O2 Cold Work Mold Steel
O2 cold work mold steel
1.Chemical Composition(%)(For reference Only)
C |
Si |
Cr |
Mn |
P |
S |
Mo |
V |
0.85-0.95 |
0.20-0.40 |
0.40-0.60 |
1.40-1.80 |
≤0.03 |
≤0.03 |
≤0.30 |
0.20 |
2. Available sizes :
Rolled flat bar Thickness 12-60mm width:200-605mm Rolled Round bar dia. 50-130mm
Forged flat bar Thickness:60-200mm width:100-800mm Forged round bar dia. 50-400mm
3 Annealed hardness :≤229HBS
4 Properties
• excellent toughness, compressive strength and good hardenability
• high wear resistance
• Resistance to plastic deformation
• cracking and chipping resistance
Steel ingots : EAF/ESR+LF as your requested.
Forging ingots to billet: Ratio of forging :minimum 1:5
Heating --Rolling ( Ratio of rolling :minimum 1:5 )
Tolerance on dimensions and shape:
| Thickness,mm | width,mm | Deviation from thickness,mm | Deviation from width,mm |
| 12-19 | 285-344 | +1.5,-0 | +10,-0 |
| 20-50 | 345-601 | +2,-0 | +10,-0 |
Annealing--Package
(Deviation from straightness and flatness shall be max,2.5mm per 1m of measuring length.Overall bow shall not exceed 0.25% of length.)

Inspection: Hardness test , UT-test(according to SEP 1921-84 C/c or D/d ),Chemical composition test.
Shipping
It Is widely used for manufacture of cutting tools, blanking and punching tools. Machine knives, threading tools. etc.
We are professianal manufacturer and supplier of large varieties of alloy and specials steels including cold work tool steel, hot work tool steel, high speed tool steel and plastic mould stee etc. Just let us know your required specifications, it will be our big pleasure to offer you our services.
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