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1.7149 / 20MC / 5120 / 20MnCr5 Hot Rolled Bar , High Strength Alloy Round Bar

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1.7149 / 20MC / 5120 / 20MnCr5 Hot Rolled Bar , High Strength Alloy Round Bar

Brand Name : Unite Steel

Model Number : Dia : 10-350mm

Certification : MTC/SGS/BV/ISO

Place of Origin : China

MOQ : MOQ : 2-3 Ton

Price : USD 600-950 Ton

Payment Terms : L/C, D/A, D/P, T/T

Supply Ability : 3000 Ton per Month

Delivery Time : Within 15-45 days

Packaging Details : Standard seaworthy packing or as your request

Product name : 20MnCr5/1.7147/1.7149/20MC/5120/20MnCr5 Hot Rolled Steel Bar , High Strength Alloy Roun Bar

Material grade : 20MnCr5/1.7147/1.7149/20MC/5120/20MnCr5

Delivery condition : Annealed/hot rolled/cold drawn/quenched & tempered

Surface : Black/machined/peeled/polished/turned

Shape : Round section

Process : EAF/LD+LF+VD+INGOT+HOT ROLLED/FORGED+Spheroidizing Annealing+UT+CUT

Ultrasonic test : according to SEP 1921-84 3C/c

Certificate : MTC/SGS/BV/ISO

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20MnCr5/1.7147/1.7149/20MC/5120/20MnCr5 Hot Rolled Steel Bar , High Strength Alloy Roun Bar

 

1.Specification:

Dia:10-350mm

Length:as your request.

 

2.All Grades Comparison:

DIN 17210 Material No. AFNOR SAE UNI 7846
20MnCr5 1.7147/1.7149 20MC 5120 20MnC

 

3.Chemical Composition(%)

C Mn Si P S Cr
0.17–0.22 1.10–1.40 0.40 max 0.035 max 0.035 max 1.00–1.30

 

4.Mechanical Properties( T=20°C if not differently stated )

Heat treatment state Diameter(mm) Rm (Mpa)
QUENCHED AND TEMPERED 16 max 1200 min
QUENCHED AND TEMPERED 16-40 1000 min
QUENCHED AND TEMPERED 40-100 800 min
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HEAT TREATMENT AND HOT PLASTIC DEFORMATION TEMPERATURES

- TEMPERATURE ° C Cooling Medium
Forging or hot rolling 850-1100 air
Normalizing 840-870 air
Soft Annealing 650-700 furnace 217HB max
Carburising 880-980 /
Core hardening 860-900 oil
Intermediate annealing 650-700 /
Case hardening 780-820 oil
Tempering 150-200 /
1.7149 / 20MC / 5120 / 20MnCr5 Hot Rolled Bar , High Strength Alloy Round Bar
1.7149 / 20MC / 5120 / 20MnCr5 Hot Rolled Bar , High Strength Alloy Round Bar

 

 

 


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hot rolled round bar

      
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