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Mechanical ISO 4957 Grade 40CrMnMoS8-6 Cold Tool Steel Bar

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Mechanical ISO 4957 Grade 40CrMnMoS8-6 Cold Tool Steel Bar

Large Image : Mechanical ISO 4957 Grade 40CrMnMoS8-6 Cold Tool Steel Bar

Product Details:

Place of Origin:	CHINA
Brand Name:	UST
Certification:	ISO
Model Number:	ISO 4957 Grade 40CrMnMoS8-6

Payment & Shipping Terms:

Minimum Order Quantity:	MOQ1-2TONS
Packaging Details:	Plastic plugs in both ends, Hexagonal bundles of max 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips.
Delivery Time:	Within 5-8 weeks
Payment Terms:	L/C, T/T
Supply Ability:	1500 ton/month

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Detailed Product Description

Products:

Cold Work Tool Steel

Is Alloy:

Standard:

ISO4957

3 Tons

High Light:

ISO 4957 Cold Tool Steel Bar

Mechanical Parts Tool Steel Bar

Piercing Tool Steel Bar

ISO 4957 Grade 40CrMnMoS8-6

TYPICAL APPLICATIONS

Alloy tool steel is widely used to produce the cutting tool, cold/heat distortion mould and measuring implements,

and further to manufacture the piston, valve, valve seat of fuel pump of diesel engine.

Cutting tools

Mechanical parts

Air hammer tools

Piercing tools

PRODUCT DESCRIPTION

The alloy is usually produced by EAF /VD /LF followed by electroslag refining (ESR) if necessary for special purpose.

Bars and, where applicable, forgings are subjected to ultrasonic examination based on the different level according to the buyers' requirements.

Bars are usually supplied bright in the softened condition.

Final heat treatment - heat treatment / QT

※ MATERIAL SPECIFICATIONS

EN ISO 4957: 2000 , DIN 17350 (1980)

※ AVAILABLE SHAPES

Black bar /Flat bar /Square bar

Bright - peeled + polishing /centerless grinding / peeled + slidabrading

Forged - ring /tube /pipe casing /discs /shaft

Chemical composition(mass fraction)(wt.%)

Elements	Min.(≥)	Max.(≤)
C	0.35	0.45
Si	0.30	0.50
Mn	1.40	1.60
P		0.030
S	0.05	0.10
Cr	1.80	2.00
Mo	0.15	0.25
V

Mechanical Properties

Tensile strength	206～844	σb/MPa
Yield Strength	398	σ 0.2 ≥/MPa
Elongation	94	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	558～382	-
HRC	30	-

Physical Properties

Thermal expansion	86-93	e-6/K
Thermal conductivity	28-75	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	6414-0429	째C
Density	9843-3299	kg/m³
Resistivity	0.50-0.60	Ohm.mm²/m

Heat Treatment Regime

Annealing	Quenching	Tempering	Normalizing	Q & T
√	√	√	√	√

※ INVENTORY - hot rolled bar
Diameter: 12mm, 30mm, 44mm, 25mm
Quantity: 458kg

PRODUCT PROFILE

Round bar / Wire rod (Diameter): 0.50mm to 3000mm

Square bar / Flat bar: 3mm to 2000mm

Plate / Sheet steel / Steel strip: 0.1mm to 2500mm

Width: 8mm to 2500mm

Length: random length or based on the customer's special requirement.

Forged steel shape: stepped shafts with flanks / discs /tubes /slugs /donuts /cubes /other different shapes based on OEM.

Pipes / Tubings: OD 3-219 mm, with wall thickness ranging from 0.50 to 35 mm.

Tag:

Contact Person: Anndy

Tel: +8615502127172

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