EN/DIN high-precision precision polished bright seamless steel pipe

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Process Introduction

High precision and smoothness of the inner and outer walls of the steel pipe, with no oxide layer after heat treatment, and high cleanliness of the inner wall...

Detailed Introduction

Main 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: High quality carbon steel, precision drawing, non oxidizing bright treatment (NBK state), non-destructive testing, special equipment brushing and high-pressure flushing of the inner wall of the steel pipe, rust proof oil treatment on the steel pipe, and dust prevention treatment on both ends of the cover.
Main features: High precision and smoothness of the inner and outer walls of the steel pipe, no oxide layer after heat treatment, high cleanliness of the inner wall, no leakage under high pressure, no deformation during cold bending, no cracks during expansion and flattening, and the ability to handle various complex deformations and mechanical processing. Steel pipe color: white with a hint of brightness, with a high metallic luster.