Wholesale AISI 310 stainless steel seamless steel coil tubing suppliers Suppliers, Quotes

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Wholesale AISI 310 stainless steel seamless steel coil tubing suppliers Suppliers, Quotes

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Product Description

ASTM A269 Alloy 310s Stainless Steel Coil Tubing

High-alloy austenitic stainless steel designed for exceptional high-temperature performance and corrosion resistance.

Coil Tube Tube Coil Coil Tubing Coil Pipe Pipe Coil

Introduction

Stainless steels are known as high-alloy steels. They are classified into ferritic, austenitic, and martensitic steels based on their crystalline structure.

Grade 310S stainless steel is superior to 304 or 309 stainless steel in most environments because it has high nickel and chromium content. It delivers outstanding corrosion resistance and strength in temperatures up to 1149°C (2100°F).

Coiled Tubing Specifications

Standards: ASTM A269 / A249 Standard
Available Grades: TP304, TP316L, 304, 316, 310S, 2205, 825, 625
Outer Diameter: 6.52mm - 19.05mm (Alternative range: 6.52mm - 20mm)
Wall Thickness: 0.2mm - 2mm (Alternative range: 0.40mm - 1.5mm)
Tolerance: OD ± 0.1mm, Wall Thickness: ±10%, Length: -0/+6mm
Length: 300m - 3500m per coil (or custom lengths)
State Options: Soft / Half Hard / Soft Bright Annealing
Packaging: Iron pallet, wooden pallet, poly bag

Trade Names Available

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

Chemical Composition & Properties

Grade 310S Stainless Steel Chemical Composition (%)

Element	Content (%)
Iron, Fe	54
Chromium, Cr	24-26
Nickel, Ni	19-22
Manganese, Mn	2
Silicon, Si	1.50
Carbon, C	0.080
Phosphorous, P	0.045
Sulfur, S	0.030

Physical Properties (Grade 310S)

Properties	Metric	Imperial
Density	8 g/cm³	0.289 lb/in³
Melting point	1455°C	2650°F

Mechanical Properties (Grade 310S)

Properties	Metric	Imperial
Tensile strength	515 MPa	74695 psi
Yield strength	205 MPa	29733 psi
Elastic modulus	190-210 GPa	27557-30458 ksi
Poisson's ratio	0.27-0.30	0.27-0.30
Elongation	40%	40%
Reduction of area	50%	50%
Hardness	95	95

Thermal Properties

Properties	Metric	Imperial
Thermal conductivity (for stainless 310)	14.2 W/mK	98.5 BTU in/hr ft².°F

Other Designations

AMS 5521	ASTM A240	ASTM A479	DIN 1.4845
AMS 5572	ASTM A249	ASTM A511	QQ S763
AMS 5577	ASTM A276	ASTM A554	ASME SA240
AMS 5651	ASTM A312	ASTM A580	ASME SA479
ASTM A167	ASTM A314	ASTM A813	SAE 30310S
ASTM A213	ASTM A473	ASTM A814	SAE J405 (30310S)

Common Sizes & Reference Chart

ITEM	Grade	Size (MM / Inch)	Pressure (Mpa)	Length (M)
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

Direct quality control throughout the entire manufacturing process.
Exceptional single continuous length capabilities exceeding 3500M per Coil.
Over ten years of dedicated experience exporting high-performance stainless steel tube products globally.

Typical Applications

Food & Beverage Processing Industry
Petrochemical Plants
CNG Piping Systems
Boilers & Heat Exchangers
Desalination & Geothermal Power Plants
Precision Instrumentation Systems
Mechanical & Structural Projects
Oil and Gas Equipment and Upstream Piping Work

Other Grades Available

Stainless Steel 304

Stainless Steel 304L

Stainless Steel 304H

Stainless Steel 316

Stainless Steel 316L

Stainless Steel 316H

Stainless Steel 317L

Stainless Steel 321

Stainless Steel 347

Stainless Steel 410

Stainless Steel 904L

Stainless Steel 310S

Stainless Steel 310

Stainless Steel 310H

Stainless Steel 316Ti

Stainless Steel 321H

Stainless Steel 347H

Seamless coiled tubing is the optimal choice for critical applications. By eliminating the weld seam, it removes the risk of impurities often associated with welded options, offering:

Custom continuous lengths tailored to specifications.
Improved system safety, integrity, and long-term reliability.
Superior resistance against localized corrosion.
Fewer joints and fittings, significantly lowering leak risks and connection failures.
Reduced installation costs due to faster, less labor-intensive routing.

With a ten-year history of producing high-quality stainless steel coils, our production lines manufacture continuous welded pipes using industry-leading processes. Implementing advanced bright annealing technologies, online softening treatments are successfully performed on stainless steel pipes. Additionally, we conduct rigorous quality testing—including compression, flaring, bending, 100% hardness, stretch, and air tightness tests—ensuring highly reliable quality and competitive pricing for global export markets.

Frequently Asked Questions (FAQ)

What are the primary performance advantages of Grade 310S stainless steel coiled tubing?

Grade 310S features high nickel and chromium content, giving it superior corrosion resistance and high mechanical strength at extreme temperatures up to 1149°C (2100°F) compared to standard grades like 304 or 309.

What standards are your stainless steel coiled tubes manufactured to?

Our coiled tubes are manufactured in compliance with international standards, primarily ASTM A269 and ASTM A249 specifications.

What sizing limits and tolerances do you offer for coiled tubing?

We supply outer diameters ranging from 6.52mm to 20mm, wall thicknesses from 0.2mm to 2mm, and continuous lengths from 300 to 3500 meters per coil. The general tolerances are OD ±0.1mm and wall thickness ±10%.

Why is seamless coiled tubing preferred over welded options in critical systems?

Seamless coiled tubing eliminates the risk of weld-zone impurities, offers higher pressure ratings, superior corrosion resistance, and dramatically reduces the number of inline fittings. This minimizes potential leak points and installation labor costs.

What quality testing processes do the coiled tubes undergo?

All tubing undergoes a complete series of rigorous tests including flaring, compression, bending, 100% hardness tests, tensile testing, and high-pressure air tightness testing to guarantee zero leaks and consistent material hardness.