Black Phosphated Seamless Carbon/Alloy Steel Pipe

Product Overview:

Diameter: NPS 1/8" to NPS 6" 
Pipe Schedules: SCH 40, SCH 80, SCH 160, SCH XS, SCH XXS, All Schedules 
Length: 18m Max 
Size tolerance: 
Pipe End: PE, BE, Treaded 
Manufacture method: Cold Drawn/Rolled or Hot Rolled  
Delivery Condition: BKS, BKW, GZF, NZF, GBK, NBK 
Surface Treatment: Black Phosphating 
Standard & Grade: Delivery: 7~10days For Stock, Within 30 Days For Custom-Made.

Din Series With High Precision Fine Pull Bright Seamless Steel Tube As a Finished Phosphate With Steel Pipes, Used Imported Environmental Phosphating Solution Steel Pipe Outer Wall Phosphate, Phosphate Black Protective Film Is Formed By Phosphate Film Microporous Absorption Antirust Oil Anti-Rust Treatment.
Main Features: Steel Color: Black Belt In Bright, Color Steel Surface Evenness, Strong Consistency, Appearance More Beautiful, Pipe Rust Good Performance.

Related Standard: EN 10305-4 (DIN 2445/2) or EN 10305-1 (DIN 2391/C), DIN1630, DIN17175, ASTM A179, ASTM A192, ASTM A213, ASTM A519.

Delivery condition: 
a. BK(+C) Cold finished/hard (cold finished as drawn)
No heat treatment after the last cold forming process
b. BKW(+CC) Cold finished/soft (lightly cold worked)
After the last heat treatment there is a light finishing pass (cold drawing)
c. BKS(+SR) cold finished/stress relieve annealed
After the final cold forming process the tubes are stress relieve annealed
d. GBK(+A) Annealed
After the final cold forming process the tubes are annealed in a controlled atmosphere
NBK(+N) Normalized
After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere.

Description Name: 
Cold drawn precision seamless tube; Black phosphating precision hydraulic steel pipe Manufacturer; Black phosphated precision hydraulic smls steel tube supplier; Din 2391 st37.4 st52.4Thin Wall Black phosphated Seamless Precision Carbon Steel Tubing; Din 2391 st37.4 st52.4 Black phosphating Seamless Piping Supplier; High Quality Din 2391 st37.4 st52.4 Black phosphating Seamless Steel Pipe Manufacturer; Din 2391 st37.4 st52.4 Carbon Steel Cold Drawn Black phosphating Tubes; Din 2391 En 10305 Black phosphating Tube/Pipe Manufacturer; DIN 2391 st37.4 st52.4 Black phosphating Square Hollow Section;

Application: 
Automotive Pipeline System;
Hydraulic System Of Diesel Engine And Engineering Machinery;
Hydraulic System Of Locomotive, Aerospace And Aviation,
Shipbuilding And Various Machinery;
Metal Processing Of Wind Power Equipment;Etc.