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EN 10312 Stainless Steel Potable(Drinking) Water Tube

  • EN 10312 / DVGW W270 / WRAS
  • NSF/ANSI 61 / ASTM A270 / ASTM A312
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EN10312 Welded Tube Dimensions And Tolerances - Series 1
Outside DiameterOutside Diameter ToleranceWall Thickness
(mm)Maximum(mm)Minimum(mm)(mm)
66,045,940,6
88,047,940,6
1010,049,940,6
1212,0411,940,6
1515,0414,940,6
1818,0417,940,7
2222,0521,950,7
2828,0527,950,8
3535,0734,971,0
4242,0741,971,1
5454,0753,841,2
66,766,7566,081,2
76,176,3075,541,5
(103)103,8102,21,5
108108,3107,21,5
(128)129,0127,01,5
133133,5132,21,5
(153)154,5151,51,5
159159,5157,92,0
The Tolerance On Wall Thickness Shall Be +/– 10 %
Series 2
Outside Diameter, mmTolerance, mmWall Thickness, mmTolerance,
12,0+/-0,101,0+/-0,10
15,0+/-0,101,0+/-0,10
18,0+/-0,101,0+/-0,10
22,0+/-0,111,2+/-0,10
28,0+/-0,141,2+/-0,10
35,0+/-0,181,5+/-0,10
42,0+/-0,211,5+/-0,10
54,0+/-0,271,5+/-0,10
64,0+/-0,322,0+/-0,15
76,1+/-0,382,0+/-0,15
88,9+/-0,442,0+/-0,15
108,0+/-0,542,0+/-0,15
133,0+/-1,003,0+/-0,30
159,0+/-1,003,0+/-0,30
219,01,503,0+/-0,30
267,0+/-1,503,0+/-0,30

Professional Stainless Steel Tube & Pipe
Manufacturer & Supplier

  • Quickly delivery
  • Stable welded seam quality
  • Third party inspection
  • Mass inventory
  • Professional inspection team
  • Flanges and fittings supply together

Yaolong is equipped with state-of-the-art machinery to produce high-quality stainless steel pipes. Our advanced facilities include laser cutting machines for precise and clean cuts, internal polishing machines to ensure a smooth, flawless finish, and bright annealing technology for superior corrosion resistance and a polished appearance. Additionally, our internal levelling machines guarantee uniform pipe dimensions and enhanced structural integrity. With these cutting-edge technologies, Yaolong delivers precision-engineered stainless steel pipes that meet the highest industry standards for durability and performance.

We are a trusted manufacturer of high-quality stainless steel tubes, dedicated to delivering superior products that meet the highest industry standards. To ensure reliability and performance, we employ a comprehensive range of advanced testing methods.

By rigorously applying these tests, Yaolong guarantees stainless steel tubes that excel in safety, durability, and performance for diverse industrial applications.

Air Under Water Pressure Test
Hydrostatic Test
Magnetic-particle Inspection
Pneumatic Test
Ultrasonic Testing
Spectro Analysis
X-ray Test

ISO 9001:2015
(ISO) 9001:2015 certification is a globally recognized quality management standard. It ensures that a company follows systematic processes to consistently deliver products and services that meet customer and regulatory requirements. For Yaolong, this certification demonstrates our commitment to quality control, continuous improvement, and customer satisfaction in stainless steel pipe manufacturing.

PED 2014/68/EU (Pressure Equipment Directive)
The PED 2014/68/EU is a European Union regulation that sets safety standards for the design, manufacturing, and testing of pressure equipment. Compliance ensures that Yaolong’s stainless steel pipes meet strict safety and performance requirements for use in high-pressure applications, such as oil & gas, chemical processing, and power plants.

AD 2000-W0
The AD 2000-W0 is a German pressure vessel standard that provides technical guidelines for materials, design, and manufacturing of pressure equipment. Certification under this standard confirms that Yaolong’s pipes adhere to high safety and engineering specifications, making them suitable for demanding industrial environments.

ISO 9001:2015
ISO 9001:2015
PED 2014/68/EU
PED 2014/68/EU
AD 2000-W0
AD 2000-W0

With years of experience in stainless steel pipe manufacturing, Yaolong ensures not only superior product quality but also professional packaging and container loading services. We use customized packaging solutions, including wooden crates, steel straps, and protective coatings, to prevent damage during transit. Our team meticulously plans container loading to maximize space efficiency while ensuring secure stacking and proper weight distribution.

By adhering to international shipping standards, Yaolong guarantees that your stainless steel pipes arrive safely, undamaged, and on time—every time. Trust our expertise for seamless logistics and worry-free global deliveries.

Why choose us?

Professional Stainless Steel Tube & Pipe Manufacturer & Supplier

NANTONG YAOLONG METAL MANUFACTURING CO., LTD is a modern integrated enterprise specialized in manufacturing stainless steel industrial welded tubes and pipes. Currently, Yaolong factory has 4 production bases in Foshan, Guangdong and Nantong,Jiangsu, its annual production capacity reaches 15,000 tons. Nantong Yaolong is honored with NEW TECHNOLOGY ENTERPRISE.

Yaolong company is attractive by talents of professional and technical personnel, it has imported high technology equipment from USA, Germany, France and Japan, producing industrial pipes Φ16- Φ2000mm, thickness in 0.5-18mm. Yaolong company is applying standard of GB, ASTM,  DIN, JIS and ISO. Now, Yaolong is equipped with sophisticated equipment, including Eddy Current Inspection, Metallographic Examination, Hydrostatic Test, Water Tightness Test, Spectral Analysis, X-ray, Roughness Test, Endoscope, Mechanical Universal Test.

Yaolong is equipped with state-of-the-art machinery to produce high-quality stainless steel pipes. Our advanced facilities include laser cutting machines for precise and clean cuts, internal polishing machines to ensure a smooth, flawless finish, and bright annealing technology for superior corrosion resistance and a polished appearance. Additionally, our internal levelling machines guarantee uniform pipe dimensions and enhanced structural integrity. With these cutting-edge technologies, Yaolong delivers precision-engineered stainless steel pipes that meet the highest industry standards for durability and performance.

We are a trusted manufacturer of high-quality stainless steel tubes, dedicated to delivering superior products that meet the highest industry standards. To ensure reliability and performance, we employ a comprehensive range of advanced testing methods.

By rigorously applying these tests, Yaolong guarantees stainless steel tubes that excel in safety, durability, and performance for diverse industrial applications.

Air Under Water Pressure Test
Hydrostatic Test
Magnetic-particle Inspection
Pneumatic Test
Ultrasonic Testing
Spectro Analysis
X-ray Test

ISO 9001:2015
(ISO) 9001:2015 certification is a globally recognized quality management standard. It ensures that a company follows systematic processes to consistently deliver products and services that meet customer and regulatory requirements. For Yaolong, this certification demonstrates our commitment to quality control, continuous improvement, and customer satisfaction in stainless steel pipe manufacturing.

PED 2014/68/EU (Pressure Equipment Directive)
The PED 2014/68/EU is a European Union regulation that sets safety standards for the design, manufacturing, and testing of pressure equipment. Compliance ensures that Yaolong’s stainless steel pipes meet strict safety and performance requirements for use in high-pressure applications, such as oil & gas, chemical processing, and power plants.

AD 2000-W0
The AD 2000-W0 is a German pressure vessel standard that provides technical guidelines for materials, design, and manufacturing of pressure equipment. Certification under this standard confirms that Yaolong’s pipes adhere to high safety and engineering specifications, making them suitable for demanding industrial environments.

ISO 9001:2015
ISO 9001:2015
PED 2014/68/EU
PED 2014/68/EU
AD 2000-W0
AD 2000-W0

With years of experience in stainless steel pipe manufacturing, Yaolong ensures not only superior product quality but also professional packaging and container loading services. We use customized packaging solutions, including wooden crates, steel straps, and protective coatings, to prevent damage during transit. Our team meticulously plans container loading to maximize space efficiency while ensuring secure stacking and proper weight distribution.

By adhering to international shipping standards, Yaolong guarantees that your stainless steel pipes arrive safely, undamaged, and on time—every time. Trust our expertise for seamless logistics and worry-free global deliveries.

Professional Stainless Steel Tube & Pipe
Manufacturer & Supplier

  • Quickly delivery
  • Stable welded seam quality
  • Third party inspection
  • Mass inventory
  • Professional inspection team
  • Flanges and fittings supply together

Yaolong is equipped with state-of-the-art machinery to produce high-quality stainless steel pipes. Our advanced facilities include laser cutting machines for precise and clean cuts, internal polishing machines to ensure a smooth, flawless finish, and bright annealing technology for superior corrosion resistance and a polished appearance. Additionally, our internal levelling machines guarantee uniform pipe dimensions and enhanced structural integrity. With these cutting-edge technologies, Yaolong delivers precision-engineered stainless steel pipes that meet the highest industry standards for durability and performance.

We are a trusted manufacturer of high-quality stainless steel tubes, dedicated to delivering superior products that meet the highest industry standards. To ensure reliability and performance, we employ a comprehensive range of advanced testing methods.

By rigorously applying these tests, Yaolong guarantees stainless steel tubes that excel in safety, durability, and performance for diverse industrial applications.

Air Under Water Pressure Test
Hydrostatic Test
Magnetic-particle Inspection
Pneumatic Test
Ultrasonic Testing
Spectro Analysis
X-ray Test

ISO 9001:2015
(ISO) 9001:2015 certification is a globally recognized quality management standard. It ensures that a company follows systematic processes to consistently deliver products and services that meet customer and regulatory requirements. For Yaolong, this certification demonstrates our commitment to quality control, continuous improvement, and customer satisfaction in stainless steel pipe manufacturing.

PED 2014/68/EU (Pressure Equipment Directive)
The PED 2014/68/EU is a European Union regulation that sets safety standards for the design, manufacturing, and testing of pressure equipment. Compliance ensures that Yaolong’s stainless steel pipes meet strict safety and performance requirements for use in high-pressure applications, such as oil & gas, chemical processing, and power plants.

AD 2000-W0
The AD 2000-W0 is a German pressure vessel standard that provides technical guidelines for materials, design, and manufacturing of pressure equipment. Certification under this standard confirms that Yaolong’s pipes adhere to high safety and engineering specifications, making them suitable for demanding industrial environments.

ISO 9001:2015
ISO 9001:2015
PED 2014/68/EU
PED 2014/68/EU
AD 2000-W0
AD 2000-W0

With years of experience in stainless steel pipe manufacturing, Yaolong ensures not only superior product quality but also professional packaging and container loading services. We use customized packaging solutions, including wooden crates, steel straps, and protective coatings, to prevent damage during transit. Our team meticulously plans container loading to maximize space efficiency while ensuring secure stacking and proper weight distribution.

By adhering to international shipping standards, Yaolong guarantees that your stainless steel pipes arrive safely, undamaged, and on time—every time. Trust our expertise for seamless logistics and worry-free global deliveries.

Get a Quote & Support

Our stainless steel tubing team specializes in delivering high-quality, precision-engineered tubing solutions tailored to meet the diverse needs of industries worldwide.

quote@fsyaolong.com

Email Us

0086 189 3301 1151

Phone & WhatsApp

whatsapp QR

WhatsApp

Wechat

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