Square Alloy Bar,High Tensile Forging Materials 4140+Q/T

C

Si

Mn

P

S

Cr

Ni

Mo

Cu

Al

V

0.38/0.45

0.17/0.35

0.6/0.8

max.0.03

max.0.03

0.9/1.2

max.0.2

0.15/0.25

max.0.3

0.02/0.05

max.0.05

Material:

4140   forged steel round bar Or square bar

Process:

Forged from vacuum degassed ingots.

Diameter:

130mm-1000mm (optional)

Length:

1000mm-12000mm Straightness: 3mm/M max(optional)

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:

15 tons

Heat treatment:

Normalized / Annealed / Quenched / tempered (optional)

Technical Data:

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

Properties:

As your request

Test:

Ultrasonic test according to SEP 1921-84  Class C/c and D/d  (optional)

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

similar steel grade

4140/SCM440/SAE4140/42CRMo/42CrMo4/En19/42CrMoS4

Application:

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