Steel Pipes & Fittings

Product ID: P06

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SIAM Steel Works Co., Ltd. first introduced the straight-seam welded steel pipes in Thailand in 1975. The company's plant and machinery have, since its inception, consistently been improved and upgraded to cope with the world's advanced pipe manufacturing technology. SIAM Steel Works Co., Ltd. now becomes one of the country's most experienced steel pipe manufacturers, manufacturing both straight-seam welded and spiral welded steel pipes and fittings in various sizes and specifications to meet every application in water supply, wastewater treatment, piling and construction projects. With the modern machines and equipment, pipes and fittings of 3mm to 40mm. In wall thickness, small diameter pipe of 150 mm. To extra large diameter pipe of 3600mm. Can now be manufactured with every confidence in both quality and quantity.
Nominal diameter (mm.) Outside diameter of pipe (mm.) Length of underground pipe and aboveground pipe (m.) Length of sleeve pipe (m.) Wall thickness (before lining) / underground pipe and sleeve pipe (mm.) Wall thickness (before lining) / aboveground pipe (mm.)
150 168.3 6.00 3.0 3.45 5.5
200 219.1 6.00 3.0 4.50 5.5
250 273.0 6.00 3.0 4.80 6.0
300 323.9 6.00 3.0 6.00 6.0
400 406.4 9.00 3.0 6.00 7.9
500 508.0 9.00 3.0 6.00 7.9
600 609.6 9.00 3.0 6.00 11.1
700 711.2 9.00 3.0 6.00 11.1
800 812.8 9.00 3.0 7.90 12.7
900 914.4 9.00 3.0 7.90 12.7
1000 1016.0 9.00 3.0 9.50 12.7
1100 1117.6 9.00 3.0 9.50 12.7
1200 1219.2 9.00 3.0 11.10 15.9
1300 1320.8 9.00 3.0 12.70 19.1
1400 1422.4 9.00 3.0 12.70 19.1
1500 1524.0 9.00 3.0 12.70 19.1
1800 1820.0 6.00 3.0 15.90 25.4
2000 2020.0 6.00 3.0 20.00 N/A
3600 3620.0 6.00 3.0 Max 40.00 N/A
Specifications
.A typical requirement of steel water pipes (see the below table)
Features
  • Steel pipes are manufactured to the following international and national standards
  • American standards:
    • AWWA C200: steel water pipes
    • API 5L: API line pipes
    • ASTM A53: welded and seamless steel pipes
    • ASTM A139: electric arc welded steel pipes
    • ASTM A252: welded and seamless steel pipes piles
  • British standards:
    • BS 534: steel tubes, joints and specials for water and sewage
    • BS 3601: steel tubes for pressure purposes
  • German standards:
    • DIN 1626: welded unalloyed steel tubes
    • DIN 2458: welded steel tubes
  • International standards:
    • ISO 134: steel tubes for general purposes
    • ISO 2547: welded plain end unalloyed steel tubes
    • ISO 559: steel tubes for water and sewage
  • Japanese standards:
    • JIS G3457: electric arc welded carbon steel pipes
    • JIS G3444: carbon steel pipes for general structural purposes
  • Thai industrial standards:
    • TIS 427: electrically welded steel water pipes
  • Quality controls: both non-destructive and destructive inspections are applied, I.E.
    • Dimension AL inspection
    • Hydrostatic pressure test
    • Ultrasonic flaw detector test
    • Dye-penetrate test
    • Holiday detector test
    • Magnetic thickness test
    • Tensile test
    • Bend test
  • External steel pipes:
    • Coaltar enamel, fibrous glass mat and bonded non-asbestos felt wrap
    • Coaltar enamel and double non-asbestos felt wrap
    • Bitumen enamel wrap
    • Reinforced bitumen sheath
    • Coaltar epoxy
    • Polyethylene tape or
    • Others as required
  • Internal steel pipes
    • Coaltar enamel
    • Bitumen
    • Cement mortar or concrete
    • Liquid epoxy
    • Coaltar epoxy or
    • Other as required
  • The pipe ends of steel pipes:
    • Plain ends for mechanical coupling joints
    • Plain end and beveled end for butt welded joints
    • Flanged ends for flange joints
    • Spherical spigot and socket ends for sleeve welded joints or
    • Other joints as required

Main Products

steel pipe and fittings for waterworks