Grade

Dia(mm)

C

Si

Mn

P

S

Ni

Cu

Cr

20

 
18-600
 

0.17-0.23

0.17-0.37

0.35-0.65

≤0.035

≤0.035

≤0.30

≤0.25

≤0.25

45

0.42-0.50

0.17-0.37

0.35-0.65

≤0.035

≤0.035

≤0.30

≤0.25

≤0.25

Material:

forged square steel bar
 

Diameter:

100mm-1000mm
 

Length:

2000mm-12000mm Straightness: 3mm/M max;
square bar.100-1000mm, blocks sizes up to 800*1000mm
 

Process:

EAF + LF + VD + Forged + Heat Treatment (optional)
 

Delivery condition:

Hot forged +Rough machined (black surface after Q/T)+ Turned (optional)

Delivery Time:

30-45 days
 

MOQ:

20 tons
 

Heat treatment:

Normalized / Annealed / Quenched / tempered

Forged ratio:

no less than 3:1
 

Technical Data:

According to the customer's requirement of Chemical Composition, Physical Properties and Mechanical Testing

Test:

Ultrasonic test according to SEP 1921-84 G3 C/c
 

Certificate of Quality

issued in English, in addition the normal terms, production process, the mechanical property (yield strength, tensile strength, elongation and hardness), forged ratio, UT test result, Grain size, heat treatment methods and the sample of is shown on the Certificate of Quality
 

Marking:

Grade, heat NO. length will be stamped one each bar with required color
 

Payment:

30% advance by TT; Balance pay before the shipment against shipping documents or irrevocable LC at sight
 

Application:

Statically and dynamically stressed components for vehicles, engines and machines. For parts of larger cross-sections, crankshafts, gears.