SUS317 TP/TB	G3459 G3463	ASTM A312、A376 TP316 A213、A249、A268 TP317
	00Cr18Ni10	SUS304L TP/TB	G3459 G3463	ASTM A312、A376 TP34L A213、A249、A268 TP304L	X2CrNi189	1.4306	DIN17440
	00Cr17Ni13Mo2	SUS316L TP/TB	G3459 G3463	ASTM A312、A376 TP316L A213、A249、A268 TP316L	X2CrNi810	1.4404	DIN17440
	00Cr17Ni13Mo3	SUS317L TP/TB	G3459 G3463	A312、A376、 TP317L A213、A249、A268 TP317L

STAINLESS STEEL CHEMICAL COMPONENT
Grade	C	Si	Mn	P	S	Ni	Cr	Mo
201	≤0.15	≤0.75	5.5-7.5	≤0.06	≤0.03	3.5-5.5	16.0-18.0	–
202	≤0.15	≤1.0	7.5-10.0	≤0.06	≤0.03	4.-6.0	17.0-19.0	–
301	≤0.15	≤1.0	≤2.0	≤0.045	≤0.03	6.0-8.0	16.0-18.0	–
302	≤0.15	≤1.0	≤2.0	≤0.035	≤0.03	8.0-10.0	17.0-19.0	–
304	≤0.08	≤1.0	≤2.0	≤0.045	≤0.03	8.0-10.5	18.0-20.0
304L	≤0.03	≤1.0	≤2.0	≤0.035	≤0.03	9.0-13.0	18.0-20.0
309S	≤0.08	≤1.0	≤2.0	≤0.045	≤0.03	12.0-15.0	22.0-24.0
310S	≤0.08	≤1.5	≤2.0	≤0.035	≤0.03	19.0-22.0	24.0-26.0
316	≤0.08	≤1.0	≤2.0	≤0.045	≤0.03	10.0-14.0	16.0-18.0	2.0-3.0
316L	≤0.03	≤1.0	≤2.0	≤0.045	≤0.03	12.0-15.0	16.0-18.0	2.0-3.0
321	≤0.08	≤1.0	≤2.0	≤0.035	≤0.03	9.0-13.0	17.0-19.0	–
904L	≤2.0	≤0.045	≤1.0	≤0.035	–	23.0-28.0	19.0-23.0	4.0-5.0
2205	≤0.03	≤1.0	≤2.0	≤0.030	≤0.02	4.5-6.5	22.0-23.0	3.0-3.5
2507	≤0.03	≤0.80	≤1.2	≤0.035	≤0.02	6.0-8.0	24.0-26.0	3.0-5.0
2520	≤0.08	≤1.5	≤2.0	≤0.045	≤0.03	0.19-0.22	0.24-0.26	–
410	≤0.15	≤1.0	≤1.0	≤0.035	≤0.03	–	11.5-13.5	–
430	0.12	≤0.75	≤1.0	≤0.040	≤0.03	≤0.60	16.0-18.0	–