Stainless Steel Seamless Pipe

Forever Steel Manufacturing Co., Ltd
stainless steel seamless pipe,SS pipe,ASTM A312 pipe,304 stainless pipe,316L seamless tube,tubería de acero inoxidable,tubos sin costura SS

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  • Coated steel pipe transportation,3LPE pipe protection,FBE coating safety,steel pipe logistics Middle East,hemp rope pipe buffering
    Specialized Protection Protocols for Coated Steel Pipe Logistics Overview At **Forever Steel**,we understand that a steel pipe is only as good as its surface condition upon arrival,For projects in **South America** and the **Middle East**,our focus is on preventing "Holiday" (coating gaps) and mechanical gouges during the complex multi-modal transport process,Multi-Layered Material Protection We utilize a combination of traditional and modern soft-protection materials to ensure the safety of 3LPE,FBE,and 3LPP coatings: * **Hemp Rope Spiraling**: Thick hemp ropes are coiled around the pipe body to maintain a fixed safety distance between pipes,eliminating friction during sea-transit,* **Straw Mat Interlining**: Heavy-duty straw mats are placed on all timber dunnage to absorb shocks and prevent pressure-point marks on the coating,* **Non-Woven Fabric Shielding**: For sensitive FBE coatings,we offer full-body wrapping in high-density non-woven fabric to protect against dust,UV rays,and micro-abrasions,Compliance & Quality Assurance All our handling and loading procedures follow **API 5L** transportation guidelines and **ISO 21809** standards,We use only nylon webbing slings and padded hooks—**zero metal-to-metal contact** is guaranteed throughout the loading process,Why Choose Forever Steel? Our commitment to detail reduces your project’s "On-Site Repair" costs,We provide a complete **Loading & Bracing Plan** with every shipment,ensuring that your procurement team has full transparency over the safety of your assets,
  • External Coatings,Cathodic Protection,Corrosion Inhibitors,Environmental Management,Monitoring and Maintenance
    Based on the extreme environmental conditions of the Middle East—specifically high ambient temperatures,significant diurnal (day-night) temperature swings,and highly saline or corrosive desert soils—preventing corrosion requires a more robust technical approach than standard environments,Here is the strategy for preventing corrosion in underground oil pipelines specifically tailored for the Middle East: 1,Advanced Coating: 3LPP vs,3LPE In the Middle East,surface temperatures can exceed 50°C,and the oil inside the pipe is often transported at high temperatures,3-Layer Polypropylene (3LPP): While 3LPE is standard globally,3LPP is the preferred choice for Middle Eastern projects (such as those by Saudi Aramco or ADNOC),Polypropylene has a much higher softening point than polyethylene,allowing it to withstand operating temperatures up to 110°C and providing better resistance to the abrasive desert sand,High-Glass Transition FBE: The primer layer (Fusion Bonded Epoxy) must have a high $T_g$ (Glass Transition Temperature) to ensure the coating does not become brittle or lose adhesion during extreme thermal cycling,2,Enhanced Cathodic Protection (CP) High temperatures accelerate the electrochemical corrosion rate (following the Arrhenius Law),For every 10°C increase in temperature,the corrosion rate can nearly double,Impressed Current Cathodic Protection (ICCP): Due to the long distances and high soil resistivity in dry deserts,ICCP is mandatory,Deep Well Anode Beds: To reach stable soil moisture and avoid the high-resistance surface layers dried out by the sun,anodes are typically buried in deep vertical wells,Automatic Rectifiers: Systems must use smart rectifiers that automatically adjust current output to compensate for changes in soil moisture and temperature between day and night,3,Managing Thermal Expansion and Stress The massive temperature delta between the scorching day and cooler night causes the steel to expand and contract significantly,Anti-Abrasion Overcoating: As the pipe moves slightly due to thermal expansion,it rubs against the soil,An additional "Rough Coat" or concrete weighting is often used to prevent the primary anti-corrosion coating from being "sanded" away,Selection of Backfill: Using screened,fine-grained sand for backfilling is critical,This prevents "point loading," where sharp rocks could be pushed through the coating as the pipe expands and contracts,4,Internal Corrosion & MIC Control Even in arid deserts,moisture can condense inside the pipeline or exist in the crude oil,Sulfate-Reducing Bacteria (SRB): These bacteria thrive in the warm underground temperatures of the Middle East,leading to Microbiologically Influenced Corrosion (MIC),Inhibitor Injection: Constant injection of corrosion inhibitors and regular Pigging (using cleaning scrapers) are required to remove water pockets and biofilms from the internal floor of the pipe,5,Remote Digital Monitoring Given the vast and inhospitable nature of Middle Eastern oil fields,manual inspection is difficult,Remote Monitoring Units (RMU): These units use satellite or GSM to transmit CP data (pipe-to-soil potential) to a central office,ensuring the protection is active 24,7 without needing field crews in the heat,Fiber Optic Sensing: Many modern lines bury fiber optic cables alongside the pipe to detect leaks and mechanical stress caused by soil movement or thermal shifts,
  • Bitumen coated pipe,Austenitic stainless steel,Production tubing
    You need custom curves for a specific project,but bending steel often results in wrinkles or cracks,It is frustrating when a simple modification ruins high-quality steel,I will show you how to get the perfect angle,To learn how to bend exhaust pipe effectively,you must support the internal structure to prevent collapse,For manual bending
  • Electric resistance welded,3LPP coated pipe,Polyethylene coated pipe
    Natural gas is a highly flammable and explosive energy source,and its safe transportation is a matter of great importance,Among all transportation methods,long-distance pipelines are considered the safest,fastest,and most cost-effective solution,However,during the operation of these pipelines
  • Structural hollow section,Precision seamless pipe,Drill pipe
    In modern construction and residential water supply systems,PE coated pipe has become one of the most reliable and widely used materials,Known for its corrosion resistance,durability,and flexibility,it provides a practical solution for both hot and cold water pipelines,Below,we explore the operating conditions,installation considerations,and technical performance of PE coated pipes in building applications,

Stainless Steel Seamless Pipe

SS seamless pipe
ASTM A312 TP316L stainless steel seamless pipe with pickled and annealed finish
High precision 304 stainless steel seamless tubing for chemical and food industry
Tubería de acero inoxidable sin costura TP304L con inspección de calidad visual
Visual inspection of stainless steel seamless pipe surface for zero-defect quality

Product Type: Stainless Steel Seamless Pipe;Stainless Steel Pipe;Boiler, Heat Exchanger Stainless Steel Seamless Steel Pipe;Super Austenitic Stainless Steel Seamless Pipe And Tube;Duplex Phase Steel Seamless Pipe And Tube;Anticorrosion Alloy Seamless Tube;

OD Range: 6mm – 762mm (1/4" to 30")

WT Range: 0.5mm – 65mm (SCH 5S to SCH XXS)

Lengths: 5.8m, 6m, 11.8m, 12m, or Customized

Surface: Pickled, Bright Annealed (BA), Polished

Process: Cold Drawn, Cold Rolled, Hot Rolled

Pipe Standard: ASTM A312, A213, A269;ASTM A789, A790;ASME SB163, SB444;ASTM B677, A928

Steel Grade: 304/L, 316/L, 310S, 321, 347H,S31803, S32205, S32750, S32760 etc

Application: Boilers, Heat Exchangers, Power Generation,Offshore Engineering, Petrochemical, Refineries,Chemical Processing, Water Treatment, Mining,Pharmaceutical, Food & Beverage, Sanitary

  • Description
  • Specification
  • Standard
  • Process
  • Packing

Seamless Stainless Steel & Nickel Alloy Pipes

We provide high-performanceSeamless Stainless Steel PipesandNickel-Base Alloy Tubesengineered for extreme industrial environments. From standard ASTM grades to specialized Duplex and Titanium alloys, our SMLS piping solutions offer unmatched corrosion resistance and structural integrity.


1. Comprehensive Technical Specifications

Our production line covers a vast range of dimensions to meet the precise requirements of global engineering projects:

Outside Diameter (OD):6mm to 762mm (1/4" to 30")

Wall Thickness (WT):0.5mm to 65mm (SCH 5S to SCH XXS)

Lengths:5.8m, 6m, 11.8m, 12m, or customized up to 20m.

Manufacturing Processes:Cold Drawn, Cold Rolled, Precision Rolled, and Hot Rolled.

Surface Finishes:Pickled & Annealed, Bright Annealing (BA), and Polished (Mirror/Satin).


2. Industry Standards & Material Grades

We strictly adhere to international quality benchmarks, providingMaterial Test Certificates (MTC)according to EN 10204 3.1/3.2 for every shipment.

Seamless Stainless steel Pipe specification and size

Standard

Dimension

 Steel Grade

ASTM A312

OD: 1/4"-20"
WT: SCH5S-SCH80S

TP304, TP304L, TP304H, TP310, TP310S, TP316, TP316L, TP316Ti,
TP317, TP317L, TP321, TP321H, TP347, TP347H, S31254, 904L

ASTM A213

OD: 6.0-50.8mm
WT: 0.8-10.0mm

TP304, TP304L, TP304H, TP310, TP310S, TP316, TP316L, TP316Ti,
TP317, TP317L, TP321, TP321H, TP347, TP347H, S31254, 904L

ASTM A269

OD: 6.0-50.8mm
WT: 0.8-10.0mm

TP304, TP304L, TP304H, TP310, TP310S, TP316, TP316L, TP316Ti,
TP317, TP317L, TP321, TP321H, TP347, TP347H, S31254

ASTM A789

OD: 19.0-60.5mm
WT: 1.2-5.0mm

S31803, S32205, S32750,S32760

ASTM A790

OD: 3/4"-10"
WT: SCH5S-SCH80S

S31803, S32205, S32750,S32760

EN 10216
DIN 17456
DIN 17458

OD: 6.0-530.0mm
WT: 0.8-34.0mm

1.4301, 1.4307, 1.4541, 1.4401, 1.4404,
1.4571, 1.4878, 1.4432, 1.4462


3. Strategic Industrial Applications

Our seamless tubes are the preferred choice for critical fluid transportation and heat exchange in:

Energy & Power:Boilers, superheaters, heat exchangers, and renewable energy.

Oil & Gas:Offshore engineering, ship building, and petrochemical refineries.

Industrial Processing:Chemical, mining, water treatment, and paper industries.

Precision Engineering:Aviation, pharmaceutical, and high-purity sanitary systems.

Infrastructure:Construction, HVAC systems, and marine engineering.


4. Export-Ready Packaging & Logistics

We ensure zero-damage delivery to international markets (Middle East, Southeast Asia, Africa, and beyond):

Protection:Plastic caps plugged on both ends; anti-rust oil or corrosive coating applied.

Wrapping:Waterproof paper or woven bags wrapped for maritime protection.

Bundling:Secure hexagonal bundles for safe crane handling and container loading.

ASTM A312 Pipe Chemical components

Grade UNS No. C Mn P S Si Cr Ni Mo Other
TP304 S30400 0.08 2 0.045 0.03 1 18.0-20.0 8.0-11.0 - -
TP304L S30403 0.035 2 0.045 0.03 1 18.0-20.0 8.0-12.0 - -
TP316 S31600 0.08 2 0.045 0.03 1 16.0-18.0 11.0-14.0 2.0-3.0 -
TP316L S31603 0.035 2 0.045 0.03 1 16.0-18.0 10.0-14.0 2.0-3.0 -
TP321 S32100 0.08 2 0.045 0.03 1 17.0-19.0 9.0-12.0 - Ti: 5x(C+N)-0.70
TP347 S34700 0.08 2 0.045 0.03 1 17.0-19.0 9.0-13.0 - Cb+Ta: 10xC-1.10
TP310S S31008 0.08 2 0.045 0.03 1 24.0-26.0 19.0-22.0 - -

ASTM A312 Pipe Sizes and Dimensions

NPS Designator Outside Diameter Nominal Wall Thickness
in. mm Schedule 5SA (in.) Schedule 5SA (mm) Schedule 10SA (in.) Schedule 10SA (mm) Schedule 40S (in.) Schedule 40S (mm) Schedule 80S (in.) Schedule 80S (mm)
1/8 0.405 10.29 ... ... 0.049 1.24 0.068 1.73 0.095 2.41
1/4 0.54 13.72 ... ... 0.065 1.65 0.088 2.24 0.119 3.02
3/8 0.675 17.15 ... ... 0.065 1.65 0.091 2.31 0.126 3.2
1/2 0.84 21.34 0.065 1.65 0.083 2.11 0.109 2.77 0.147 3.73
3/4 1.05 26.67 0.065 1.65 0.083 2.11 0.113 2.87 0.154 3.91
1 1.315 33.4 0.065 1.65 0.109 2.77 0.133 3.38 0.179 4.55
1 1/2 1.66 42.16 0.065 1.65 0.109 2.77 0.14 3.56 0.191 4.85
1 1/4 1.9 48.26 0.065 1.65 0.109 2.77 0.145 3.68 0.2 5.08
2 2.375 60.33 0.065 1.65 0.109 2.77 0.154 3.91 0.218 5.54
2 1/2 2.875 73.03 0.083 2.11 0.12 3.05 0.203 5.16 0.276 7.01
3 3.5 88.9 0.083 2.11 0.12 3.05 0.216 5.49 0.3 7.62
3 1/2 4 101.6 0.083 2.11 0.12 3.05 0.226 5.74 0.318 8.08
4 4.5 114.3 0.083 2.11 0.12 3.05 0.237 6.02 0.337 8.56
5 5.563 141.3 0.109 2.77 0.134 3.4 0.258 6.55 0.375 9.52
6 6.625 168.28 0.109 2.77 0.134 3.4 0.28 7.11 0.432 10.97
8 8.625 219.08 0.109 2.77 0.148 3.76 0.322 8.18 0.5 12.7
10 10.75 273.05 0.134 3.4 0.165 4.19 0.365 9.27 0.5 12.7
12 12.75 323.85 0.156 3.96 0.18 4.57 0.375 9.52 0.5 12.7
14 14 355.6 0.156 3.96 0.188 4.78 ... ... ... ...
16 16 406.4 0.165 4.19 0.188 4.78 ... ... ... ...
18 18 457.2 0.165 4.19 0.188 4.78 ... ... ... ...
20 20 508 0.188 4.78 0.218 5.54 ... ... ... ...
22 22 558.8 0.188 4.78 0.218 5.54 ... ... ... ...
24 24 609.6 0.218 5.54 0.25 6.35 ... ... ... ...
30 30 762 0.25 6.35 0.312 7.92 ... ... ... ...

ASTM A312 Steel Pipe Size Tolerance Table:

Standard Out diameter (mm) Wall thickness (mm) Length (mm)
ASTM A312 ≤48.26 +0.4 +(Unspecified)-12.50% Definite cut length+6.40-0
-0.8
>48.26~114.30 +0.8
-0.8
>114.30~219.08 +1.6
-0.8
>219.08~457.20 +2.4/-0.8
>457~660 +3.2
-0.8
>660~864 +4
-0.8
>864~1219 +4.48
-0.8

Weight And Thickness Of S.S Gauge Pipes

Size (inch) OD (mm) 10 SWG (3.2mm) 12 SWG (2.6mm) 14 SWG (2.1mm) 16 SWG (1.65mm) 18 SWG (1.2mm)
Unit - Weight/Mtr Weight/Mtr Weight/Mtr Weight/Mtr Weight/Mtr
1/2" 12.7 0.754 0.651 0.552 0.452 0.342
3/4" 19.05 1.258 1.061 0.883 0.712 0.531
1" 25.4 1.762 1.47 1.214 0.972 0.72
1 1/2" 38.1 2.77 2.289 1.875 1.492 1.098
2" 50.8 3.778 3.108 2.537 2.012 1.476
3" 76.2 5.794 4.747 3.86 3.051 2.232
4" 101.6 7.81 6.385 5.183 4.091 2.988

Seamless Stainless Steel Pipe Production Process

ASTM A312 Pipe Chemical components

Grade UNS No. C Mn P S Si Cr Ni Mo Other
TP304 S30400 0.08 2 0.045 0.03 1 18.0-20.0 8.0-11.0 - -
TP304L S30403 0.035 2 0.045 0.03 1 18.0-20.0 8.0-12.0 - -
TP316 S31600 0.08 2 0.045 0.03 1 16.0-18.0 11.0-14.0 2.0-3.0 -
TP316L S31603 0.035 2 0.045 0.03 1 16.0-18.0 10.0-14.0 2.0-3.0 -
TP321 S32100 0.08 2 0.045 0.03 1 17.0-19.0 9.0-12.0 - Ti: 5x(C+N)-0.70
TP347 S34700 0.08 2 0.045 0.03 1 17.0-19.0 9.0-13.0 - Cb+Ta: 10xC-1.10
TP310S S31008 0.08 2 0.045 0.03 1 24.0-26.0 19.0-22.0 - -

ASTM A312 Pipe Sizes and Dimensions

NPS Designator Outside Diameter Nominal Wall Thickness
in. mm Schedule 5SA (in.) Schedule 5SA (mm) Schedule 10SA (in.) Schedule 10SA (mm) Schedule 40S (in.) Schedule 40S (mm) Schedule 80S (in.) Schedule 80S (mm)
1/8 0.405 10.29 ... ... 0.049 1.24 0.068 1.73 0.095 2.41
1/4 0.54 13.72 ... ... 0.065 1.65 0.088 2.24 0.119 3.02
3/8 0.675 17.15 ... ... 0.065 1.65 0.091 2.31 0.126 3.2
1/2 0.84 21.34 0.065 1.65 0.083 2.11 0.109 2.77 0.147 3.73
3/4 1.05 26.67 0.065 1.65 0.083 2.11 0.113 2.87 0.154 3.91
1 1.315 33.4 0.065 1.65 0.109 2.77 0.133 3.38 0.179 4.55
1 1/2 1.66 42.16 0.065 1.65 0.109 2.77 0.14 3.56 0.191 4.85
1 1/4 1.9 48.26 0.065 1.65 0.109 2.77 0.145 3.68 0.2 5.08
2 2.375 60.33 0.065 1.65 0.109 2.77 0.154 3.91 0.218 5.54
2 1/2 2.875 73.03 0.083 2.11 0.12 3.05 0.203 5.16 0.276 7.01
3 3.5 88.9 0.083 2.11 0.12 3.05 0.216 5.49 0.3 7.62
3 1/2 4 101.6 0.083 2.11 0.12 3.05 0.226 5.74 0.318 8.08
4 4.5 114.3 0.083 2.11 0.12 3.05 0.237 6.02 0.337 8.56
5 5.563 141.3 0.109 2.77 0.134 3.4 0.258 6.55 0.375 9.52
6 6.625 168.28 0.109 2.77 0.134 3.4 0.28 7.11 0.432 10.97
8 8.625 219.08 0.109 2.77 0.148 3.76 0.322 8.18 0.5 12.7
10 10.75 273.05 0.134 3.4 0.165 4.19 0.365 9.27 0.5 12.7
12 12.75 323.85 0.156 3.96 0.18 4.57 0.375 9.52 0.5 12.7
14 14 355.6 0.156 3.96 0.188 4.78 ... ... ... ...
16 16 406.4 0.165 4.19 0.188 4.78 ... ... ... ...
18 18 457.2 0.165 4.19 0.188 4.78 ... ... ... ...
20 20 508 0.188 4.78 0.218 5.54 ... ... ... ...
22 22 558.8 0.188 4.78 0.218 5.54 ... ... ... ...
24 24 609.6 0.218 5.54 0.25 6.35 ... ... ... ...
30 30 762 0.25 6.35 0.312 7.92 ... ... ... ...

ASTM A312 Steel Pipe Size Tolerance Table:

Standard Out diameter (mm) Wall thickness (mm) Length (mm)
ASTM A312 ≤48.26 +0.4 +(Unspecified)-12.50% Definite cut length+6.40-0
-0.8
>48.26~114.30 +0.8
-0.8
>114.30~219.08 +1.6
-0.8
>219.08~457.20 +2.4/-0.8
>457~660 +3.2
-0.8
>660~864 +4
-0.8
>864~1219 +4.48
-0.8

Weight And Thickness Of S.S Gauge Pipes

Size (inch) OD (mm) 10 SWG (3.2mm) 12 SWG (2.6mm) 14 SWG (2.1mm) 16 SWG (1.65mm) 18 SWG (1.2mm)
Unit - Weight/Mtr Weight/Mtr Weight/Mtr Weight/Mtr Weight/Mtr
1/2" 12.7 0.754 0.651 0.552 0.452 0.342
3/4" 19.05 1.258 1.061 0.883 0.712 0.531
1" 25.4 1.762 1.47 1.214 0.972 0.72
1 1/2" 38.1 2.77 2.289 1.875 1.492 1.098
2" 50.8 3.778 3.108 2.537 2.012 1.476
3" 76.2 5.794 4.747 3.86 3.051 2.232
4" 101.6 7.81 6.385 5.183 4.091 2.988

Seamless Stainless Steel Pipe Production Process

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  • Tags : stainless steel seamless pipe , SS pipe , ASTM A312 pipe , 304 stainless pipe , 316L seamless tube , tubería de acero inoxidable , tubos sin costura SS

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