EN/DIN high-precision black phosphating precision hydraulic steel pipe

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Process Introduction

Black with a hint of brightness, high uniformity and consistency of color on the surface of the steel pipe, beautiful appearance, and good rust prevention performance of the steel pipe...

Detailed Introduction

Main standards：DIN2391-94/C DIN1630 EN10305 DIN2445 ASTM A179 JIS G3454 SAE J524Main standards: DIN2391-94/C DIN1630 EN10305 DIN2445 ASTM A179 JIS G3454 SAE J524
Main materials: ST35/E235 ST37.4 ST45/E255 ST52/E355
Delivery status: NBK(+N) BK(+C) GBK(+A) BKW(+LC) BKS(+SR)
Process Introduction: The finished product of EN/DIN high-precision precision drawn bright seamless steel pipe is used as the phosphating steel pipe. Imported environmentally friendly phosphating solution is used to phosphating the inner and outer walls of the steel pipe, forming a black phosphating protective film. The rust proof oil is absorbed through the micropores in the phosphating film for rust prevention treatment, and the two ends are sealed for dust prevention treatment.
Main features: Black with a hint of brightness, high uniformity and consistency of color on the surface of the steel pipe, beautiful appearance, and good rust prevention performance of the steel pipe