1.0577 structural steel

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1.0577 Structural steel

Designation

DIN:	S 355 J2 (St 52-3)
AFNOR:	A 52 FP
UNI:	-
AISI:	A738

Chemical composition:

C	≤ 0.22
Si	≤ 0.55
Mn	≤ 1.60

Strength:

132 - 185 HB
(≈ 450 - 630 N/mm²)

Thermal conductivity at 20 °C:

40 W/m K

Character:

unalloyed structural steel with good weldability

Application:

for common applications in die, mould, and jigs and fixtures construction

Treatment by

Welding:
very good weldability due to its low carbon content

not usual:

Polishing, etching, EDM, nitriding, hard chroming

Heat treatment:

Soft annealing:
650 to 700 °C for about 2 to 5 hours
slow controlled cooling of 10 to 20 °C per hour to about 600 °C;
further cooling in air, max. 180 HB

Technical tip

If no welding is required, we recommend 1.1730 ⇒ better machinability in spite of higher strength

To the mould making overview To the die making overview

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