Grade:XX ferro
Latin:GB / T 699-1999

characteres
Intensity is a little higher than 15 steel, rarely quenching, no temper brittleness cold deformation plasticity high general for bending calender flanging and hammer processing, such as arch arc welding and resistance welding good welding performance, welding when the thickness is small, strict appearance or Figura complexu partibus prone ad resiliunt in cutting machining statum frigus ducitur vel normalizing annales conditione boni fere usus in exercitio vis non magnum et altum lenta
Quod ferro pertinet ad altum qualitas humilis-ipsum ipsum ferro, frigus extrusionem carburized ferro ferro, in ferro habet humilis vires, bonum lenta, plasticity et weldability, tensure 355-500mpa, eldation rate of XXIV%
Normalizing potest promovere sphaerooidization de ferro, conflentur magnam obstructionum proeutedoid ferrite et amplio cutting perficientur ex codicellos minus quam 160hbs
Technological itinereferroDie partes est: et mittens fabbendo mori blank annealing machinatione aspera machining frigus extrusionem CUMATIUM Recrystallization Annealing Machinery denique machining carburizing coetuensem ingenio molere

chemical compositionem
C: 0.17% ~ 0.24%
Si: 0.17% ~ 0.37%
MN: 0.35% ~ 0.65%
S: 0.035%
P: 0.035%
CR 0,25%
Ni: 0,25%
Cu: 0,25
Mechanica res
Tensile fortitudo B (MPa): ≥410 (XLII)
Cede vires S (MPa): ≥245 (XXV)
Elongatio V (%): ≥25
A reductionem area bits (%), LV vel
Durness: Non calor tractata, ≤156hb
Size: Size: 25mm

alia notitia

Calor Treatment Specification: Normalizing, CMX ℃, aer refrigerationem.

Metallographic structuram: Ferrite + Pearlite.
Calorde ferro XX et extinguantur duritia ferro nulla. XX:
Calor curatio de XX ferro, ad XX ferro, quod potest ad consequi normalis extinxit duritiam 30-35hrc.because calefacit temperatus est altior, quod extinguetur deformatio est maior,
I. Post aspera machining, in workpiece extinguitur ut totum a calor curatio (CMXX ℃ extinguitur muria), et processed.due ad duritiam requisita 30-35hrc, omnes processus interius esse possit, nihil plus quam in medio Et extra currus circulus, reparatione keyway.
II. Eadem aspera machining, interiorem foraminis superficiem extinguantur vel tantum mensam extinguantur keyway (fretus in magnitudine workpiece) et tandem consummatione.
III. Carburizing et extinguat, stridor et interiorem foraminis et keyway.
Processus fluxus est secundum, tertium et maxime.
● Delivery rei publicae: Delivery in statu non calor curatio vel calor curatio (annealing, normalizing vel calor temperatus temperatio) .the partum in conditione calor curatio erit in contractus. Si non indicavit, in partus fuerit sinecalor.