SACM645 steel round bar

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11-May-2024

is a kind of alloy structural steel round bar under JIS G4202 standard. SACM645 has high permeation performance and mechanical properties, excellent heat resistance and corrosion resistance, high fatigue strength and good heat resistance, non-temper embrittlement, Passable workability, low plasticity when cold deformation, welding poor hardenability low, generally in the quenched and tempered and infiltration helium.

SACM645 is widely used for manufacturing high fatigue strength, high abrasion resistance, the exact size after heat treatment, high strength and so on.

details:

1,SACM645 specification: DIA 80-1200mm(forged round bar), 80-1200mm(square bar) Length 3-16 meters
2, SACM645 heat treatment: Quenching,Annealing,Normalizing and Tempering.
3, SACM645 tolerance: 0-+3mm(DIA), 0-+10mm(Length)

SACM645 steel round bar Chemical composition %:

Grade	Chemical composition %:
Grade	C	Si	Mn	S	P	Cr	Ni	Cu	Mo
SACM645	0.35-0.42	0.20-0.45	0.30-0.60	≤0.035	≤0.035	1.35-1.65	≤0.030	≤0.030	0.15-0.25

mechanical properties:

Grade	Mechanical properties:
	Tensile strength σb (Mpa)	Yield strength σs (Mpa)	Elongation δ5/（%）	Percentage reduction of areaψ (%)	Impact AKv(J)	Impact toughness value of alpha kv (J/cm2)	Hardness
	min	min	min	min	min	min	max
SACM645	980(100)	835(85)	14	50	70	88(9)	229

Our company, KUNFENG can produce all sizes of SACM645 forged steel round bar, SACM645 forged square bar, SACM645 forged shafts and SACM645 forged blocks. Any need in , please feel free to contact us, we will reply you as soon as possible.

Tags: S7, 45CrNiMoVA, 38CrSi