Sncm439 Round Steel Sncm439 Steel Plate Sncm439 Steel Pipe Sncm439 Alloy

• Type: Steel Slag
• Standard: ASTM
• Composition: Ferrous Steel Scrap
• Technique: Forged
• Shape: Bar
• Surface Treatment: Color Coated
• Model NO.: SNCM439 round steel SNCM439 steel plate SNCM439
• Special Use: High-strength Steel Plate, Wear Resistant Steel, Silicon Steel, Cold Heading Steel, Free Cutting Steel
• Application: Die Steel Bar
• Transport Package: Wooden Box
• Specification: din20mm--500mm
• Trademark: taixie
• Origin: Chian
• HS Code: 4101201110
• Production Capacity: 60000kgs

Product Description

SNCM439 round steel

SNCM439 steel plate

SNCM439 steel pipe

SNCM439 alloy
 

SNCM439 round steel (commonly quenched steel)\ high hardenability Main uses: high strength parts such as aero engine shaft, shaft, gear, fastener and so on.

Chemical composition of SNCM439 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 SNCM439 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 value αkv (J/cm²) : ≥98(10)

SNCM439 round steel 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;

Scope of application

SNCM439 round steel is generally made of important parts with high strength and good plasticity. After nitriding, important parts with special performance requirements are made, such as shafts, gears, fasteners, etc.

Theoretical weight editor broadcast

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

SNCM439 round flat steel/plate: Weight (kg)=0.00000785* Thickness * side width * length

SNCM439 round Steel pipe: Weight (kg)=0.02466× wall thickness ×(outside diameter -- wall thickness)