AISI 9840 Round Stee Lalloy 9840 9840 Stee Lsae 9840

• After-sales Service: AISI 9840 Round Steel Alloy 9840 9840 Steel SAE
• Warranty: 365days
• Type: Alloy Steel Bar
• Standard: AISI
• Technique: Forged
• Application: Structural Steel Bar, Tool Steel Bar, Die Steel Bar
• Model NO.: aisi 9840 Round Steel Alloy 9840 9840 steel SAE
• Surface Treatment: Galvanized
• Alloy: Alloy
• Special Use: Mold Steel, Free Cutting Steel, Cold Heading Steel
• Transport Package: Wooden Box
• Specification: din 10---580
• Trademark: taixie
• Origin: Chian
• HS Code: 2501001100
• Production Capacity: 5000kgs

Product Description

aisi 9840 Round Steel

Alloy 9840

9840 steel

SAE 9840

aisi 9840 Round Steel(commonly quenched steel) high hardenability Main applications: high strength parts such as aero engine shaft, shaft, gear, fastener and so on.

 

Chemical composition of aisi 9840 Round Steel

Carbon C 0.37~0.44

Si 0.17~0.37

Manganese Mn 0.50 ~ 0.80

Allowable residual content of sulfur S ≤0.025

Allowable residual content of P ≤0.025

Cr 0.60 ~ 0.90

Ni 1.25 ~ 1.65

Allowable residual Cu content ≤0.25

Molybdenum Mo 0.15 ~ 0.25

 

Mechanical properties of aisi 9840 Round Steel

Tensile strength σb (MPa) : ≥980(100)

Yield strength σs (MPa) : ≥835(85)

Elongation δ5 (%) : ≥12

Reduction rate of cross-section (%) : ≥55

Impact work Aku (J) : ≥78

Impact toughness αkv (J/cm&sup2) : ≥98(10)

Sample size: sample blank size is 25mm

Heat treatment: quenching 850 degrees; Coolant: oil; Tempering temperature 600 degrees; Coolant: water, oil);

Steel annealing or high temperature tempering supply state Brinell hardness GBW≤269;

 

aisi 9840 Round Steel Applicable scope editorial broadcast

Generally, important parts with high strength and good plasticity are made. Important parts with special performance requirements are made after nitriding, such as shafts, gears, fasteners, etc.

Theoretical weight editor broadcast

Round steel: Weight (kg)=0.00000785 (bonding steel density) * Radius * Radius *3.14* Length (mm)

Flat steel/sheet: Weight (kg)=0.00000785* Thickness * side width * length Pipe: Weight (kg)=0.02466× wall thickness ×(OD -- wall thickness)