ASTM Small Diameter Capillary 304/304L Stainless Steel Tube

• 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

 

ASTM small diameter capillary tubes made from 304/304L stainless steel are used in applications that require precision, high corrosion resistance, and durability. Here's an overview of their characteristics and applications:

Composition and Properties of 304/304L Stainless Steel:

304 and 304L stainless steels are austenitic chromium-nickel stainless steels known for their excellent corrosion resistance and good mechanical properties.

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%

304L Composition:

• Chromium (Cr): 18-20%
• Nickel (Ni): 8-12%
• Carbon (C): ≤ 0.03%
• Manganese (Mn): ≤ 2%
• Silicon (Si): ≤ 0.75%
• Phosphorus (P): ≤ 0.045%
• Sulfur (S): ≤ 0.03%

Key Differences:

• 304L has a lower carbon content than 304, which minimizes carbide precipitation and improves its resistance to intergranular corrosion after welding.

Mechanical Properties:

• Density: 7.93 g/cm³
• Tensile Strength: 515-690 MPa (75-100 ksi)
• Yield Strength: 205 MPa (30 ksi)
• Elongation: 40% (min)
• Hardness: Typically around 70-80 HRB

Characteristics of Capillary Tubes:

• Small Diameter: Typically ranges from less than 1 mm to a few millimeters in diameter.
• Precision: Manufactured to tight tolerances, ensuring uniformity in dimensions and excellent surface finish.
• Corrosion Resistance: Excellent resistance to a wide range of corrosive environments.

Applications:

304/304L stainless steel capillary tubes are used in a variety of precision applications across different industries, including:

Medical and Pharmaceutical:

• Medical Instruments: Used in needles, catheters, and surgical instruments due to their precision and biocompatibility.
• Pharmaceutical Production: Tubes for fluid transfer and sampling.

Industrial Applications:

• Instrumentation: Used in pressure and temperature measurement devices.
• Chromatography: Tubes for gas and liquid chromatography equipment.
• Aerospace: Precision tubing for fuel lines and hydraulic systems.

Food and Beverage Industry:

• Quality Control: Used in sampling and testing equipment.
• Processing Equipment: Tubes for fluid transfer and monitoring.

Chemical Processing:

• Flow Measurement: Used in flow meters and sensors for accurate measurements.
• Control Systems: Tubes in control and monitoring equipment.

Manufacturing Process:

• Cold Drawing: This process ensures the tubes have high precision and a smooth surface finish.
• Annealing: Heat treatment to relieve stresses and improve ductility and corrosion resistance.
• Polishing: To achieve the desired surface finish and cleanliness, especially important for medical and food applications.

Standards and Specifications:

• ASTM A269/A213: These specifications cover seamless and welded austenitic stainless steel tubing for general service, including high-temperature and corrosive applications.

Summary:

ASTM small diameter capillary 304/304L stainless steel tubes are essential components in many precision applications due to their high corrosion resistance, excellent mechanical properties, and precision manufacturing. Their use spans various industries, including medical, pharmaceutical, industrial instrumentation, food and beverage, and chemical processing, where precision and reliability are critical.

Product Parameters

1.	Item	ASTM Small Diameter Capillary 304/304L Stainless Steel Tube
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