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En10305-1 Seamless Cold Drawn Tubes
Guangzhou Kingmetal Steel Industry Co., Ltd.- Type:Seamless
- Technique:Cold Drawn
- Material:Carbon or Alloy Steel
- Surface Treatment:Bright Finishing or Polishing
- Usage:Pipeline Transport, Oil,Gas Drilling, Machinery Industry, Chemical Industry, Special Purpose
- Section Shape:Round
Base Info
- Model NO.:KM-20200930
- Size:4-260mm
- Thickness:0.5-25mm
- Grade:E215, E235, E355,etc
- Processing Way:Cold Drawn or Cold Rolled
- Product Application:Auto Industry,for Machinery Use,Oil Cylinder Tube
- Package:in Bundle
- Transport Package:in Bundle
- Specification:4mm~260mm
- Trademark:Kingmetal
- Origin:Made in China
- HS Code:73043190
- Production Capacity:500~1000 Tons Per Month
Description
Technical delivery conditions:
- Steel Grade
Chemical Components (%) Steel Name Steel Number C max.
Si max.
Mn max.
P max.
S max.
AL min.
E215 1.0212 0.10 0.05 0.7 0.025 0.025 0.025 E235 1.0308 0.17 0.35 1.2 0.025 0.025 / E355 1.058 0.22 0.55 1.6 0.025 0.025 / Delivery Conditions
The tubes shall be manufactured from hot finished seamless tubes by cold drawing or other suitable processes. The tubes shall be supplied in one of the delivery conditions as follows:
Designation Symbol Description Cold drawn/hard +C No heat treatment after the final cold drawing process. Cold drawn/soft +LC After the final heat treatment there is a suitable drawing pass. Cold drawn and stress relieved +SR After the final cold drawing process there is a stress relief heat treatment in a controlled atmosphere. Annealed +A After the final cold drawing process the tubes are annealed in a controlled atmosphere. Normalized +N After the final cold drawing operation, the tubes are normalized in a controlled atmosphere. Delivery Condition Symbol in accordance with EN10305 and DIN2391
Symbol in accordance with EN 10305 Symbol in accordance with DIN2391 +C BK +LC BKW +SR BKS +A GBK +N NBK Mechanical Properties
Mechanical properties at room temperature Steel Grade Minimum values for the delivery condition Steel Name Steel Number +C +LC +SR +A +N Rm Mpa
A %
Rm Mpa
A %
Rm Mpa
ReH Mpa
A %
Rm Mpa
A %
Rm Mpa
ReH Mpa
A %
E215 1.0212 430 8 380 12 380 280 16 280 30 290 to 430 25 30 E235 1.0308 480 6 420 10 420 350 16 315 25 340 to 480 235 25 E355 1.0580 640 4 580 7 580 450 10 450 22 490 to 630 355 2