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SMn438 Alloy structural steel
SMn438 Alloy structural steel

SMn438 is a Alloy structural steel,Alloy structural steel, used as a mechanical part and a variety of engineering components and contains one or more of a certain amount of alloying elements of steel.

Standard: JIS G4053-2003
SMn438 alloy structural steel strength, ductility, high wear resistance, but cold plastic deformation is not high, poor weldability of.Smn438 used in tempering parts, heavy load such as shaft, axle shaft, crankshaft, axle, screw, worm, piston rod, lever, lever, connecting rod, a load of bolt. Screw, reinforcement ring, spring; smn438 alloy steel used in small diameter section important parts below 40mm, equivalent to 40Cr steel.

SMn438 steel chemical composition %


Grade

C

Si

Mn

P≤

S≤

Cr

Ni ≤

Mo

SMn438

0.17~0.23

0.15~0.35

0.60~0.90

0.03

0.03

0.35

0.25

-

SMn438 Mechanicai properities


  σb (MPa)

 σs (MPa)

 δ5 (%)

 ψ (%)

 Akv (J)

 αkv (J/cm2)

Hardness

Sample size

≥885(90)

≥735(75)

≥12

≥45

≥55

≥69(7)

≤217HB

25mm

 

We also have a high quality logistics team who We keep more than 10,000 tons SMn438 steel plates in stock each month.we can meet our customer's any quantity request.Based on these stock source,our advantage industry spread into steel process like:cutting (any size and any shape) drilling, welding,milling,machining and steel structure.
We also have a high quality logistics team who make sure the fast delivery time and shipment.
Anyway,if you want SMn438 supplier, please contact us.

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