Alloy Steel/Steel Plate/Steel Sheet/Steel Bar/Steel Flat Bar DIN1.7147 SAE5120 20mncr5

• Type: Alloy Steel Bar
• Standard: AISI, DIN, GB
• Composition: Ferrous Steel Scrap
• Technique: Hot Forged, or Hot Rolled
• Shape: Round, Flat or Square
• Surface Treatment: Black Surface, Grinded, Peeled, Milled, Polished
• Model NO.: DIN1.7147 SAE5120 20MnCr5
• Special Use: Alloy Structural Steel
• Application: Structural Steel Bar
• Size Range: Round Bar:Dia12~420mm Flat Bar:2~420 X 30~1500mm
• Quality Standard: BS En 10084 2008 Case Hardening Steels
• Smelting Process: Ef, Ef/Eaf+Lf+Vd, Ef/Eaf+ESR
• Delivery Condition: Hot Rolled, Forged, Annealed, Quenched and Tempered
• Surface Condition: Black Surface, Grinded, Peeled, Milled, Polished
• Transport Package: Seaworth Packing
• Specification: Round Bar: Dia12~420mm Flat Bar: 2~420 X 30~1500mm
• Trademark: CHENGQUAN
• Origin: Huangshi, Hubei
• HS Code: 7228100000
• Production Capacity: 5000tons/Year

Product Description

Similar Grade

DIN	Material No.	AFNOR	SAE	UNI
20MnCr5	1.7147	20MC	5120	20MnCr5

Quality Standard
BS EN 10084 2008 Case hardening steels

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

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

HEAT TREATMENT AND HOT PLASTIC DEFORMATION TEMPERATURES

Process	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	/

Applications
Alloyed case hardening steel for parts with a required core tensile strength of 1000 - 1300 N/mm² and good wearing resistance as boxes, piston bolts, spindles, camshafts, gears, shafts and other mechanical controlling parts.

Fushun Special Steel LTD CO

Fushun Metal is a large special steel manufacturer and supplier. We are metal experts and have been providing quality customer service and products since 1998.

At Fushun Metal, we supply a wide range of metals for a variety of applications. Our products/stock includes: stainless steel, alloy steel, spring steel, tool steel, high speed steel, mould steel, nickel alloy.

Our hot rolled and cold rolled steel is available in a wide range of shapes including: bars, tubes, sheets and plates. We can cut metal to your exact specifications.

Send your inquiry information to us and get a free quotation today!