China ASTM A269 316L Stainless Steel Seamless Coiled Tube Factory, Factories

1 / 3

China ASTM A269 316L Stainless Steel Seamless Coiled Tube Factory, Factories

Products: seamless stainless steel coil tube

Grade: 304 304L 316 316L alloy 625 alloy 825 2205 2507 ect Length :300-3500M/coil Process Method : Cold Drawn / Cold Rolled Surface Finish: Bright Annealed / Pickling / 180# 240# 320# 400# 600# Manual Polished/Mechanical Polished. Standard: ASTM (ASME) SA / A312 /A213 /A269 and DIN, GB, JIS. Size: O.D 3/16″-1 1/2″(6mm-38mm), W.T 0.028″-0.118″(0.7mm-3mm). Tolerance: Outer Diameter: ±0.08mm（0.00315″）, Wall Thickness: ±10% Marking on pipes: As customer’s requirement. Certification: ISO9001:2000, GB/T19001-2000. Delivery Time: In Time As Per Agreement. E.G.40 Days. Packing: Wrapped with plastic bags and protected with wooden case or iron case. Weight of each wooden cases no more than 1000 kgs. Way of transportation: FOB, CIF, BY SEA, BY AIR. Applications:These products are widely used in petrol, chemical, pharmacy, foodstuff, machinery, spaceflight, war industry, hardware, boiler gas, hot-water heating parts, shipping, power and other industries We can offer stainless steel pipes according to customers’ requirements.

Send Inquiry

Product Description

stainless steel coil tube stainless steel tube coil stainless steel coil tubing stainless steel coil pipe stainless steel coil tube suppliers stainless steel coil tube manufacturers stainless steel pipe coil

ASTM A269 316L Stainless Steel Coiled Tube Pipe Specifications

Standards: ASTM A269/A249 standard
Grade: TP304, TP316L, 304, 316, 310S, 2205, 825, 625
Trade Name: SS304 Coiled Tubes, SS316 Coiled Tubes, Duplex Coiled Tubes, Monel 400 Coiled Tubes, Hastelloy Coiled Tubes, Inconel Coiled Tubes, 904L Coiled Tubes, Seamless Coiled Tubes, Welded Coiled Tubing
Outer Diameter: 6.52 - 19.05 mm
Thickness: 0.2 - 2 mm
Tolerance: OD ± 0.1 mm, wall thickness: ± 10%, length: ± 5 mm
Length: 300 - 3500 M/coil
Packaging: Iron pallet, wooden pallet, poly bag
Application: Refrigeration equipment, evaporator, gas liquid delivery, condenser, beverage machine
State: Soft / half hard / soft bright annealing
Specifications: Outer diameter 6.52 mm - 20 mm, wall thickness: 0.40 mm - 1.5 mm
Tolerance Range: Diameter: + 0.1 mm, wall thickness: + 10%, length: -0/+6 mm
Length Range: 800 - 3500 M or according to customer requirements
Product Advantages: Surface polishing and fine finish, uniform wall thickness, tolerance precision, etc.
Common Size: Customizable based on specific requests

Composition Ranges & Mechanical Properties of 316L Stainless Steel

Table 1. Chemical Composition Ranges for 316L Stainless Steel Coiled Tubing / Coiled Tubes

Grade	Range	C	Mn	Si	P	S	Cr	Mo	Ni	N
316L	Min	-	-	-	-	-	16.0	2.00	10.0	-
316L	Max	0.03	2.0	0.75	0.045	0.03	18.0	3.00	14.0	0.10

Table 2. Mechanical Properties of 316L Stainless Steel Coiled Tubing / Coiled Tubes

Grade	Tensile Str (MPa) min	Yield Str 0.2% Proof (MPa) min	Elong (% in 50mm) min	Hardness
Grade	Tensile Str (MPa) min	Yield Str 0.2% Proof (MPa) min	Elong (% in 50mm) min	Rockwell B (HR B) max	Brinell (HB) max
316L	485	170	40	95	217

Physical Properties

Table 3. Typical Physical Properties for 316 Grade Stainless Steels.

Grade	Density (kg/m³)	Elastic Modulus (GPa)	Mean Co-eff of Thermal Expansion (µm/m/°C)			Thermal Conductivity (W/m.K)		Specific Heat 0-100°C (J/kg.K)	Elec Resistivity (nΩ.m)
Grade	Density (kg/m³)	Elastic Modulus (GPa)	0-100°C	0-315°C	0-538°C	At 100°C	At 500°C	Specific Heat 0-100°C (J/kg.K)	Elec Resistivity (nΩ.m)
316/L/H	8000	193	15.9	16.2	17.5	16.3	21.5	500	740

Grade Specification Comparison

Table 4. Grade Specifications for 316L Stainless Steels.

Grade	UNS No	Old British		Euronorm		Swedish SS	Japanese JIS
Grade	UNS No	BS	En	No	Name	Swedish SS	Japanese JIS
316L	S31603	316S11	-	1.4404	X2CrNiMo17-12-2	2348	SUS 316L

Stainless Steel Coiled Tubes/Coil Tubing Common Size Range

Table 5. Common Size Chart of Stainless Steel Coil Tube

ITEM	Grade	Size (MM / Inch)	Pressure (Mpa)	Length (M/coil)
1	316L, 304L, 304, Alloy 625, 825, 2205, 2507	1/8″ × 0.025″	3200	500-2000
2	316L, 304L, 304, Alloy 625, 825, 2205, 2507	1/8″ × 0.035″	3200	500-2000
3	316L, 304L, 304, Alloy 625, 825, 2205, 2507	1/4″ × 0.035″	2000	500-2000
4	316L, 304L, 304, Alloy 625, 825, 2205, 2507	1/4″ × 0.049″	2000	500-2000
5	316L, 304L, 304, Alloy 625, 825, 2205, 2507	3/8″ × 0.035″	1500	500-2000
6	316L, 304L, 304, Alloy 625, 825, 2205, 2507	3/8″ × 0.049″	1500	500-2000
7	316L, 304L, 304, Alloy 625, 825, 2205, 2507	1/2″ × 0.049″	1000	500-2000
8	316L, 304L, 304, Alloy 625, 825, 2205, 2507	1/2″ × 0.065″	1000	500-2000
9	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ3mm × 0.7mm	3200	500-2000
10	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ3mm × 0.9mm	3200	500-2000
11	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ4mm × 0.9mm	3000	500-2000
12	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ4mm × 1.1mm	3000	500-2000
13	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ6mm × 0.9mm	2000	500-2000
14	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ6mm × 1.1mm	2000	500-2000
15	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ8mm × 1mm	1800	500-2000
16	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ8mm × 1.2mm	1800	500-2000
17	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ10mm × 1mm	1500	500-2000
18	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ10mm × 1.2mm	1500	500-2000
19	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ10mm × 2mm	500	500-2000
20	316L, 304L, 304, Alloy 625, 825, 2205, 2507	φ12mm × 1.5mm	500	500-2000

Our Advantages

We are a dedicated stainless steel coiled tube/pipe manufacturer.
We completely control the quality of the pipes within our own facilities.
The continuous length of the pipes can exceed 3500M per coil.

Why Choose Seamless Coiled Tubing?

Seamless coiled tubing is the number one choice in most critical applications because it eliminates the risk of impurities often associated with welded coiled tubing.

Available in custom continuous lengths
Improves overall system safety and operational reliability
Provides greater resistance to localized corrosion
Reduces the number of fittings required, minimizing potential leak points and long-term connection failures
Lowers installation costs by reducing alignment time, fittings, and welding efforts

We possess more than ten years of experience in exporting high-quality stainless steel tube products worldwide.

Description: Our production of stainless steel coils spans a ten-year history. Operating two complete production lines, we produce continuous welded pipes utilizing leading-edge manufacturing technology. Through the implementation of world first-class online bright annealing technology, we perform continuous inline softening treatments for stainless steel pipes. In addition, we execute robust quality control testing, including compression, flaring, bending tests, 100% hardness tests, tensile strength testing, and air tightness inspections. Our pricing is highly competitive and quality is thoroughly dependable, with 80% of our coil products exported to global markets.

Introduction to Grade 316 and 316L

Grade 316 is the standard molybdenum-bearing grade, second in importance to grade 304 among austenitic stainless steels. The chemical addition of molybdenum provides Grade 316 with superior overall corrosion resistant properties compared to Grade 304, showing particularly higher resistance to pitting and crevice corrosion in harsh chloride environments.

Grade 316L is the low-carbon version of Grade 316, making it highly immune to sensitization (grain boundary carbide precipitation). Consequently, it is extensively used in heavy gauge welded components (typically over 6mm). There is commonly no significant price difference between 316 and 316L stainless steel grades.

The stable austenitic microstructure also provides these grades with exceptional toughness, maintaining excellent properties even down to cryogenic temperature ranges.

Compared to standard chromium-nickel austenitic stainless steels, 316L stainless steel offers higher creep resistance, stress-to-rupture limits, and superior tensile strength at elevated operating temperatures.

Key Properties

These properties are specified for flat-rolled products (plate, sheet, and coil) in ASTM A240/A240M. Similar but not necessarily identical properties are specified for other product configurations, such as pipe, tubing, and bar, in their respective individual specifications.

Frequently Asked Questions (FAQ)

What are the main differences between Grade 316 and Grade 316L?

Grade 316L is the low-carbon version of 316. The lower carbon content prevents harmful carbide precipitation during welding, making 316L immune to sensitization and ideal for use in heavy-gauge welded components without requiring post-weld annealing.

Why is seamless coiled tubing preferred over welded coiled tubing?

Seamless coiled tubing does not feature a longitudinal weld seam, eliminating the risk of impurities and weld-line defects. It offers higher pressure capacity, improved system safety, better corrosion resistance, and reduces leak potentials by minimizing structural joints.

What size ranges are typically available for stainless steel coiled tubing?

Common outer diameters range from 6.52 mm to 20 mm (or 1/8" to 1/2" imperial sizes), with wall thicknesses ranging between 0.2 mm and 2.0 mm. Custom continuous lengths can be supplied up to 3500 meters per coil.

What industries utilize stainless steel coiled tubing?

Stainless steel coiled tubes are widely used in critical sectors including food and beverage processing, petrochemical transmission, CNG piping networks, geothermal systems, industrial condensers, oil and gas instrument lines, and refrigeration systems.

What testing procedures do these coiled tubes undergo to ensure quality?

The coiled tubes undergo comprehensive tests such as compression testing, flaring and bending tests, 100% hardness evaluations, tensile strength testing, and strict air tightness inspections to confirm material integrity under high-pressure conditions.