China ASTM A269 316 stainless steel exchanger pipe Factory, Quotes

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China ASTM A269 316 stainless steel exchanger pipe Factory, Quotes

Stianless Steel Pipe /TUBE: 1. : Grade :201 202 304 304l 316 316l 2. Standard:ASTM DIN JIS AISI GB 3.Surface: 2B BA NO.4 Mirror 320# 380# 400#600# 800# 4.Length :6M 11.5 M 12M or As Per your requirment. 5.OD :Round Tube 9.52-219MM Retangle :10*10-150-150 6.Inner packing :Plastic Bag 7.Outer Packing: Carton /Woven/Wooden Packaging 8.Od:+/- 0.2mm, Thickness: +/- 0.02mm

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Product Description

ASTM A269 316 Stainless Steel Polishing Tube

316L stainless steel pipes for heat exchangers.

Size: OD13.5 * 0.7 Thickness | Length: 6555mm

Product Specifications

Product: 316L Stainless Steel Pipes for Heat Exchangers

Material: ASTM A312/A790 316L (Ultra-low carbon, high corrosion resistance)

Applications: Oil & gas, chemical processing, desalination plants, and power generation.

Compliant with international standards (ASTM, ASME, DIN).

Key Features

Excellent resistance to pitting/crevice corrosion in chloride environments.
Ideal for heat exchangers, condensers, and high-temperature applications.
Smooth surface finish to minimize fouling and enhance thermal efficiency.
Available in customized sizes, schedules (SCH 10/40/80), and lengths.

About Grade 316L (UNS S31603, EN 1.4404)

Grade 316L is a molybdenum-bearing austenitic stainless steel, providing superior resistance to general corrosion and pitting/crevice corrosion compared to conventional chromium-nickel austenitic stainless steels such as Grade 304. The low carbon chemistry of 316L, combined with nitrogen addition, enables the material to meet the robust mechanical properties of Grade 316.

It is heavily utilized in process streams containing chlorides or halides. The addition of molybdenum improves general corrosion and chloride pitting resistance, while offering higher creep, stress-to-rupture, and tensile strength at elevated temperatures. In addition, Grade 316L Cr-Ni-Mo alloys offer excellent fabricability and formability.

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Key Properties & Benefits

Atmospheric and marine corrosion resistance (exceeds 304)
Excellent heat resistance and oxidation prevention
Easily welded and processed by standard shop practices
Superb hot/cold working capacities and formability
High cryogenic strength and toughness
Easy cleaning and premium aesthetic appearance

Chemical Composition & Physical Properties (316L)

Item	C%	Si%	Mn%	P%	S%	Ni%	Cr%	Mo%	N%	Others
Min	---	---	---	---	---	10.00	16.00	2.00	---	---
Max	0.030	0.750	2.00	0.045	0.030	14.00	18.00	3.00	0.100	---

Item	Tensile Test				Hardness Test
Item	0.2% Y.S.	1% Y.S.	T.S.	EL (%)	HRB	HV
Min	170	---	485	40	---	---
Max	MPa	---	MPa	---	95	---

Industrial Applications

Food preparation equipment

Chemical processing (inks, rayons, etc.)

Laboratory benches & equipment

Rubber, plastics, pulp & paper machinery

Pollution control systems

Boat fittings, valves, and pump trims

Heat exchangers & condensers

Pharmaceuticals & medical implants

Evaporators and storage tanks

Architectural & marine applications

Product Specifications & Standard Configurations

Item: Stainless steel polishing pipe

Type: Welded or seamless

Standard: ASTM A554, JIS, DIN

Grade: 201, 202, 304, 304L, 316, 316L, 409, 430, etc.

Size Range (Round): OD 8mm - 219mm

Square Tube Sizes: 10x10mm - 150x150mm

Rectangle Tube Sizes: 10x20mm - 120x180mm

Thickness: 0.2mm - 4.0mm

Surface Finish: 180G, 320G, 400G, 500G, 600G, Satin, hairline, 2B, BA, mirror, 8K

Length Options: 5.8m, 6m, 11.85m, 12m, or custom

Square Steel Tube (mm)	Rectangular Steel Tube (mm)	Round Steel Tube (mm)
10×10×0.6~3.0	10×20×0.6~3.0	6x0.6~1.0
15×15×0.6~3.0	20×30×0.6~3.0	12x0.6~1.5
20×20×0.6~3.0	20×40×0.6~3.0	13x0.6~1.5
25×25×0.6~3.0	25×50×0.6~3.5	16x0.6~2.0
30×30×0.6~3.5	30×50×0.6~3.5	19x0.6~3.0
40×40×0.6~3.5	40×60×0.6~3.5	20x0.6~3.0
50×50×0.6~3.5	40×80×0.6~3.5	22x0.6~3.0
60×60×0.6~3.5	60×80×1.0~6.0	25x0.6~3.0
70×70×0.6~3.5	50×100×1.0~6.0	27x0.6~3.0
75×75×0.6~3.5	60×120×1.0~6.0	32x0.6~3.0
80×80×1.0~6.0	80×120×2.0~8.0	40x0.6~3.5
100×100×2.0~8.0	80×160×2.0~8.0	38x0.6~3.0
120×120×2.0~8.0	100×150×2.0~8.0	48x0.6~3.5
150×150×2.0~8.0	100×200×2.0~8.0	60x0.6~3.5
200×200×4.0~16.0	150×250×4.0~12.0	76x0.6~3.5
250×250×4.0~16.0	200×300×4.0~16.0	89x1.0~6.0
300×300×4.0~16.0	300×400×4.0~16.0	104x1.0~6.0
400×400×4.0~16.0	300×500×4.0~16.0	114x1.0~6.0

Quality Testing & Quality Control

Our quality control protocols for control lines in the oil and gas sector ensure high durability and absolute compliance. Tests conducted on finished products include:

Non-destructive testing (NDT)
Hydrostatic testing
Precision surface finish controls
Dimensional accuracy measurements
Flare and coning physical testing
Complete mechanical and chemical property validations

Applications for Capillary Tubes

1Medical device industry
2Temperature-guided industrial control, sensors & thermometers
3Pens care industry core tubes
4Micro-tube antennas & precision signal receivers
5Electronic and electric product small-diameter capillaries
6Precision jewelry needle punches
7Watchmaking and precision engineering displays
8Automotive and telecommunication antenna bars
9Laser engraving system components
10High-end fishing gear and accessories
11Dietary and food grade capillary tubing
12Mobile device and computer styluses
13Heating pipe industry & oil exploration tubing
14Printer and silent box needles
15Double-melt window-coupled components
16High-precision small-diameter industrial tubes
17Dispensing needles for adhesive and fluid controls
18Acoustic equipment, microphone, and headphone components

Frequently Asked Questions (FAQ)

What makes Grade 316L different from conventional stainless steel like Grade 304?

Grade 316L contains molybdenum, which drastically improves resistance to general corrosion and chloride pitting. It features an ultra-low carbon chemistry which, when combined with nitrogen, achieves the mechanical performance of Grade 316 while maintaining excellent weldability.

What standards do your stainless steel polishing tubes comply with?

Our stainless steel polishing tubes conform to multiple international quality standards, including ASTM A269, ASTM A312, ASTM A790, ASTM A554, JIS, and DIN specifications.

What sizing options are available for these stainless steel pipes?

We supply round pipes ranging from OD 8mm to 219mm, square pipes from 10x10mm to 150x150mm, and rectangular options from 10x20mm to 120x180mm. Wall thicknesses range from 0.2mm to 4.0mm, and lengths can be customized up to 12 meters.

What testing is performed to ensure the quality of control lines and heat exchanger tubes?

We perform rigid testing on finished products including non-destructive testing (NDT), hydrostatic tests, surface finish inspections, dimensional accuracy tests, flare/coning tests, and complete mechanical/chemical properties analysis.

Which industries benefit most from using 316L stainless steel pipes?

Due to its superior pitting resistance and mechanical integrity, 316L is widely used in chemical processing, oil & gas lines, desalination plants, power plants, pharmaceutical applications, medical implants, food preparation, and marine applications.

What surface finish configurations can you provide for polishing pipes?

We offer various finishes including 180G, 320G, 400G, 500G, 600G, Satin, hairline, 2B, BA, mirror, and 8K, to optimize tubes for both performance and aesthetic design.