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Categories | Alloy Structural Steel |
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Brand Name: | Zhanlu |
Model Number: | Round Bar |
Place of Origin: | China |
MOQ: | Consultation |
Price: | Consultation |
Payment Terms: | L/C, T/T |
Supply Ability: | Consulting service |
Delivery Time: | 5-8 workdays |
Packaging Details: | Conventional packaging |
Name: | ASTM 4118 Alloy Structural Steel |
Length: | 2.5m-10m |
Material: | ASTM 4118 |
Diameter: | 6.0mm-1200mm |
Characteristic: | Very high strength and toughness |
Shape: | Round Bar |
Company Info. |
Wuxi Zhanlu International Trade Co., Ltd |
Verified Supplier |
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Product List |
ASTM4118 has high hardenability, no temper brittleness, good weldability, little tendency to form cold crack, good machinability and cold strain plasticity. ASTM4118 is generally used in quenched and tempered or carburized and quenched conditions, and is used to manufacture high-pressure pipes and various fasteners, and higher carburized parts, such as gears and shafts, which work in non-corrosive media and media with a working temperature of less than 250 ℃ and containing nitrogen and hydrogen mixture.
Supply Form & Size
Form of Supply | Size(mm) | Length(mm) |
Round bar | 6.0mm-1200mm | 2.5m-10m |
Chemical Composition&Related Specifications
Grade | C | Si | Mn | P | S | Cr | Mo |
4118 | 0.18~0.23 | 0.15~0.35 | 0.70~0.90 | ≤0.035 | ≤0.040 | 0.40~0.60 | 0.08~0.15 |
Brand comparison table
AISI/SAE | DIN/EN | BS | JIS/KS | China |
4118 | 18CrMo4(1.7243) | 18CrMo4(1.7243) | SCM420 | 20CrMo |
Mechanical Property
tensile strength σb (MPa) | ≥885(90) |
yield strengthσs (MPa) | ≥685(70) |
elongation δ5 (%) | ≥12 |
Reduction of area ψ (%) | ≥50 |
Impact energy Akv (J) | ≥78 |
Impact toughness value αkv (J/cm2) | ≥98(10) |
hardness | ≤197HB |
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