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Specifications
T8 Special SteelRound bars
Dia: 80~800mm
Length:2000-13000mm
Special Steel T8
1).Technique:Forged and Hot-rolled
2).Dia: 80~800mm Length:2000-13000mm
1. Standards:JIS SK5 ,DIN 1.1830,GB:T8Mn
2. Surface: Black surface/Turned/Ground
3. Process: EAF+LF+VD+ Forged+ Heat Treatment (Annealed, Normalized, Q+T)
4. Machine Capability
Hardness:annealing, ≤187HB,
indentation diameter≥4.4 mm;
Quenching, ≥62HRC
Heat treatment specification: sample quenching 780 - 800 °C, water cooling
5. Chemical Composition (%):
C
Si
Mn
P
S
0.80-0.90
0.35(max)
0.40-0.60
0.035(max)
0.03(max)
6. Inspection: 100% Ultrasonic according to the test standards:SEP1921-84,GR.3 CLASS C/C
7. Packing situation: standard seaworthy packing or as customer required
Application:Suitable for making cross section biggish tools because it has good riqidity and good abrasion after heat treatment
Note:
According to national standard (GB)for our products, if not, supply according to national standards(GB) or agreement.
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