العمل الساخن يموت الفولاذ الصلب العفن H11

steel grade:

H11, 4Cr5MoSiV

specification:

flats 40-350x100-1000mm

Delivery condition:

EAF+LF+VD+(ESR),forged, annealed, UT tested, peeled or machined

Chemical composition:

C:0.33-0.43 Mn:0.2-0.5 Si:0.8-1.2 Cr:4.75-5.50 Mo:1.10-1.60 V:0.30-0.6

Tolerance:

0/+2mm

UT grade:

SEP1921,Group3, class D/d

Payment item:

T/T,L/C

Delivery time:

30 days or up to the quantity

Standard

Steel name

C

Si

Mn

Cr

Mo

V

P

S

GB

4Cr5MoSiV

0.33-0.43

0.80-1.20

0.20-0.50

4.75-5.50

1.10-1.60

0.30-0.60

≤0.030

≤0.030

AISI

H11

0.33-0.43

0.80-1.20

0.20-0.50

4.75-5.50

1.10-1.60

0.30-0.60

≤0.030

≤0.030

GB

AISI

4Cr5MoSiV

H11

Critical point

Ac1

Ac3

Ar1

Ar3

Ms

MF

Temperature(Approximation)/°c

853

912

720

773

310

103

Item

Heating temperature/°C

start forging temperature/°C

final forging temperature/°C

cooling

Steel ingot

1140-1180

1100-1150

≥900

Slow cooling (pitorfurnace cooling)

Steel billet

1120-1150

1070-1100

850-900

Slow cooling (pitorfurnace cooling)