1040, 1045 Steels

1040, 1045 Steels

Steel name: 104, 1045
Diagram No.: 206
JIS designation: G4051, S40C
BS designation: EN8
AISI/SAE designation: 1040/45
Chemical composition in weight %: 0.40% C, 0.35% Si, 0.60-0.90% Mn, max. 0.050% P, max. 0.050% S
Steel group: Structural steels
Properties: AISI 1040 is suitable for surface hardening by flame or induction methods.
Applications: All general engineering applications requiring a higher strength than mild steel such as shafts, axles, bolts, etc.
Reference: Not shown in this demo version.

Heat Treatment
Hardening in oil: 830-860^oC
Tempering: See the diagram
Diagram note: Test specimen square 50 mm, quenched from 860^oC/oil.

Diagram Tempering Temperature - Mecahnical Properties

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Other Steel Data links
Carbides in Steel
CCT and TTT Diagrams of Steels
CCT and TTT Diagram Calculating Service
Hardenability Diagrams of Steels
Hardenability Calculating Service
Macro Defects in Steel
Metal Etchants
Non-Metallic Inclusions in Steel
Semiconductor Etchants

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