1.2550 Cold Work Steel

We export, trade and supply 1.2550 Cold Work Steel in Huangshi, Hubei, China.

Specifications:
Diameter:10mm~600mm
Delivery Condition:annealed, black/turned surface
Chemical Composition(%)
C Si Mn P S Cr
0.55-0.65 0.50-0.700.15-0.45 a 0.030a 0.030 0.90-1.20
V W
0.10-0.201.80-2.10

Specialty
High charcoal and chromium tool steel, have high penetration, small distortion, high rigidity, good endurance.

Use
1.Cold pressing mold extrusion with low pressing and burden, imprint mold, cold cutting scissor

Heat Treatment
1.Quench: 950-980`C cold oil(need re-preheat~500`C-850`C)HRCa Y60
2.Eliminate stress, stabilize framework tempering, (180-200`C)a Y2 hours HRC60-62
3.If it is necessary, it could be changed into 320-350`Ca Y2 hours backfire HRCa Y60-62

4.Annealing: 780-800`C slow cooling Melting Process
1. EAF: Electric Furnace+LF+VD(Optional)
2. ESR: Electric Furnace+LF+VD+Eleroslag Remelted(Optional)
UT Class

According to Standard of SEP 1921/84,100% Volume, Level C/c, D/d or E/e
Tolerance on Quantity
+/-10% Per Size