Black steel pipe
Black steel pipe type
Mide seamless steel pipe, Hot rolled seamless steel pipe, Cold drawn seamless steel pipe, Boller steel pipe, Fluid transmission pipe, Wall thickness steel pipe
Blcak steel pipe specification:
Outer diameter: 1/4"-40" (13.7mm-1016mm
Wall thickness: 1.5mm-80mm
Black steel pipe production process
Hot rolling,Cold drawn, thermal expansion.cutting,etc.
Black steel pipe origin
Black steel pipe application
Widely used in gas & oil conveying, mine and oilfield drilling.
Black steel pipe capacity
Annual 100,000 tons
Black steel pipe advantage
Standard Complied Quality
Strict Quality Control
Considerate after-sale service
Available EN10204 3.1 Certificate can be provided
Mill ISO certificate
Mill Product Catalog
Available Detailed Mill Company Profile
Available Mill Quality Manual
Available Mill ITP
Available Mill Past Project list
Black steel pipe inspection
Hydrostatic testing, ultrasonic testing, eddy current testing, magnetic particle testing, impact testing, hardness testing, etc.
Black steel pipe package and storage
Safe and Seaworthy packing suitable for export; As per customer’s requirement.
Black steel pipe warranty
Black steel pipe feature
Black iron is the uncoated steel and is also called as black steel. When steel pipe is forged, a black oxide scale forms on its surface to give it the finish which is seen on this type of pipe. Because black steel is subject to rust and corrosion, the factory also coats it with protective oil. Those black steel are used for manufacturing pipe and tube, which will not rust for a long time and requires very little maintenance. It is sold in standard 21-foot lengths TBE..
Black steel pipe quality inspection:
1. Our factory has its own "experimental testing center".CNAS Laboratory Accreditation Certificate
2.Control quality strictly.The first pass is the quality inspection on the production line,The second pass is full inspection of the production quality .
3.We have got internationally recognized certificates, ISO, CE, LR,Philippine certificate,also support third-party testing,as SGS, BV, ect.
Standard of Carbon steel seamless pipe
ASTM A53 Gr.B
Black and hot-dipped zinc-coated steel pipes welded and seamless
ASTM A106 Gr.B
Seamless carbon steel for high temperature service
Seamless cold-drawn low-carbon steel heat-exchanger and condenser tubes
Seamless carbon steel boiler tubes for high pressure
Seamless Medium-carbon boiler and super heater tubes
Seamless alloy-steel boiler, super heater, and heat-exchanger tubes
ASTM A333 GR.6
seamless and welded carbon and alloy steel pipe intended for use at low temperatures.
ASTM A335 P9,P11,T22,T91
Seamless ferritic alloy-steel pipe for high-temperature service
API Spec 5CT J55/K55/N80/L80/P110/K55
Seamless steel pipe for casing
API Spec 5L PSL1/PSL2 Gr.b, X42/46/52/56/65/70
Seamless steel pipe for line pipe
Seamless steel tube for elevated temperature
Cold drawn seamless prevision pipe
Seamless circular unalloyed steel tubes subject to special requirements