Galvanized Round Seamless Pipe is manufactured by applying a hot‑dip zinc coating to seamless carbon steel pipe, providing superior corrosion resistance and long‑term durability.
The seamless structure ensures high pressure resistance, uniform wall thickness, and excellent mechanical performance. The zinc coating protects the steel from rust and oxidation, making it ideal for outdoor, industrial, and fluid transport applications.
This product is widely used in water pipelines, structural frameworks, greenhouses, scaffolding, and general engineering projects.
🟧 Types
1. Hot‑Dip Galvanized Seamless Pipe
Thick zinc layer
Best corrosion resistance
Suitable for outdoor and industrial environments
2. Pre‑Galvanized Seamless Pipe
Thin zinc layer
Suitable for indoor or light‑duty applications
🟧 Standards
ASTM A53
ASTM A106
ASTM A795
EN 10240
BS 1387
ISO / DIN galvanized pipe standards
🟧 Product Specifications & Available Sizes
Specification
Details
Outside Diameter
21.3–406 mm
Wall Thickness
1.0–20 mm
Length
6 m / 12 m / custom
Zinc Coating
40–600 g/m²
Type
Hot‑Dip Galvanized / Pre‑Galvanized
Ends
Plain End / Beveled End
Surface
Bright / Matte / Spangle
Tolerance
As per ASTM / EN standards
Regular Size (mm)
Ф21×4
Ф87×17.5
Ф121×19
Ф168×19
Ф21×4.5
Ф89×6-12
Ф124×6.5
Ф168×8
Ф22×6.5
Ф89×15
Ф127×10
Ф170×25
Ф25×8
Ф89×17
Ф127×13
Ф172×18
Ф28×8
Ф91×7.5
Ф127×8
Ф180×10
Ф30×10
Ф92×12
Ф130×12
Ф180×18
Ф30×8
Ф95×10
Ф130×18
Ф180×6
Ф32×8
Ф95×12
Ф133×6-12
Ф180×8
Ф34×6
Ф95×16
Ф133×18
Ф183×18
Ф34×8
Ф95×20
Ф140×8-12
Ф185×18
Ф38×10
Ф95×5.5
Ф140×15
Ф185×20
Ф38×8
Ф95×8
Ф140×20
Ф192×18
Ф40×10
Ф100×8.5
Ф142×18
Ф194×10
Ф40×8
Ф100×13
Ф145×18
Ф194×16
Ф42×5-10
Ф102×6-10
Ф146×10
Ф196×16
Ф45×6-12
Ф102×15
Ф146×12
Ф196×24
Ф48×5-10
Ф104×8.5
Ф152×10
Ф200×20
Ф50×8-12
Ф108×6-10
Ф152×12
Ф219×6-12
Ф51×10
Ф108×13
Ф152×14
Ф219×15
Ф55×10
Ф108×15
Ф152×20
Ф245×10
Ф57×6-10
Ф110×6
Ф152×6
Ф250×25
Ф60×6-12
Ф114×6-10
Ф152×8
Ф273×6-12
Ф65×6-12
Ф114×13
Ф159×6-10
Ф273×34
Ф68×6-12
Ф114×17.5
Ф159×12
Ф325×8-10
Ф70×8
Ф116×12
Ф159×15
Ф355×14
Ф70×10
Ф116×8
Ф159×18
Ф377×10
Ф76×6-12
Ф118×2
Ф159×22
Ф406×14
Ф80×8-12
Ф121×6-11
Ф168×10
Ф457×14
Ф83×8-12
Ф121×16
Ф168×12
Ф508×15
🟧 Chemical Composition (Base Material: Carbon Steel)
Element
Content (%)
C
≤ 0.25
Mn
≤ 1.20
Si
≤ 0.40
P
≤ 0.040
S
≤ 0.030
🟧 Mechanical Properties
Property
Value
Tensile Strength
≥ 330 MPa
Yield Strength
≥ 205 MPa
Elongation
≥ 20%
Hardness
≤ 90 HRB
🟧 Physical Properties
Property
Value
Density
7.85 g/cm³
Melting Range
1450–1520°C
Thermal Conductivity
54 W/m·K
Magnetic
Magnetic
🟧 Manufacturing Processes
Hot Rolled Seamless Pipe
Cold Drawn Seamless Pipe
Hot‑Dip Galvanizing
Pre‑Galvanizing
Cutting, beveling, threading
🟧 Primary Industry Usage
Water and fluid pipelines
Outdoor structural engineering
Greenhouses and agricultural frames
Fencing and guardrail systems
Scaffolding and construction support
Industrial and mechanical applications
🟧 Why Use Galvanized Round Seamless Pipe
Superior corrosion resistance
High pressure and mechanical strength
Smooth inner wall for better flow efficiency
Long service life in harsh environments
Suitable for both structural and fluid applications
