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Stainless Steel Pipe,Stainless Steel Seamless Pipe,FBE Coated Pipe
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Welded Stainless Steel Pipe & Tube

Sizes our ss pipe sizes range from 6mm to 1219mm ( NPS 1/4”-DN15 to NPS 48”-DN1200) outside diameter with a full pipes schedules ranging from sch5S to sch40S.

Our company offers stainless steel pipe rolled and welded. We work with a range of material grades that include 300/400 series of stainless steel, Duplex, and other specialty alloys.


Outer Diameter: Φ6-Φ1219mm (Minimum-Maximum)

Wall Thickness: 0.3-45mm (Minimum-Maximum)

Length: 18000mm (Maximum)

Customized size needs to be confirmed with us


American Standard: ASTM A312, ASTM A358, ASTM A249, ASTM A269, ASTM A554, ASTM A790

European Standard: DIN 17457

Japanese Standard: JIS G3459

GB Standard: GB/T12770-2002, GB/T12771-2008

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Specifications & Grades

  • ASTM SA/A554

    Grade: MT316/316L, MT304/304L
    More Details
  • ASTM SA/A358

    Grades:304/L, 310S, 316/L,316H,317L,321/H, 347/H
    More Details
  • ASTM SA/A312

    Grade: 304/304L, 316/316L, 304H, 316H, 309, 310S, 317L, 321/321H, 347/347H, 904L, DUPLEX 2205 / SUPER DUPLEX 2507
    More Details
  • ASTM SA/A269

    Grade:TP304, TP304L, TP304LN, TP316, TP316L, TP316LN TP317, TP321, TP347, TP348, S31254
    More Details
  • ASTM SA/A249

    Grade:TP304H, TP309H, TP309HCb, TP310H, TP310HCb, TP316H, TP321H, TP347H
    More Details

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Ronsco produces welded stainless steel pipe & tube in different shapes: round, square and rectangle. In comparison with seamless pipe, the lead time for stainless steel welded time is way shorter. For common welded pipes, whether common in grades (304, 304L, 316, 316L ) or common in dimensions (SCH5S, SCH10S, SCH40, SCH80), we have huge stocks for your choices. It can take a week for port delivery. Other grades than the above mentioned such as 304H, 316H, 316Ti, 309S, 310S, 317L, 347, 321, duplex and nickel alloy, it can take longer time roughly two to three weeks to finish production.

Have to mention, the above mentioned lead time is estimated as per our manufacturing experience. For accurate feedback, we encourage your confirmation with us to avoid discrepancy. In terms of quality control, our welded pipes are subjected to X-ray inspection, Hrdro inspection, PMI inspection and others upon your request. The production capacity of stainless steel welded pipe amounts to 1200 tons monthly.

Product Name

Executive Standard


Steel Code / Steel Grade

Industrial Pipes

ASTM A312, A358, A778, JIS G3459

OD: 1/4"~48"

TP304, TP304L, TP316L, SUS304TP


Tubes for Boiler and Heat-Exchanger, General Service Tubing

ASTM A249, A269, JIS G3463

OD: 15.9~139.8mm

TP304, TP304L, TP316L, SUS304TB

WT: 1.6~5.0mm

Mechanical and Structural Tubes

ASTM A554, JIS G3446

OD: 7.9~152.4mm

MT304, MT304L, MT316L, MT430 Grade 201, 202 as per mill's STD SUS304

WT: 0.5~6.5mm

Square Tubes


OD: 12.7x12.7~150x150mm

MT304, MT304L, MT316L, MT430 Grade 201, 202 as per mill's STD

WT: 0.7~6.5mm

Rectangular Tubes


OD: 10x20~100x200mm

MT304, MT304L, MT316L, MT430 Grade 201, 202 as per mill's STD

WT: 0.7~6.5mm

Sanitary Tubing


OD: 25.4~165.2mm

TP304, TP304L, TP316L, SUS304TBS

JIS G3447

WT: 0.8~3.05mm

Large Gauge Pipes for Ordinary Piping

JIS G3448

OD: 15.88~318.5mm


WT: 0.8~3.0mm

Large Diameter Pipes

JIS G3468

OD: 14"~40"



Manufacturing Process