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|Product Name:||AISI 4140/42CrMo4/SCM440 Hot Rolled Steel Bar ,Flat Steel Bar, Casing Hardened Flat Bar, Low MOQ, Surface Can Machined||Material Grade:||AISI 4140/42CrMo4/SCM440|
|Delievry Condition:||Annealed/hot Rolled/cold Drawn/quenched&tempered||Surface:||Black/machined|
|UT:||SEP 1921-84 Class C/c D/d E/e||Certificate:||ISO/BV/SGS/MTC|
|Length:||As Your Request||Process:||EAF/IF/ESR+ LF+ VD|
AISI 4140/42CrMo4/SCM440 Hot Rolled Steel Bar ,Flat Steel Bar, Casing Hardened Flat bar, Low MOQ, Surface can machined
Flat steel flat bar point to the the steel that the width is 12-300 mm, the thickness is 4-60mm
thick, and cross section is rectangle with the edge of a little pure steel.
Main use: flat as timber can be used in the system of hoop iron parts, tools and machinery.
It also can be used as frame structure and escalator.
Flat Bar is used for general fabrication, making structures and frames.
Mild Steel Flat Bar can be easily cut and drilled, and is particularly suited to welding.
Examples of its use include furniture making, machinery manufacturing,
shipbuilding, railway spare parts, iron towers, steel structures, and boilers.
|*Dimensions can be customized|
|1.Annealing:heating temperature 840-860°C ,heat preservation 2 hours ,cool slowly in furnace,|
|hardness ≤ 217 HBS.|
|2.Normalizing:heating temperature 850-900°C ,air cooling .|
|3.High temperature tempering :heating temperature 680-700°C,air cooling,hardness ≤ 217 HBS.|
|Quenching and tempering|
|1.Quenching: heating temperature 840-880°C,oil cooling, hardness ≥ 53 HRC .|
|Tempering : heating temperature 450-650°C ,air cooling ,hardness 25-40 HRC.|
|2.Induction quenching :heating temperature 900°C,emulsion cooling,surface hardness ≥ 53 HRC .|
|Tempering :160-180°C,air cooling ,hardness ≥ 50 HRC .|
|Process||EAF+LF+VD+Forging+(Rolling)+Annealing Condition (optional)|
|Delivery Condition||Hot forged+Rough machined/turned surface|
|Technical Data||According to customer’s requirements of chemical composition, physical properties and mechanical testing|
|Ultrasonic Test||Ultrasonic test according to SEP 1921-84 G3 D/d E/d|
|Hot extrusion dies, forging die forging hammer, forging press die, precision forging die well as aluminum, copper and alloys die-casting mold.|
Product name: 826M40 Hot Rolle Steel Bar,Alloy Steel Round Bar With Peeled& Turned Surface, Size 10-350mm, Quenched & Tempered
Material grade: X9940/EN26/40NiCrMo10 4/DIN1.6745/826M40
Delivery condition: hot rolled/cold drawn/annealed/quenched&temperd
Surface condition: black surface/peeled/polished/turned/rough turned