Shandong Rigang Metal Products Co., Ltd.

Stainless steel is also aesthetically appealing, extremely hygienic, easy to maintain, highly durable and offers a wide variety of aspects. As a result, stainless steel can be found in many everyday objects. It also plays a prominent role in an array of industries, including energy, transportation, building, research, medicine, food and logistics.

Technical Data Sheet of Stainless Steel Pipe & Tube
Product Name	AISI 904L (UNS N08904, DIN 1.4539) Stainless Steel Seamless Pipes & Tubes
Equivalent Materials	AISI 904L, UNS N08904, DIN 1.4539, AISI 904L, SUS 890L, NAS 255, 00Cr20Ni25Mo4.5Cu, X1NiCrMoCu25-20-5
Type	Seamless
Shape	Square / Rectangular / Round
Standard	GB,AISI,ASTM,DIN,EN,JISASTM A240/ASME SA-240、ASTM A276、ASTM A182/ASME SA-182、ASTM A312/ASMES A312ASTM B625/ASME B625、ASTM B673/ASME B673
Available Grades	Stainless steel 301 / 302 / 303 / 304 / 304L / 310S / 316L / 316Ti / 316LN / 317L / 904L / 2205 / 2507 / 321 / 32760 / 253MA / 254SMo / 410 / 420 / 430 / Custom465 / XM-19 / S31803 / S32750 / S32205 / F50 / F60 / F55 / F60 / F61 / F65.Nitronic 30 / Nitronic 32 / Nitronic 33 / Nitronic 40 / Nitronic 50 / Nitronic 60 etc.
	Monel 400 / Monel K-500
	Inconel 600 / Inconel 601 / Inconel 625 / Inconel 617 / Inconel 690 / Inconel 718 / Inconel X-750 / Inconel 713C / Inconel 713LC
	Incoloy A-286 / Incoloy 800 / Incoloy 800H / Incoloy 800HT
	Incoloy 825 / Incoloy 901 / Incoloy 925 / Incoloy 926
	Nimonic 75 / Nimonic 80A / Nimonic 90 / Nimonic 105 / Nimonic C263 / L-605
	Hastelloy B / Hastelloy B-2 / Hastelloy B-3 / Hastelloy C / Hastelloy C-276 / Hastelloy C-22
	Hastelloy C-4 / Hastelloy C-2000 / Hastelloy G-35 / Hastelloy X / Hastelloy N
	PH stainless steel 15-5PH / 17-4PH / 17-7PH
Out diameter	Seamless Pipe 6MM - 1174MM or customized
Thickness	Seamless Pipe 1mm - 80mm or customized
Max Length	Seamless Pipe 12000mm or customized
Finish	2B, Pickling, Polished, Brushed, Sandblast, BA, EP
Packing	waterproof polybag, wooden box, end cap, wooden crame/pallet
Inspection	TUV,SGS,BV,ABS,LR and so on
Application	Chemical, Pharmaceutical & Bio-Medical, Petrochemical & Refinery, Environmental, Food Processing, Aviation, Chemical Fertilizer, Sewage Disposal, Desalination, Waste Incineration etc.
Processing Service	Machining : Turning / Milling / Planing / Drilling / Boring / Grinding / Gear Cutting / CNC Machining
	Deformation processing : Bending / Cutting / Rolling / Stamping
	Welded
	Forged
Delivery Time	7-40 days
Trade Term	FOB CIF CFR CIP DAP DDP EXW
Payment	T/T, L/C,D/A,D/P, Western Union,MoneyGram,According to customer requirements payments for offline orders.
Transportation	By air, by sea, by train, by truck
Sample	Free
Warranty	Trade assurance after sales service

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Overview of AISI 904L Stainless Steel Tube:

904L super austenitic stainless steel is a low-carbon, high-nickel, molybdenum austenitic stainless and acid-resistant steel, which is a proprietary material imported from France H·S. It has good activation-passivation transformation ability, excellent corrosion resistance, good corrosion resistance in non-oxidizing acids such as sulfuric acid, acetic acid, formic acid, and phosphoric acid, and good corrosion resistance in neutral chloride-containing media It has good pitting corrosion resistance and good resistance to crevice corrosion and stress corrosion. It is suitable for sulfuric acid of various concentrations below 70°C, and has good corrosion resistance in acetic acid at any concentration and at any temperature and the mixed acid of formic acid and acetic acid under normal pressure.

Super austenitic stainless steel 904L (00Cr20Ni25Mo4.5Cu; UNS: N08904; EN: 1.4539) is a high-alloy austenitic stainless steel with low carbon content. It has good corrosion resistance in dilute sulfuric acid and is specially designed for corrosion conditions. Designed for harsh environments. It has a high chromium content and sufficient nickel content. The addition of copper makes it highly resistant to acid, especially to chloride crevice corrosion and stress corrosion cracking. It is not easy to appear corrosion spots and cracks, and is resistant to spots. Corrosion ability is slightly better than other steel grades, has good workability and weldability, and can be used in pressure vessels.

Chemical Composition of ASTM A312 UNS N08904 Seamless Pipe:

alloy	%	nickel	chromium	molybdenum	copper	iron	carbon	manganese	silicon	phosphorus	sulfur
904L	min	23	19	4	1	margin
	max	28	twenty three	5	2		0.02	2	1	0.045	0.035

Mechanical Properties of Stainless Steel 904L Seamless Pipes:

Alloy state	tensile strengthRm N/mm2	Yield StrengthRP0.2N/mm2	ElongationA5%
904L	490	216	35

Application of ASTM A312 904L Stainless Steel Seamless Pipe:

-Petroleum and petrochemical equipment, such as reactors in petrochemical equipment, etc.

-Sulfuric acid storage and transportation equipment, such as heat exchangers, etc.

-Power plant flue gas desulfurization device, the main use parts are: the tower body of the absorption tower, flue, gate plate, internal parts, spray system, etc.

-Scrubber and fan in the organic acid treatment system.

-Sea water treatment equipment, sea water heat exchanger, paper industry equipment, sulfuric acid, nitric acid equipment, acid making, pharmaceutical industry and other chemical equipment, pressure vessels, food equipment.

-Pharmaceutical factories: centrifuges, reactors, etc.

-Plant food: soy sauce cans, cooking wine, salt cans, equipment and dressings.

-904L is a matched steel grade for the strong corrosive medium of dilute sulfuric acid.

For more information about 904/904L Stainless Steel Pipe, please call us or send an Email to info@sdrgmetal.com, you can also submit inquiry online.

Commonly Used Grades

304 Stainless Steel and 316 Stainless Steel

Part of the austenitic family of stainless steel sheet grades, 304 stainless steel, and 316 stainless steel are among the most widely used.

304 stainless steel sheet is most notably present in industrial applications and kitchen equipment. 304 stainless steel sheet is a heat-resistant grade, offering good corrosion resistance to many chemical corrodents, as well as industrial atmospheres. With good formability, 304 stainless steel sheet can be readily welded by all common methods

An extra low carbon variation, 304L stainless steel sheet, avoids harmful carbide precipitation due to welding. This variation offers the same corrosion resistance as 304 stainless steel sheet, but with slightly lower mechanical properties.

316 stainless steel sheet is widely used for pumps, valves, textile and chemical equipment, pulp & paper and marine applications.

This grade is more resistant to corrosion and pitting than 304 stainless steel sheet and offers higher strength at elevated temperatures. In addition, 316L stainless steel sheet is an extra low carbon variation that helps avoid carbide precipitation due to welding.

304 vs 316 Stainless Steel: What is the difference?

Now to the question of 304 vs. 316; while both are good for corrosion resistance, strength, welding, and heat resistance, 316 gets the slight edge in all these categories due to variation in alloying elements.

Chemical Properties of Frequently-used Stainless Steel Material Grade

Chemical Properties of Frequently-used Stainless Steel Material Grade
UNS	ASTM	EN	JIS	C%	Mn%	P%	S%	Si%	Cr%	Ni%	Mo%
S20100	201	1.4372	SUS201	≤0.15	5.5-7.5	≤0.06	≤0.03	≤1.00	16.0-18.0	3.5-5.5	-
S20200	202	1.4373	SUS202	≤0.15	7.5-10.0	≤0.06	≤0.03	≤1.00	17.0-19.0	4.0-6.0	-
S30100	301	1.4319	SUS301	≤0.15	≤2.00	≤0.045	≤0.03	≤1.00	16.0-18.0	6.0-8.0	-
S30400	304	1.4301	SUS304	≤0.08	≤2.00	≤0.045	≤0.03	≤0.75	18.0-20.0	8.0-10.5	-
S30403	304L	1.4306	SUS304L	≤0.03	≤2.00	≤0.045	≤0.03	≤0.75	18.0-20.0	8.0-12.0	-
S30908	309S	1.4833	SUS309S	≤0.08	≤2.00	≤0.045	≤0.03	≤0.75	22.0-24.0	12.0-15.0	-
S31008	310S	1.4845	SUS310S	≤0.08	≤2.00	≤0.045	≤0.03	≤1.50	24.0-26.0	19.0-22.0	-
S31600	316	1.4401	SUS316	≤0.08	≤2.00	≤0.045	≤0.03	≤0.75	16.0-18.0	10.0-14.0	2.0-3.0
S31603	316L	1.4404	SUS316L	≤0.03	≤2.00	≤0.045	≤0.03	≤0.75	16.0-18.0	10.0-14.0	2.0-3.0
S31703	317L	1.4438	SUS317L	≤0.03	≤2.00	≤0.045	≤0.03	≤0.75	18.0-20.0	11.0-15.0	3.0-4.0
S32100	321	1.4541	SUS321	≤0.08	≤2.00	≤0.045	≤0.03	≤0.75	17.0-19.0	9.0-12.0	-
S34700	347	1.4550	SUS347	≤0.08	≤2.00	≤0.045	≤0.03	≤0.75	17.0-19.0	9.0-13.0	-
S40500	405	1.4002	SUS405	≤0.08	≤1.00	≤0.04	≤0.03	≤1.00	11.5-14.5	≤0.60	-
S40900	409	1.4512	SUS409	≤0.08	≤1.00	≤0.045	≤0.03	≤1.00	10.5-11.75	≤0.50	-
S43000	430	1.4016	SUS430	≤0.12	≤1.00	≤0.040	≤0.03	≤0.75	16.0-18.0	≤0.60	-
S43400	434	1.4113	SUS434	≤0.12	≤1.00	≤0.040	≤0.03	≤1.00	16.0-18.0	-	-
S44400	444	1.4521	SUS444L	≤0.025	≤1.00	≤0.045	≤0.03	≤1.00	17.5-19.5	≤1.00	-
S40300	403	-	SUS403	≤0.15	5.5-7.5	≤0.04	≤0.03	≤0.50	11.5-13.0	≤0.60	-
S410000	410	1.40006	SUS410	≤0.15	≤1.00	≤0.035	≤0.03	≤1.00	11.5-13.5	≤0.60	≤1.00
S42000	420	1.4021	SUS420J1	0.16~0.25	≤1.00	≤0.04	≤0.03	≤1.00	12.0-14.0	≤0.75	≤1.00
S440A	440A	1.4028	SUS440A	0.60~0.75	≤1.00	≤0.04	≤0.03	≤1.00	16.0-18.0	-	≤0.75
S32750	SAD2507	1.4410		≤0.03	≤1.2	≤0.035	≤0.02	≤0.80	24.0-26.0	6.0-8.0	3.0-5.0
S31803	SAF2205	1.4462		≤0.03	≤2.0	≤0.03	≤0.02	≤1.00	21.0-23.0	4.0-6.5	2.5-3.5
N08904	904L	1.4539		≤0.0.3	≤2.0	≤0.035	≤0.03	≤1.00	18.0-20.0	23.0-25.0	3.0-4.0

Characteristics & Applications

All stainless steels are iron-based alloys that contain at least 10.5% chromium. This helps with stainless steel grades being corrosion resistant; an important factor due in large part to the varying types of environments in which the end products are used.

Beyond chromium, the rest of the makeup of each stainless steel grade is defined by various alloying elements, which control the microstructure of the alloy.

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