3 Inch ASTM AISI 304 316 404 444 Round Tube Seamless Stainless Steel Pipe

• Type: Stainless Steel Pipes
• Standard: ASTM, AISI, GB, JIS, DIN, EN
• Grade: 300 Series
• Certification: ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS
• Shape: Round
• Technique: Seamless/Welded
• Surface Treatment: Bright, Pickling, Polishing, Annealing, etc.
• Place of Origin: Zhejiang China
• Alloy or Not: Is Alloy
• Delivery Time: 8-14 Days
• Model Number: 304, 304L, 201, 316, 316L, 321, 317L, 309S, 310S
• Application: Construction, Decorative, etc.
• Welding Line Type: ERW
• Processing Service: Bending, Welding, Punching, Decoiling, Moulding, C
• Item: 304 Inox Steel Tubing Steel Pipe
• Keyword: Stainless Steel Pipe
• Length: 5.8m, 6m, 8m, 11.8m or as Required.
• Used: Production Equipment and Lines for Food, Beverages
• Transport Package: According to Customer Requirements
• Specification: OD 6mm-5000mm
• Trademark: FLK
• Origin: Wenzhou, Zhejiang, China
• HS Code: 7304419000
• Production Capacity: 5000000pieces/Year

Product Description

Product Description

A 3-inch seamless stainless steel pipe can be made from various grades of stainless steel, such as ASTM AISI 304, 316, 404, and 444. Each of these grades has unique properties and applications. Here's an overview of these stainless steel grades and their characteristics:

ASTM AISI 304

Composition:

• Chromium (Cr): 18-20%
• Nickel (Ni): 8-10.5%
• Carbon (C): ≤ 0.08%
• Manganese (Mn): ≤ 2%
• Silicon (Si): ≤ 0.75%
• Phosphorus (P): ≤ 0.045%
• Sulfur (S): ≤ 0.03%

Properties:

• Excellent corrosion resistance
• Good formability and weldability
• Widely used in kitchen equipment, tanks, and piping

Applications:

• Food processing
• Chemical containers
• Architectural paneling

ASTM AISI 316

Composition:

• Chromium (Cr): 16-18%
• Nickel (Ni): 10-14%
• Molybdenum (Mo): 2-3%
• Carbon (C): ≤ 0.08%
• Manganese (Mn): ≤ 2%
• Silicon (Si): ≤ 0.75%
• Phosphorus (P): ≤ 0.045%
• Sulfur (S): ≤ 0.03%

Properties:

• Enhanced corrosion resistance, particularly against chlorides and industrial solvents
• Higher strength at elevated temperatures
• Good welding and forming characteristics

Applications:

• Marine environments
• Chemical processing equipment
• Medical instruments

ASTM AISI 404

Composition:

• Chromium (Cr): 11-14%
• Nickel (Ni): 1-3%
• Carbon (C): ≤ 0.15%
• Manganese (Mn): ≤ 1.5%
• Silicon (Si): ≤ 1%
• Phosphorus (P): ≤ 0.04%
• Sulfur (S): ≤ 0.03%

Properties:

• Lower corrosion resistance compared to 304 and 316
• Higher strength and hardness
• Generally used in less demanding environments

Applications:

• Automotive exhausts
• Structural components
• Heat exchangers

ASTM AISI 444

Composition:

• Chromium (Cr): 17-20%
• Nickel (Ni): ≤ 1%
• Molybdenum (Mo): 1.75-2.5%
• Carbon (C): ≤ 0.025%
• Manganese (Mn): ≤ 1%
• Silicon (Si): ≤ 1%
• Phosphorus (P): ≤ 0.04%
• Sulfur (S): ≤ 0.03%
• Titanium (Ti): ≤ 0.75%
• Niobium (Nb): ≤ 0.45%

Properties:

• Superior corrosion resistance, especially in chloride environments
• Good formability and weldability
• High resistance to stress corrosion cracking

Applications:

• Hot water tanks
• Solar water heaters
• Automotive components

General Characteristics of Seamless Stainless Steel Pipes:

• Durability: Seamless pipes are known for their strength and ability to withstand high pressures without leaking.
• Smooth Finish: The absence of a seam ensures a smooth, uniform finish.
• Versatility: Suitable for various industrial, commercial, and domestic applications.

Applications of 3-Inch Seamless Stainless Steel Pipes:

• Industrial Piping Systems: Chemical, petrochemical, and food processing industries.
• Construction: Structural applications requiring high strength and durability.
• Automotive and Aerospace: Components needing precise tolerances and high performance.
• Plumbing: Water and gas pipelines, especially in corrosive environments.

In summary, the choice of stainless steel grade for a 3-inch seamless pipe depends on the specific requirements of the application, such as corrosion resistance, strength, and environmental conditions. Grades 304 and 316 are more common for general use, while grades 404 and 444 are chosen for specific properties like higher strength or superior resistance to certain corrosive

Product Parameters

1.	Item	3 inch ASTM AISI 304 316 404 444 round tube seamless stainless steel pipe
2.	Standard	ASTM A213, A312, ASTM A269,ASTM A778, ASTM A789, DIN 17456,DIN 17457, DIN 17459, JIS G3459, JIS G3463, GOS T9941, EN 10216, BS3605, GB13296,etc.
3.	Material	201,202,301,304,304L,304N,XM21,304LN,309S,310S,316,316Ti, 316L,316N,316LN,317,317L,321,329,etc.
4.	Specifications	Wall thickness	1.0-150mm(SCH10S-XXS)
		Outside diameter	3.0-2500mm(1/8"-100")
		Length	6m,5.8m,8m,11.8m,12m or as required.
5.	Surface	Pickling, annealing, polishing, bright, sand blast, hair line, etc.
6.	Price Term	Ex-work, FOB, CFR, CIF, or as required.
7.	Payment Term	T/T, L/C, Western Union.
8.	Export to	Singapore, Canada, Indonesia, Korea, USA, UK, Thailand, Saudi Arabia, Vietnam, Iran, India, Peru, Ukraine ,Brazil, South Africa, etc.
9.	MOQ	500kg
10.	Delivery Time	Prompt delivery or according to order's quantity.
11.	Package	Export standard package: bundled wooden box, suit for all kinds of transport, or be required.
12.	Application	widely used in petroleum, chemical, medical, food, light industry, machinery, instrument and other industrial pipeline and mechanical structure parts, etc.
13.	Contact	If you have any question, please feel free to contact me.

Chemical Composition

 

Stee Grade	Chemical Composition %
	C	Cr	Ni	Mn	P	S	Mo	Si	Cu	N	Other
201	≤0.15	16.00-18.00	3.50-5.50	5.50-7.50	≤0.060	≤0.030		≤1		≤0.25
202	≤0.15	17.00-19.00	4.00-6.00	7.50-10.00	≤0.060	≤0.030		≤1		≤0.25
301	≤0.15	16.00-18.00	6.00-8.00	≤2.0	≤0.065	≤0.030		≤1.00
302	≤0.15	17.00-19.00	8.00-10.00	≤2.00	≤0.035	≤0.030		≤1.00
304	≤0.08	18.00-20.00	8.00-11.00	≤2.00	≤0.045	≤0.030		≤1.00
304L	≤0.035	18.00-20.00	8.00-12.00	≤2	≤0.045	≤0.030		≤1.00
305	≤0.12	17.00-19.00	11.00-13.00	≤2	≤0.045	≤0.03	Om	≤1.00
309S	≤0.08	22.00-24.00	12.00-15.00	≤2	≤0.045	≤0.030		≤1
310S	≤0.08	24.00-26.00	19.00-22.00	≤2	≤0.045	≤0.030		≤1.00
316	≤0.08	16.00-18.00	10.00-14.00	≤2	≤0.045	≤0.030	2.00-3.00	≤1.00
316L	≤0.035	16.00-18.00	10.00-14.00	≤2.00	≤45	≤0.03	2.00-3.0	≤1.00
317	≤0.08	18.00-20.00	11.00-14.00	2.00	≤0.045	≤0.030	3.00-4.00	≤1
317L	≤0.035	18.00-20.00	11.00-15.00	≤2.00	≤0.045	≤0.030	3.00-4.00	≤1.00
321	≤0.08	17.00-19.00	9.00-12.00	≤2	≤0.045	≤0.030		≤1.00			Ti5(C%-0.02 ~0.08
347	≤0.08	17.00-19.00	9.00-13.00	≤2.00	≤0.045	≤0.030		≤1.00			Nb≥10*C%

 

 

Product & Application

   

 

 

   

 

Application of welded steel pipe,seamless steel pipe, cold hot rolled round pipe, and stainless steel pipe: construction material, buidlings, bridges, building decoration, chemical industry, car mainfold, water supply, petroleum pipeline, water pipe,boiler pipe, automobile pipe,hydraulic, building and equipment, pipeline