New Delivery for JIS DIN Hot DIP Building Construction Material Roofing Metal A36 Ss400 Seamless Gi Pipe Zinc Coated Galvanized Carbon Steel Pipe Tube

Along with the “Client-Oriented” business philosophy, a rigorous good quality management method, state-of-the-art producing devices as well as a potent R&D workforce, we always supply high quality products and solutions, outstanding products and services and aggressive costs for New Delivery for JIS DIN Hot DIP Building Construction Material Roofing Metal A36 Ss400 Seamless Gi Pipe Zinc Coated Galvanized Carbon Steel Pipe Tube, Good quality and aggressive prices make our products get pleasure from a significant name all around the word.
Along with the “Client-Oriented” business philosophy, a rigorous good quality management method, state-of-the-art producing devices as well as a potent R&D workforce, we always supply high quality products and solutions, outstanding products and services and aggressive costs for China 12cr1MOV Steel Pipe and J1 Stainless Steel Pipe, Our technical expertise, customer-friendly service, and specialized items make us/company name the first choice of customers and vendors. We’re looking for your inquiry. Let’s set up the cooperation right now!
Brief Introduction

ST37.4 ST44.4  ST52.4 Steel Grade Seamless Steel Tube for dynamic Loads Normal Pressures 100 to 400 bar is our company mainly product. It is widly used in heavy duty truck, military industry, railway locomotive,engine filed and the gas line in special vehicle.They could meet the requiremnts because of high precison of Out diameter and Inner diameter. Also its anti corrosion performance.

Technical Characteristics

    Standard:                     DIN 1630 DIN2445 

    Grade:                         ST37.4 ST44.4  ST52.4

    Heat Treament:            NBK(+N) normalized, BK, GBK,

    Surface Treament:       Army green passivated, Sliver Galvanized, Black Phosphated，Black paint，

    Straightness:               1mm/1000mm

    Dimension Telorance:  According to DIN1630 DIN2445 Standard

Feature

    High precison, smooth surface

    Strong anti rust/corrosion property

    No any corrosion after 220 hours’ Sale Spray Test

Delivery Conditions 

  The tubes can be produced in the following delivery conditions: 

  BK (+C) Cold finished/hard (cold finished as drawn).

  No heat treatment after the last cold forming process. 

  BKW (+LC) Cold finished/soft (lightly cold worked)

  After the last heat treatment there is a light finishing pass (cold drawing). 

  BKS (+SR) Cold finished/stress relieve annealed. 

  After the final cold forming process the tubes are stress relieve annealed. 

  GBK (+A) Annealed. 

  After the final cold forming process the tubes are annealed in a controlled atmosphere.

  NBK (+N) Normalized. (Mainly focus on)

  After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere

Application