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4 - 60mm Thickness Casing Hardened Steel Flat Bar For Railway Spare Parts

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4 - 60mm Thickness Casing Hardened Steel Flat Bar For Railway Spare Parts

China 4 - 60mm Thickness Casing Hardened Steel Flat Bar For Railway Spare Parts supplier
4 - 60mm Thickness Casing Hardened Steel Flat Bar For Railway Spare Parts supplier 4 - 60mm Thickness Casing Hardened Steel Flat Bar For Railway Spare Parts supplier

Large Image :  4 - 60mm Thickness Casing Hardened Steel Flat Bar For Railway Spare Parts

Product Details:

Place of Origin: China
Brand Name: Unite Steel
Certification: ISO/BV/SGS/MTC
Model Number: Flat bar

Payment & Shipping Terms:

Minimum Order Quantity: MOQ : 2-3 Ton
Packaging Details: Standard seaworthy packing
Delivery Time: Within 15-45 days
Payment Terms: L/C, D/A, D/P, T/T
Supply Ability: 3000 Ton per Month
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Detailed Product Description
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

 

1.Application:

 

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.

 

2.Specification:

Thickness:3-50mm

Width:20-600mm

4 - 60mm Thickness Casing Hardened Steel Flat Bar For Railway Spare Parts

 

Comparative standard Grade C Si Mn Cr Mo V W P S Ni
GB 42CrMo 0.38-0.45 0.17-0.37 0.50-0.80 0.80-1.20 0.15-0.25     max0.035 max0.035  
AISI 4140                    
JIS SCM440                    
DIN 42CrMo4/1.7225 0.41 0.20 0.75 1.05 0.23     0.03 0.03  
Dimensions
Round bar
Dia:16mm~700mm Length:2m~6m
Flat bar
Thickness:20mm~500mm Length:2m~12m
*Dimensions can be customized
Heat Treatment
 
Perheat treatment
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 .
 
Detail information
Process EAF+LF+VD+Forging+(Rolling)+Annealing Condition (optional)
Delivery Condition Hot forged+Rough machined/turned surface
MOQ 1 ton
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
Applications
Hot extrusion dies, forging die forging hammer, forging press die, precision forging die well as aluminum, copper and alloys die-casting mold.

 

4 - 60mm Thickness Casing Hardened Steel Flat Bar For Railway Spare Parts

4 - 60mm Thickness Casing Hardened Steel Flat Bar For Railway Spare Parts

Contact Details
SHANGHAI UNITE STEEL

Contact Person: Neya

Tel: +8615261689453

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