1, Material:
SAE 1020,GB 20#,DIN C20,DIN 1.0411,JIS S20C,ISO C20E4,CNS S20C,KS SM20C,NF C22E
2,Chemical Composition(%):
In according to GB/T 699,ASTM A29,EN10083,JIS G4051,ISO 683
|
|
C
|
SI
|
MN
|
P
|
S
|
|
GB
|
0.17-0.23
|
0.17-0.37
|
0.35-0.65
|
0.035 MAX
|
0.035 MAX
|
|
ASTM
|
0.18-0.23
|
0.15-0.35
|
0.30-0.60
|
0.040
MAX
|
0.050 MAX
|
|
JIS
|
0.18-0.23
|
0.15-0.35
|
0.30-0.60
|
0.030 MAX
|
0.030 MAX
|
|
EN
|
0.17-0.24
|
0.40 MAX
|
0.40-0.70
|
0.035 MAX
|
0.035 MAX
|
3,Technique:
EAF+LF+VD,Ingot+Forged
4.Size:
Round bar :160-1200mm
Square bar:(180-180)*(600-600)mm
5,Characteristic:
Forging refines the grain structure and improves physical properties of the metal,with proper design,the grain flow can be oriented in the direction of principal stresses encountered in actual use.
6,Applications
Shaft,axles,connecting roes,die holders,spindles,gears,rods etc
7, Delivery condition
Black surface,rough machined,Normalizing,finished machining,depend on customers' requirement
8.Mechanical property and Heating:
|
Tensile strength(N/MM2):
|
410 min
|
|
Yield strength(N/MM2):
|
245 min
|
|
Elongation(%):
|
25 min
|
|
Reduction of area(%):
|
55 min
|
|
Heating:
|
Normalizing,Heat to 910 Celsius ,air cooling
|
9,Ultrasonic test:
SEP 1921 Class C/c or D/d,ASTM E388