Profil public laoqianmeizi

Samedi 11 avril 2015

High precision ,good brightness and no oxidize residual substance in inner and outer surface and could withstand high pressure ,no deformation after cold bending , no crack and break after flattening and flaring,with good mechanical property and no deformation after bending at any angle...

Samedi 11 avril 2015

High precision ,good brightness and no oxidize residual substance in inner and outer surface and could withstand high pressure ,no deformation after cold bending , no crack and break after flattening and flaring,with good mechanical property and no deformation after bending at any angle...

Samedi 11 avril 2015

High precision ,good brightness and no oxidize residual substance in inner and outer surface and could withstand high pressure ,no deformation after cold bending , no crack and break after flattening and flaring,with good mechanical property and no deformation after bending at any angle...

Dimanche 22 mars 2015

ASTM 4140 Chemical Composition(%) Mechanical Property C Si Mn S P Cr Ni Cu Mo Yield Strength ( σs ) Tensile Strength ( σb ) Hardness 0.38~0.43 0.15~0.35 0.75~1.00 ≤0.045 ≤0.030 0.80 ~ 1.10 ≤0.030 ≤0.030 0.15 ~ 0.25 ≥930(95)(MPa) ≥1080(110) (MPa) ≤217HB End Shape Beveled end...

Dimanche 22 mars 2015

German Standard: Product Name Executive Standard Specificaiton Range (mm) Steel Grade Cold drawn seamless precision tube DIN2391 Φ3~80 x 0.5~8 ST35,ST37.4,ST44, ST45,ST52 Tolerance Table of Steel Tube: NAME Scope (mm) DIN series(mm) Out Diameter 3-30 ±0...