10mm~900mm alloy steel forgings forged round bar for railways,bridge aisi 4340 steel

Brand

Dongbei?Tegang

Company

Sichuan?Liaofu?Special?steel?co.,Ltd.

Diameter

10mm?~900mm or at your requirements

Length

0.5m~12m?or?at?your?requirements

tolerance

a)?Diameter:??0.?15mm?or the others

b)?Length:4.?5mm? or the others

surface

180G,?320G,?400G?Satin?/?Hairlin(Matt?Finish,?Brush,?Dull?Finish), 400G,500G,?600G?or?800G?Mirror?finish

test

Squash?test,?Extended?test,?Water?pressure?test,?Crystal?rot?test,??Heat?treatment,?

?NDT.

Chemical?element

C

Si

Mn

Cr

Mo

Ni

B

≤0.60

≤1.40

≤2.60

≤1.80

≤0.55

≤3.65

≤0.0035

Mechanical?Property

Tensile?Strength

≥?(440~1470)

Yield?Strength

≥(255~1330)

Extension

≥?(7%~24%)

Reduction?of?cross-section

≥?(35%~60%)

Impact?absorbing?energy

≥?(31~110)

Hardness?(HBS)

≤?(179~269)

Payment?term

T/T?L/C?or?we?can?negotiate?it.

Delivery?condition

EAF?+?LF?+?VD,?hot?rolled/forged/?Heat?Treatment(optional),

Trade?term

FOB/CFR/CIF?

Delivery?time

have??stocks

Packagements

According?to?customers\'?requirements?or export\'s demands

Port

Dalian

MOQ