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304/316L Stainless Steel Pipes Water Tube for Water Supply

Material: SUS304, SUS316L

Standard: GB, JIS, EN, ASTM A312

OD: 15 - 300mm

Craft: Welded

Delivery Time: 7 - 25days

Payment: TT

Price: Please contact US

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Product Information

Product Catalogue

Guangzhou Mayer Co., Ltd. is a Hong Kong-listed manufacturer (Stock Code: 01116.HK) with a 55,000㎡-production base and RMB 200 million in registered capital.
We specialize in thin-walled stainless steel water supply pipes and press-fit fittings, serving high-end hotels, hospitals, schools, residential developments, and municipal water systems.

Product Specifications

Specification (Standard: EN10312:2002)
Outer Diameter	OD tolerance	Thickness	Thickness tolerance
15	±0.10	1	±0.10
18	±0.10	1	±0.10
22	±0.11	1.2	±0.10
28	±0.14	1.2	±0.10
35	±0.18	1.5	±0.10
42	±0.21	1.5	±0.10
54	±0.27	1.5	±0.10
64	±0.32	2	±0.15
76.1	±0.38	2	±0.15
88.9	±0.44	2	±0.15
108	±0.54	2	±0.15
133	±1.00	3	±0.30
159	±1.0	3	±0.30
219	1.5	3	±0.30

Specification (Standard: GB/T 19228.2-2011)
Outer Diameter (mm)		OD tolerance	Thickness (mm)		Thickness tolerance
series I	series II		S1	S2	±10%S
12.7	--	±0.10	0.8	0.6
16	15.9	±0.10	1	0.8
18
20	22.2	±0.11	1.2	1
22
25.4	28.6	±0.14	1.2	1
28
32	34	±0.17	1.5	1.2
35
40	42.7	±0.21	1.5	1.2
42
50.8	48.6	0.26	1.5	1.2
54
60.3	--	±0.32	1.5	1.5
63.5
76.1	--	±0.38	2	1.5
88.9		±0.44	2	--
101.6		±0.54	2	--
108
133		±0.66	2.5		±0.3
159		±0.80	2.5
			3
219.1		±1.10	3
273.1		±1.37	4
323.9		±1.62	4

Download Technical Datasheet (PDF)

Application

Stainless Steel Water Pipe | Safe, Durable & Corrosion-Resistant Plumbing Solution for Building Water Supply
Clean Water Deserves Clean Piping – Engineered for Potable Water Systems with 50+ Year Service Life

“In building water supply, what keeps you up at night? Leakage risks? Water contamination? Or unexpected maintenance costs that eat into your margins?”

Contractors and building owners frequently encounter these hidden headaches:

Pipe corrosion leads to rust-colored water, clogged fixtures, and premature system failure.

Leaking joints cause water damage to walls, ceilings, and foundations — costly to repair.

Uncertain material safety raises concerns about heavy metal leaching into drinking water.

Your reputation is built on the systems that perform silently behind the walls. Compromised piping is not an option.

Our Solution

Stainless Steel – The Global Standard for Premium Water Supply Systems - Choose Guangzhou MAYER

Unlike traditional materials that degrade over time, our stainless steel water pipes are engineered for lifetime reliability and water purity.

1. Preserve Water Purity from Source to Tap

✔304 / 316L food-grade stainless steel → no heavy metal leaching, fully compliant with potable water standards.

✔Smooth inner surface resists scaling and biofilm formation → maintains consistent flow rate and reduces bacterial growth.

2. Eliminate Leakage with Superior Jointing Systems

✔Compatible with press fittings, flanges, and sanitary welding – choose the method that suits your project.

✔100% hydrostatic testing on every pipe → zero leakage guaranteed before installation.

3. Withstand the Test of Time and Environment

✔Exceptional resistance to corrosion, even in high-humidity, underground, or coastal conditions.

✔Withstands high temperature and pressure fluctuations – ideal for hot water circulation and high-rise building risers.

Certificate

Quality You Can Verify. Safety You Can Trust.

Customer Case

	For Sky Apartments Auckland, New Zealand, MAYER stainless steel pipes are mainly used for cold water supply.
	The Phase II project of the Infection Control Centre at North Lantau Hospital, Hong Kong, was launched on October 17, 2024. It includes a 5-storey building, adding 144 wards, 4 negative-pressure operating rooms, 4 X-ray rooms, etc. MAYER stainless steel pipes and fittings are adopted for the water supply pipeline system. The project is expected to be completed in 2027.
	For the renovation of the plant room at Grey Hospital, New Zealand, MAYER stainless steel pipes are supplied for hot and cold water services.