What standards do your Seamless Steel Pipe products meet?

Our Seamless Steel Pipe products comply with ASTM, BS, JIS, and GB international standards. All products come with mill test certificates and third-party inspection is available upon request.

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Standard

AISI (20)
ASME (233)
ASTM (625)
BS (225)
DIN (232)
EN (156)
GB (265)
JIS (93)

Type

Carbon Structural Steel (65)
Equal (162)
Heavy (292)
Light (141)
Plate (140)
Round (508)
Spring Steel Bar (57)
Steel Coil (71)

Grade

200 Series (16)
300 Series (38)
400 Series (87)
HRB400 (240)
Q195 (410)
Q235B (569)
Q345 (274)
SS400 - SS490 (119)

Applications

Boiler Plate (31)
Construction (406)
Container Plate (127)
Manufacturing (621)
Railway Rail (46)
Steel Fabricated House (146)
Steel Workshop (202)
Structure Pipe (152)

Seamless Steel Pipe

Seamless Steel Pipe Manufacturers

Sino East Steel Enterprise, Seamless Steel Pipe manufacturers essays a large series of Seamless Steel Pipes that are broadly used in multiple home and commercial purposes. Owing to our specialization in steel manufacturing, we produce the most sinewy and resilient steel pipes. Apart from seamless steel pipes and tubes, we also offer oil pipes, ordinary seamless pipes, 3PE steel pipes, oil well casing pipes, and steel and ordinary API pipes. Sino East Steels manufactured pipes are considered as best in the industry. In our business sprint, we have become synonymous to reliability and quality.

Seamless steel pipes are the important type of pipes and tubes required largely in multiple homes and commercial purposes. They are ideal to ensure sufficient water supply without possibility of any leakage. They are ideal for oil supply, gas supply and various other purposes. Large construction sites and various commercial applications need such pipes in bulk and they look for reliable and famous seamless steel pipe manufacturers and suppliers.

Seamless Carbon Steel Pipe Suppliers

If you are looking for a new range of strong and durable pipes, you have come at the right and one of the popular seamless steel pipe manufacturers. Sino East Steel Enterprise is certified and reputed manufacturer and supplier of seamless steel pipes and a variety of other topes and tubes for various industrial applications. These pipes are of premium quality and made by following all the quality and safety guidelines. We deliver them worldwide at wholesale prices. Our prices are reasonable and will be lower than others. Manufacturer’s warranty is an added advantage that will ensure that you are getting the best quality at competitive prices. We have these pipes in different measurements that you can choose according to your choice.

Please go through our selection of available seamless steel pipes and tubes and place your order.

Seamless steel pipe is manufactured from solid round steel billets through hot rolling or cold drawing processes without any welding seam, resulting in superior pressure resistance and uniform mechanical properties. Sino East Steel supplies seamless pipes in carbon steel, alloy steel, and stainless steel grades (Q235, Q345, 20#, 45#, A106, A335, 304/316). Our seamless pipes range from 6mm to 630mm OD with wall thickness up to 50mm, serving high-pressure applications in oil & gas, petrochemical, boiler, heat exchanger, and power generation industries. All products ship with EN 10204 3.1 certification.

✓ No welding seam — superior pressure resistance

✓ Cold drawn or hot rolled finishing available

✓ Standards: ASTM A106, A335, API 5L, GB/T 8162/8163

✓ OD from 6mm to 630mm, WT up to 50mm

✓ Full NDT testing: UT, ET, hydrostatic testing

Applications: Oil & gas pipeline, boiler tube, heat exchanger, hydraulic cylinder, mechanical structure, chemical processing, high-pressure fluid transport.

Request a Quote for Seamless Steel Pipe →

Steel Pipe Weight Chart (kg/m)

Use this weight chart to calculate steel pipe weight per meter. Formula: Weight (kg/m) = (OD - WT) x WT x 0.02466. Download our complete steel pipe weight chart for all specifications.

Nominal Size	OD (mm)	SCH40 (kg/m)	SCH80 (kg/m)
1/2 inch (DN15)	21.3	1.27	1.62
3/4 inch (DN20)	26.7	1.69	2.20
1 inch (DN25)	33.4	2.50	3.24
2 inch (DN50)	60.3	5.44	7.48
3 inch (DN80)	88.9	8.63	11.80
4 inch (DN100)	114.3	13.49	18.55

Note: Theoretical weights. Actual weight may vary by +/-5%. Contact us for a complete weight chart PDF with all sizes and schedules.

BS1139 Scaffolding Pipe Specifications

Parameter	BS1139 Standard
Outer Diameter	48.3mm +/- 0.5mm
Wall Thickness	3.2mm (standard) / 4.0mm (heavy duty)
Length	6.0m / 6.4m (standard), custom lengths available
Material Grade	S235GT / S355J2H (EN 10219)
Surface Finish	Hot-dip galvanized (HDG) to EN ISO 1461
Zinc Coating	Minimum 55 microns (390 g/m2)
End Finish	Plain end / External upset / Swaged

All Sino East Steel scaffolding pipes comply with BS1139 and EN 39 standards. Mill Test Certificates provided with every order. Contact us for scaffolding system quotations.