DIN 1.2360 DC53 Cold Worked Steel Bar

• Type: Cold Work
• Standard: ASTM, AISI, GB, DIN
• Certification: ISO
• Surface Treatment: Coated
• Technique: Hot Rolled
• Application: Mold & Dies
• Model NO.: DC53
• Special Use: Cutting Tools, Cutters in Common Steel, High-strength Steel Plate
• Stock: Stock
• Delivery Condition: Hot Rolled
• Transport Package: Nude Packing
• Trademark: boz
• Origin: China
• Production Capacity: 5000tons/Month

Product Description

Description

DIN 1.2360 DC53 Cold Worked steel bar
 
Features
UTOP33, originates from SUPER technology and is a type of hot work tool steel with high quality. Its main features includes high purity, homogeneous annealing structure, excellent impact property.
UTOP33 is applied for making hot extrusion die, hot forging die and large-sized plastic mould which has high demand on toughness, and also need polishing or dermatoglyph treatment.
UTOP33 is strictly inspected as per standard NADCA#207-2011, and other properties also can be tested as customers' requirement.

Equivalence

1. Steel Grade: DIN 1.2360 DC53
2. Product name: DIN 1.2360 DC53 Cold Worked Seamless Mould Steel Tube
3. Length: 20m maximum 
4. Outside diameter: 3mm - 219mm
5. Wall thickness: 0.5 - 35mm
 
Comparision of Steel Grades:

DIN 1.2360	Comparision of steel grades
	GB	Cr8Mo2SiV
	ASTM	DC53

Chemical Composition:  

Standard	Grade	C	Si	Mn	P	S	Cr	Mo	V
GB	Cr8Mo2SiV	0.45-0.50	0.70-0.90	0.35-0.45	0.020 (MAX)	0.005 (MAX)	7.30-7.80	1.30-1.50	1.30-1.50

Mechanical Properties:Yield
Rp0.2 (MPa)Tensile
Rm (MPa)Impact
KV/Ku (J)Elongation
A (%)Reduction in cross section on fracture
Z (%)As-Heat-Treated ConditionBrinell hardness (HBW)

427 (≥)	836 (≥)	31	14	32	Solution and Aging, Annealing, Ausaging, Q+T,etc	331

Physical Properties:Temperature
(°C)Modulus of elasticity
(GPa)Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) andThermal conductivity
(W/m·°C)Specific thermal capacity
(J/kg·°C)Specific electrical resistivity
(Ω mm²/m)Density
(kg/dm³)Poisson's coefficient, ν

22	-	-			0.42	-
969	958	-	32.3	233		-
125	-	12	24.2			222	342

 

Chemical Composition (in weight %)

C	Si	Mn	Cr	Mo	Ni	V	W	Others
0.38	0.40	0.40	5.00	2.95	-	0.50	-	-

Description
Hot work tool steel. Secondary hardening steel with high strength and wear resistance in hot. Good tempering resistance. High hardenability and thoughness. Tools can be water cooled.

Applications
Wear resisting tools, pressure die casting tools, pressing tools for light and heavy metal. For the highest requirements we recommend UTOPMO7 ESR EFS. 

Physical properties (avarage values) at ambient temperature
Density [g/cm³]: 7.83
Thermal conductivity [W/m.K]: 25.0 

Thermal conductivity [W/m.K]

20^oC	500^oC	600^oC
25.0	28.5	29.3

Coefficient of Linear Thermal Expansion 10^-6 oC^-1

20-100^oC	20-200^oC	20-300^oC	20-400^oC	20-500^oC	20-600^oC	20-700^oC
11.5	12.0	12.2	12.5	12.9	13.0	13.2

Continuous Cooling Transformation (CCT) Diagram

Click the image to enlarge the diagram.

Time-Temperature Transformation (TTT) Diagram

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Soft Annealing
Heat to 800-840^oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 235.

Stress Relieving
Stress relieving to remove machining stresses should be carried out by heating to 650^oC, holding for one hour at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.

Hardening
Harden from a temperature of 1030-1080^oC followed by air, oil or warm bath (500-550^oC) quenching. Hardness after quenching is 53-57 HRC.

Tempering
Tempering temperature: See the table bellow.

Tempering Temperature (^oC) vs. Hardness (HRC) vs. Tensile Stregth (N/mm²)

100^oC	200^oC	300^oC	400^oC	500^oC	550^oC	600^oC	650^oC	700^oC
57	55	54	53	55.5	56	53	43	31
2140	1980	1910	1845	2010	2050	1845	1360	995

Tempering Diagram

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Diagram Tempering Temperature - Mechanical Properties

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Diagram Tempering Temperature - Mechanical Properties

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Diagram Tempering Temperature - Mechanical Properties

Click the image to enlarge the diagram.

Forging
Hot forming temperature: 1080-900^oC. 

Machinability
No data.

Forms manufactured: Please see the  Dimensional Sales Program. 

Disclaimer
The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other puposes. There is no representation that the recipient of this literature will receive updated editions as the become available.

Delivery Condition
EAF+LF+VD+(ESR), Hot rolled or Forged, Annealed, EFS, Hardness≤235HB, Un-machined or
Machined surface (Peeled, Turned, Milled, Grinded), UT 100% Passed
 
Characteristics
Hot work tool steel featuring a fine combination of heat checking resistance, hot strength and impact strength; admits water cooling.
 
Applications
1. Highly stressed hot work tools, mainly for the processing of heavy alloys, such as mandrels, dies
and containers for metal tube and rod extrusion; hot extrusion tools;
2. Tools for the manufacture of hollows, screws, rivets, nuts and bolts.
3. Die casting tools, forming dies, die inserts, hot shear blades.
 
Heat Treatment
Annealing
750 to 800°C (1382 to 1472°F)
Slow controlled cooling in furnace at a rate of 10 to 20°C/hr (50 to 68°F/hr) down to approx. 600°C (1112°F), further cooling in air. Hardness after annealing: max. 235 HB.
           
Stress relieving
600 to 650°C (1112 to 1202°F)
Slow cooling in furnace; intended to relieve stresses set up by extensive machining, or in complex shapes. After through heating, hold in neutral atmosphere for 1 - 2 hours.
 
Hardening
1010 to 1050°C (1850 to 1922°F)
Oil, salt bath (500 - 550°C / 932-1022°F), air
Holding time after temperature equalization: 15 to 30 minutes.
Obtainable hardness: 52 - 56 HRC
 
Tempering
Slow heating to tempering temperature immediately after hardening / time in furnace 1 hour for each 20 mm of work piece thickness, but at least 2 hours / cooling in air. It is recommended to temper at least twice. A third tempering cycle for the purpose of stress relieving may be advantageous. 
1st tempering approx. 30°C (86°F) above maximum secondary hardness.
2nd tempering to desired working hardness. The tempering chart shows average tempered hardness values. 
3rd for stress relieving at a temperature 30 - 50°C (86 to 122°F) be low highest tempering temperature.
 

What we can offer
What we can offer?
 
We offer a wide range of steel products in a wide variety of dimensions and executions, acc.to the common international specifications or customerized.
Machining and heat treatment are available.
Also, we advise you in choosing the right materials.
 
Shape Available
Solid round bar
Flat bar
Square bar
Hexagon bar
Block
Plate
Sheet
Wire rod
Strip

 

	AISI	DIN	JIS	Stock	Application
Hot Work Tool Steel	H11	1.2343	SKD6	√	Die Casting Dies,Extrusion Dies, Hammer Dies, Ram Dies, Forging Dies etc.
	H13	1.2344	SKD61	√
	H10	1.2365	SKD7
	--	1.2367	--
	L6	1.2714 / 1.2713	SKT4	√
	H12	1.2606	SKD62
	H21	1.2581	SKD5	√
Cold Work Tool Steel	D3	1.2080	SKD1	√	Cutting Tools, Punching Tools, Shear Bladers, Reamers, Thread Rolling Dies, Calipers, Sockets etc.
	--	1.2601	~SKD11	√
	D2	1.2379	~SKD11	√
	--	1.2379 MOD	DC53 (Daido)	√
	D6	1.2436	--
	O1	1.2510	SKS3	√
	O2	1.2842	--
	A2	1.2363	SKD12
	S1	1.2550	--
	S7	1.2357	--
	--	1.2767	SKT6
	L2	1.2210	--
Plastic Mould Steel	P20	1.2311	--	√	Mold Base,           Core & Cavity,         Bumper Mold             etc.
	P20+Ni	1.2738	--	√
	P20+S	1.2312	--	√
	--	1.2316	--
	420	1.2083	SUS420J2	√
	--	--	NAK80 (Daido)	√
Alloy Steel	4120	25CrMo4 / 1.7218	SCM420		Shafts, Gears, Drillers, Chains, Bolts, Nuts, Pins, Suds, Keys, Bites, Crankshafts, Connecting Rods, Came, Couplings  etc.
	4135	34CrMo4 / 1.7220	SCM435
	4130	34CrMo4 / 1.7220	SCM430	√
	4140	42CrMo4 /        42CrMoS4 /                1.7225	SCM440	√
	4142	41CrMo4 / 1.7223	SCM440
	4145H	--	--
	4330V	--	--
	4340	34CrNiMo6 / 1.6582	SNCM439
	5115	16MnCr5 / 16MnCrS5 / 1.7131
	5120	20MnCr5 / 20MnCrS5 / 1.7147	SMnC420H
	5140	41Cr4 / 41CrS4 / 1.7035	SCr440	√
	8620	21NiCrMo2 / 1.6523	SNCM220
	8640	40NiCrMo2-2 / 1.6546	SNCM240
	--	18CrNiMo7-6 / 17CrNiMo6 / 1.6587	--
	9840	36CrNiMo4 / 1.6511	--
	E71400	41CrAlMo7-10 / 1.8509	SACM1
	--	34CrAlNi7 / 1.8550	--
Bearing Steel	E52100	100Cr6 / 1.3505	SUJ2	√	Bearing, Shafts etc.
	--	100CrMn6 / 1.3520	--
	--	100CrMo7-3 / 1.3536	--
Spring Steel	5155	55Cr3 / 1.7176	SUP9		Springs
	6150	51CrV4 / 1.8159	SUP10
	9261	60CrSi7 / 1.7108	--
Carbon Steel	1010	CK10 / C10E / 1.1121	S10C		Shafts, Chains, Bolts, Nuts, Pins, Suds, Keys, Bites, Came, Couplings  etc.
	1020	C22 / 1.0402	S20C	√
	1040	CK40 / C40E / 1.1186	S40C	√
	1045	CK45 / C45E / 1.1191	S45C	√
	1050	CK50 / C50E / 1.1206	S50C	√
	1055	CK55 / C55E / 1.1203	S55C
	1064	CK60 / C60E / 1.1221	S58C
High Speed Tool Steel	M2	1.3343	SKH51	√	Reamer,       End-mill,          Hob, Cutter, Bite, Drill, Punch, Tap, Brooch etc.
	M7	1.3348	--
	M42	1.3247	SKH59	√
	M35	1.3243	SKH55	√
	T1	1.3355	SKH2
	T15	1.3202	--
	T42	1.3207	SKH57

 
Note:
1). √ means we have stoc
2). Delivery Condition:
Smelting: EAF+LF+VD (+ESR)
Making: Hot rolled, Cold rolled, Forged, Cold Drawn
Heat Treatment: Untreated, Annealing, N+T, Q+T
Surface: Black, Peeled, Turned, Milled, Grinded, Polished
 
Packing & Shipping
Hot keywords:high quality