Steel Pipe Supplier
GNEE is a steel pipe supply company specializing in ERW, LSAW, SSAW, and pipe fitting solutions for oil & gas, water transmission, piling, and structural applications.
Through a coordinated supply network, strict quality control procedures, and long-term cooperation with qualified and certified production partners, we provide global customers with reliable piping products manufactured to applicable API, ASTM, EN, and ISO standards.
Our supply and quality assurance network supports key inspection and production requirements, including welding, hydrostatic testing, ultrasonic inspection, dimensional control, and anti-corrosion coating. These coordinated processes help ensure consistent product quality, full traceability, and compliance with international project specifications.
Supply Range
ERW Steel Pipe
Outer Diameter: 1/2"-28"
Wall Thickness: 1.65-20mm (All Schedules)
Length: 1-12m or As Customer Requirement
Standard: ASTM 5L, ASTM A53, ASTM A178, ASTM A500/501, ASTM A691, ASTM A252, ASTM A672, EN 10217
Ends: Plain End / Beveled End / Threaded
Surface Treatment: Bare, Painting Black, Varnished, Galvanized, Anti-corrosion 3PE PP/EP/FBE coating etc.
LSAW Steel Pipe
Outer Diameter: 355.6mm-2320mm
Wall Thickness: 7-50mm
Length: 5.8m / 6m / 11.8m / 12m / 18m / 32m
Standard:
API 5L PSL1 / PSL2 Gr.A, Gr.B, X42, X46, X52, X56, X60, X65, X70
ASTM A53 / A252 / A500 / A672 / A691 / A139
EN10025 / EN10210 / EN10219 / EN10217 / EN10208 / EN10297
AS1163 / JIS G3457 / JIS G3101
DIN 17100
Ends: Black ends / Bevelled ends / Plain ends
Surface Treatment: Bare, Black Painting, Varnished, Galvanized, Anti-corrosion coating, etc.
SSAW Pipe
OD: 219mm -4064mm
WT: 3.2-40mm
Length: 3m-48m
Standard:
API 5L PSL1/PSL2 Gr.A,Gr.B,X42,X46,X52,X56,X60,X65,X70
ASTM A53/A252/A500
EN10219/EN10208/EN10297
JIS G3457
SY/T5037
End: Square Ends / Plain Ends (straight cut, saw cut, torch cut), Beveled / Threaded Ends
Surface Treatment: Black Painting / Oil Painting / Anti-Rust oil / Anti-Corrosive Coating
GNEE Case
Quality Control & Inspection Service
Raw Material Inspection Forming Inspection Welding Monitoring Online UT/ET Hydrostatic Test Dimensional Inspection Mechanical Test NDT Final Inspection Coating Inspection Final Release
GNEE Certificate
GNEE Customers
