Tool and Die Steel W1 Bars

George Metals is one of the largest manufacturers and suppliers in Houston, USA. The company is renowned for providing premium tool steels and alloys with years of experience in the industry. Premium materials tailored to the specific needs of various sectors such as automotive, aerospace, and manufacturing are offered by the company. Tool and Die Steel W1 Bars stand out from other products because of their superior hardness, wear resistance, and machinability. George Metals ensures to meet the finest standards in regard to these bars, providing clients with reliable solution for the creation of cutting tools, dies and molds, and others precision-engineered components that meet the requirements under extreme conditions.

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W1 Tool Steel Round Bar

Die Steel W1 Rods

W1 Tool and Die Steel Bar

What is Tool and Die Steel W1 Bars?

Tool and die steel W1 bars are typically around 0.90-1.05% carbon (C), 0.30-0.50% manganese (Mn), 0.30% silicon (Si), with trace phosphorus (P), sulphur (S), and chromium (Cr). The presence of a higher amount of carbon provides hardness and resistance to wear, whereas manganese is added to induce strength and toughness. The mechanical properties of W1 steel include a tensile strength that is around 900-1000 MPa, hardness varying between 55-62 HRC after undergoing heat treatment, and an exceptional resistance to wear. In addition, the tooling can exhibit good machinability and is readily hardened using relatively simple quenching and tempering procedures, thus allowing the material for usage in tooling applications.

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Tool and Die Steel W1 Bars Specifications

Standard : ASTM A681, ASME SA681
Dimensions : EN, DIN, JIS, ASTM, BS, ASME, AISI
Form : Round
Diameter : 10 mm ~ 900 mm
Size : 0.08 mm to 25.00 mm
Diameter Range : 0.040 mm – 12 mm (0.0016” – 0.4724”)
Application : Lathe Tools, Milling Cutter, Cutter Blades, Boring Tools, Twist drills, Milling Knives, Reamers, Taps, Metalcutting saws, Screw Cutting Tools, File Cutter’s Chissels, Drills, Hobs, Drill Bits, Tread cutting tools etc

Chemical Compositions of Tool and Die Steel W1 Bars

Element	Content (%)
C	0.70-1.50
Mn	0.10-0.40
Si	0.10-0.40
Cr	0.15
Ni	0.2
Mo	0.1
W	0.15
V	0.1
Cu	0.2
P	0.025
S	0.025

Mechanical Properties of Tool and Die Steel W1 Bars

Properties	Metric	Imperial
Tensile strength, ultimate	1680 MPa	244000 psi
Tensile strength, yield	1500 MPa	218000 psi
Poisson’s ratio (25°C)	0.27-0.30	0.27-0.30
Elongation at break	3.50%	3.50%
Bulk modulus	140 GPa	20300 ksi
Shear modulus	80.0 GPa	11600 ksi
Elastic modulus	190-210 GPa	27557-30458 ksi
Charpy impact, unnotched	86.0 J	63.4 ft-lb
Hardness, Brinell (converted from Rockwell C Hardness)	498	498
Hardness, Knoop (converted from Rockwell C Hardness)	558	558
Hardness, Rockwell C	50.0-51.0	50.0-51.0
Hardness, Vickers (converted from Rockwell C Hardness)	531	531
Machinability (based on AISI 1212 steel as 100% machinability)	40	40

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Physical Properties of Tool and Die Steel W1 Bars

Properties	Metric	Imperial
Density	7.83 g/cm³	0.283 lb/in³
Melting point	1435°C	2615°F

Thermal Properties of Tool and Die Steel W1 Bars

Properties		Conditions
Properties		T (ºC)	Treatment
Thermal expansion	10.4 x 10^-6/ºC	20-100	–
Thermal conductivity	48.3 x W/mK	100	–

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Tool and Die Steel W1 Bars Types

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Frequently Asked Questions (FAQ)

Are Tool and Die Steel W1 Bars Environmentally Friendly?

Tool and Die Steel W1 bars are recyclable, reducing environmental impact. However, their production involves energy-intensive processes. Sustainable practices can enhance their eco-friendliness, such as using recycled materials and cleaner manufacturing methods.

How Do Tool and Die Steel W1 Bars Resist Corrosion?

Tool and Die Steel W1 bars are not highly resistant to corrosion, as they are high-carbon steels. They can rust when exposed to moisture, requiring proper maintenance, such as coating or regular oiling, to prevent corrosion.

Can Tool and Die Steel W1 Bars Be Used For Structural Applications?

Tool and Die Steel W1 bars are not ideal for structural applications due to their high carbon content, which makes them brittle and less ductile. They are better suited for tools, dies, and cutting applications where hardness and wear resistance are crucial. For structural applications, steels with better toughness and strength, like carbon or alloy steels, are preferred.

Tool and Die Steel W1 Bars Uses

W1 tool and die steel bars are utilized mainly in creating cutting tools, dies, and molds because of their high hardness, wear resistance, and ability to maintain sharp edges, even at elevated temperatures. Such bars are extensively used in the production of tools, such as drill rods, reamers, taps, and punches. Furthermore, they find applications in the construction of small precision parts, like bearings and inserts, which have good abrasion resistance. High carbon content of the steel enables easy hardening and tempering, thus ideal for applications demanding precision and durability under stress and extreme working conditions.

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