Special Steel Manufacturers, Suppliers in

QCM 8

SANYO cold work tool steel
is a high-carbon high-chromium alloy steel with extremely high hardness, which is suitable for toughness and has a tempering hardening effect. It is a representative of multi-purposes such as stamping dies and plastic dies. It surpasses SKD11 in hardness, toughness, fatigue strength and wear resistance, greatly extending the life of the mold.

1.Ingredient: Manufacturer's exclusive secret recipe
2.Equivalent steel:

Equivalent steel	JIS	AISI	DIN	GB
	SKD11 improved	D2 improved

3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
830-880 Slow Cooling		1000-1050 Air Cooling	500-550 Air Cooling 2 times

4.Mechanical properties:

Yielding Strength (kgf/mm²)	Tensile Strength (kgf/mm²)	Elongation (%)	Section reduction (%)	Charpy	Hardness (HRC)
					55~62

5.Origin Place:Japan

QDN

SANYO hot work tool steel
QDN is a hot-working die-casting mold steel developed by improving the chemical composition of the traditional JIS SKD61. In order to effectively increase the life of the mold and reduce the cost, QDN is made of the best alloy design compared to the traditional H13 and SKD61 materials. Better toughness, thermal crack resistance and corrosion resistance.

1.Ingredient: Manufacturer's exclusive secret recipe
2.Equivalent steel:

Equivalent steel	JIS	AISI	DIN	GB
	SKD61 improved	H13 improved

3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
800-850 Slow Cooling		1020-1050 Air Cooling	550-650 Air Cooling 2 times

4.Mechanical properties:

Yielding Strength (kgf/mm²)	Tensile Strength (kgf/mm²)	Elongation (%)	Section reduction (%)	Charpy	Hardness (HRC)
					40~52

5.Origin Place:JAPAN

Industrial Stainless Steel

stainless steel
The most widely used steel for industrial use, such as general connecting rods, joints, crankshafts, screws, etc.

1.Ingredient:

Steel Grade	C	Si	Mn	P	S
SUS420J2	0.26-0.40	0.15-0.35	0.60-0.90	<0.030	<0.035

2.Equivalent steel:
N/A
3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
		1000-1050 degree	200-500 degree

4.Mechanical properties:

Yielding Strength (N/mm²)	Tensile Strength (N/mm²)	Elongation (%)	Section reduction (%)	Charpy	Hardness (HBW)
>540	>740	>12	>40	>29	>217

5.Origin Place:Taiwan ,China

S45C(BD)

Advanced tungsten alloy tool steel
S45C(BD) has the same chemical composition as S45C, except that the surface is glossy. Commonly used in the manufacture of stamping products, casings, automotive sheet metal, air compressors, pump pistons, impellers, mechanical shafts, worms, gears, crankshafts, machine tool spindles, rollers, bench tools and other wear-resistant, high-strength products.

1.Ingredient:

Steel Grade	C	Si	Mn	P	S
S45C(BD)	0.42-0.48	0.15-0.35	0.60-0.90	<0.03	<0.035

2.Heat treatment:

Normalization	Annealing	Quenching	Tempering
870-880 Air Cooling	880 Furnace Cooling	820-870 Water Cooling	550-650 Quick Cooling

3.Mechanical properties:

Tensile Strength (kgf/mm²)	Hardness (HB)
58	167-229

4.Origin Place:Taiwan

DC53

Daido cold die steel
Precision stamping dies, cold forging dies, screw hobbing dies, and tools for plastic deformation of difficult-to-machine materials

1.Ingredient:

Steel Grade	C	Si	Mn	P	S	Cr	Mo	V
DC53	0.90-1.00	some	some	<0.030	<0.030	7.0-9.0	0.80-2.20	some

2.Equivalent steel:

DAIDO	JIS	AISI	DIN
DC53	SKD11 improved	D2 improved	1.2379 improved

3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
	830-880 Slow Cooling	1000-1040 Air Cooling	1^st 180-220 2^nd 520-530

4.Mechanical properties:

Annealing Hardness	Hardness (HRC)
225	62-63

5.Origin Place:Japan

Cold Worked Steel

Cold working die steel
It is a high-carbon high-chromium alloy steel with extremely high hardness, which is suitable for toughness and has a tempering hardening effect. It is a representative of multi-purposes such as stamping dies and plastic dies.

1.Ingredient:

Steel Grade	C	Si	Mn	P	S	Cr	Mo	V
SKD11	1.40-1.60	0.15-0.35	0.30-0.60	<0.025	<0.010	11.0-13.0	0.20-0.50	0.80-1.20

2.Equivalent steel:

Equivalent steel	JIS	AISI	DIN	GB
	SKD11	D2	X165CrMoV12	Cr12MoV

3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
	830-880 Slow Cooling	1000-1050 Air Cooling	150-250 Air Cooling

4.Mechanical properties:

Annealing Hardness	Hardness (HRC)
20	58

5.Origin Place:Japan,China,Korea

Hot Worked Steel

Hot working die steel
It can resist the corrosion of molten aluminum, magnesium and zinc and the change of heat. It is suitable for the production of aluminum, magnesium and zinc alloy die-casting aluminum extrusion or hot-casting work, plastic reamer, grooving knife and hot forging punch. Because it adds chromium, molybdenum and vanadium, it has strong thermal toughness and can withstand high temperature and is not easily deformed.

1.Ingredient:

Steel Grade	C	Si	Mn	P	S	Cr	Mo	V
SKD61	0.36-0.42	0.8-1.20	0.25-0.50	<0.030	<0.030	4.8-5.5	1.00-1.50	0.80-1.20

2.Equivalent steel:

Equivalent steel	JIS	AISI	DIN	GB
	SKD61	H13	X40CrMoV51	4Cr5MoSiV1

3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
	820-870 Air Cooling	1000-1050 Oil Cooling	550-650 Air Cooling

4.Mechanical properties:

Yielding Strength (N/mm²)	Tensile Strength (N/mm²)	Elongation (%)	Section reduction (%)	Charpy	Hardness (HRC)
					50~53

5.Origin Place:Japan,China,Korea

SNCM220

Nickel chrome molybdenum alloy steel
Shafts, gears, pistons, auto parts, locomotive parts, various mechanical parts. Carburizing heat treatment will make the whole gear become super hard and tough, full of wear resistance, and can withstand high impact load

1.Ingredient:

Steel Grade	C	Si	Mn	P	S	Ni	Cr	Mo
SNCM220	0.17-0.23	0.15-0.35	0.60-0.90	<0.030	<0.030	0.40-0.70	0.40-0.65	0.15-0.30

2.Equivalent steel:

Equivalent steel	JIS	AISI	DIN	GB
	SNCM220	8620	21NiCrMo2	20CrNiMo

3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
850-900 Air Cooling	850 Furnace Cooling	1st.850-900 Oil Cooling 2nd.800-850 Oil Cooling	150-200 Air Cooling

4.Mechanical properties:

Yielding Strength (kgf/mm²)	Tensile Strength (kgf/mm²)	Elongation (%)	Section reduction (%)	Charpy	Hardness (HBW)
	>85	>17	>40	>69	248~341

5.Origin Place:Japan,China,Korea

SCM440

Chromium molybdenum alloy steel
Widely used in shafts, guide columns, bolts, spindle sleeves, rods, dents, steam turbines and other components.

1.Ingredient:

Steel Grade	C	Si	Mn	P	S	Ni	Cr	Mo
SCM440	0.38-0.43	0.15-0.35	0.60-0.90	<0.030	<0.030	<0.25	0.90-1.20	0.15-0.30

2.Equivalent steel:

Equivalent steel	JIS	AISI	DIN	GB
	SCM440	4140	42CrMo4	42CrMo

3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
830-880	830 Furnace Cooling	830-880 Oil Cooling	530-630 Quick Cooling

4.Mechanical properties:

Yielding Strength (kgf/mm²)	Tensile Strength (kgf/mm²)	Elongation (%)	Section reduction (%)	Charpy	Hardness (HBW)
>85	>100	12	45	59	285~352

5.Origin Place:Taiwan,China,Korea

SACM645

Aluminum chrome molybdenum alloy steel
Steel for nitriding treatment, used for cylinder liner, hydraulic parts, compressor parts, screw and feeding tube most suitable for plastic molding machine, its composition contains aluminum element, after nitriding treatment, the surface nitride layer hardness can reach very much High (HRC=63)

1.Ingredient:

Steel Grade	C	Si	Mn	P	S	Al	Cr	Mo
SACM645	0.40-0.50	0.15-0.50	<0.60	<0.030	<0.030	0.70-1.20	1.30-1.70	0.15-0.30

2.Equivalent steel:

Equivalent steel	JIS	AISI	DIN	GB
	SACM645	7140	41CrAlMo7	38CrAlMo

3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
900 Air Cooling	750-850 Furnace Cooling	880-930 Oil Cooling	680-720 Quick Cooling

4.Mechanical properties:

Yielding Strength (kgf/mm²)	Tensile Strength (kgf/mm²)	Elongation (%)	Section reduction (%)	Charpy	Hardness (HBW)
>70	85	>15	>50	>98	241~302

5.Origin Place:Japan,China

SCM415

Chromium molybdenum alloy steel
Commonly used in various shafts, spindles, mechanical parts, pistons and gears, etc.

1.Ingredient:

Steel Grade	C	Si	Mn	P	S	Ni	Cr	Mo
SCM415	0.13-0.18	0.15-0.35	0.60-0.90	<0.030	<0.030	<0.25	0.90-1.20	0.15-0.25

2.Equivalent steel:

Equivalent steel	JIS	AISI	DIN	GB
	SCM415	4150	15CrMo5	15CrMo

3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
850-900 Air Cooling	850 Furnace Cooling	1st 850-900 Oil Cooling 2nd 800-850 Oil Cooling	150-200 Air Cooling

4.Mechanical properties:

Yielding Strength (N/mm²)	Tensile Strength ( kgf/mm²)	Elongation (%)	Section reduction (%)	Charpy	Hardness (HBW)
	>85	>16	>40	>69	235~321

5.Origin Place:Taiwan,China,Korea

SCM420

Chromium molybdenum alloy steel
SCM420 is a low carbon alloy structural steel suitable for carburizing heat treatment. After carburizing, the surface hardness of the steel is improved, so that the wear resistance is improved, but the center part still retains toughness and is more resistant to impact and load. It is often used in a variety of special wear and load workpieces such as motor shaft, spindle, mechanical parts, pistons and gears.

1.Ingredient:

Steel Grade	C	Si	Mn	P	S	Ni	Cr	Mo
SCM420	0.18-0.23	0.15-0.35	0.60-0.90	<0.030	<0.030	<0.25	0.90-1.20	0.15-0.25

2.Equivalent steel:

Equivalent steel	JIS	AISI	DIN	GB
	SCM420	4118	25CrMo4	20CrMo

3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
850-900 Air Cooling	850 Furnace Cooling	1st 850-900 Oil Cooling 2nd 800-850 Oil Cooling	150-200 Air Cooling

4.Mechanical properties:

Yielding Strength (kgf/mm²)	Tensile Strength (kgf/mm²)	Elongation (%)	Section reduction (%)	Charpy	Hardness (HBW)
	>95	>14	>40	>59	262~341

5.Origin Place:Taiwan,China,Korea

SNCM439

Nickel Chrome Molybdenum Alloy Steel
Shafts, crankshafts, gears, pistons, automotive parts, locomotive parts, power screws and nuts

1.Ingredient:

Steel Grade	C	Si	Mn	P	S	Ni	Cr	Mo
SNCM439	0.36-0.43	0.15-0.35	0.60-0.90	<0.030	<0.030	1.60-2.00	0.60-1.00	0.15-0.30

2.Equivalent steel:

Equivalent steel	JIS	AISI	DIN	GB
	SNCM439	4340	40NiCrMo6	40CrNiMoA

3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
820-870 Air Cooling	820 High Temperature Annealing 870 Low Temperature Annealing	820-870 Oil Cooling	580-680 Quickly cooling

4.Mechanical properties:

Yielding Strength (N/mm²)	Tensile Strength (N/mm²)	Elongation (%)	Section reduction (%)	Charpy	Hardness (HBW)
>885	980	>16	>45	>69	293~352

5.Origin Place:Japan,China,Korea

Cold Rolled Steel Coil

Cold rolled steel coil
Cold rolled strips are used in a wide variety of applications, such as automotive manufacturing, electrical products, rolling stock, aviation, precision instruments, and food cans. Cold rolled steel sheet is the abbreviation of ordinary carbon structural steel cold rolled sheet, also known as cold rolling .

1.Ingredient:

Steel Grade	C	Si	Mn	P	S	Cu
SPCC-SD	0.02-0.08	<0.10	0.15-0.30	<0.045	<0.050	<0.050

2.Heat treatment:N/A
3.Origin Place:Taiwan ,China

SKS3

Advanced tungsten alloy tool steel
Widely used for making punching die, stamping die, bending die and finishing die with thickness less than 8mm，also used for making gauges, measuring tools, woodworking tools and lathe thimbles, guide bushings, thimbles, dies, needles, etc.

1.Ingredient:

Steel Grade	C	Si	Mn	P	S	Cr	W
SKS3	0.90-1.00	0.15-0.35	0.90-1.20	<0.025	<0.010	0.50-1.00	0.50-1.00

2.Equivalent steel:

Equivalent steel	JIS	AISI	DIN	GB
	SKS3	O1	100MnCrW4	9CrWMn

3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
	750-800 Furnace Cooling	550-650 Pre-heating 820-870 Oil Cooling	150-200 Air Cooling

4.Mechanical properties:

Tensile Strength (kgf/mm²)	Hardness (HBC)
140	60

5.Origin Place:Taiwan ,China,Korea

SKS93

Advanced tungsten alloy tool steel
SKS93 high-speed tool steel is a modified steel grade of SK-3. It is easy to cause quenching and deformation when the quenching of high-carbon steel is required to improve the manganese-containing and chromium-containing components. It can get better blade edge and hardening energy than SK-3 (hardening depth is deeper). Easy to process, with high hardness and wear resistance of high carbon steel.

1.Ingredient:

Steel Grade	C	Si	Mn	P	S	Cr
SKS93	1.00-1.10	<0.050	0.80-1.10	<0.030	<0.030	0.20-0.60

2.Equivalent steel:N/A
3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
	750-800 Slow Cooling	820 Oil Cooling	180 Air Cooling

4.Mechanical properties:

Tensile Strength (kgf/mm²)	Hardness (HBC)
140	63

5.Origin Place:Taiwan ,China

Powered Steel

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High Speed Steel

High speed tool steel
A tungsten-based high speed tool for a variety of common cutting tools. It does not contain molybdenum or cobalt. However, it is a relatively soft type in high-speed steel, but unlike SK material (tool steel), it is used at high speed in terms of wear resistance, impact resistance, hardness, and the like. In some cases it can be used.

1.Ingredient:

Steel Grade	C	Si	Mn	P	S	Cr	W	V
SKH2	0.70-0.85	<0.45	<0.40	<0.030	<0.030	3.80-4.50	17.2~18.7	1.00~1.20

2.Equivalent steel:

Equivalent steel	JIS	AISI	DIN	GB
	SKH2	T1	S18-0-1	W18Cr4V

3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
	820-880 Furnace Cooling	1260 Oil Cooling	560 Air Cooling

4.Mechanical properties:

Hardness (HBC)
63

5.Origin Place:Japan

High Speed Steels

High speed tool steel
This is a tungsten-molybdenum high-speed steel, suitable for manufacturing a variety of tools for high-strength wear and impact resistance, advanced die, screw die, tools requiring more toughness and complex shape, milling cutter, drill bit, etc.

1.Ingredient:

Steel Grade	C	Si	Mn	P	S	Cr	W	V	Mo
SKH9	0.8-0.9	<0.45	<0.40	<0.03	<0.010	3.8-4.5	5.9-6.7	1.7-2.1	4.5-5.5

2.Equivalent steel:N/A
3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
	800-850 Furnace cooling	550~600 Preheat, then heat to 950 & heat to 1220~1250 &1200~1230, Oil Cooling	550~570 Air Cooling 2 times temper

4.Mechanical properties:

Hardness (HBC)
63

5.Origin Place:Japan

SK2

High-carbon steel
SK2 is a cold stamping die steel with high hardness, good wear resistance, medium toughness and good machinability. It is suitable for the manufacture of turning tools, milling cutters, drill bits, reamers, scrapers, gauges and cold cut edges with small cross-section. Tools such as molds, punching dies, and metal saw blades.

1.Ingredient:

Steel Grade	C	Si	Mn	P	S
SK2	1.10-1.30	<0.35	<0.50	<0.030	<0.030

2.Equivalent steel:

Equivalent steel	JIS	AISI	DIN	GB
	SK2	W1A-11 1/2	C125W2	T12

3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
	690-720 Furnace Cooling	750-780 Oil Cooling	170-190 Water Cooling

4.Mechanical properties:

Hardness (HBC)
63

5.Origin Place:Japan

Casting Steel

Continuous casting steel
Excellent machinability, tensile strength and toughness are superior to common castings, bubbles, sand inclusions, etc.
Uses for: Air compressor wear-resistant,wear-pressure parts, gears, shafts, bearings, oil seals, shock absorbers and other parts.

1.Ingredient

Steel Grade	C	Si	Mn
KCD	3.00-3.75	2.00-3.50	0.30-1.25

2.Mechanical properties

Tensile strength (N/mm²)	Elongation (%)	Charpy	Hardness (HRB)
>250	>0.43	3.92	75-95

3.Origin Place:Taiwan ,China

Carbon Chromium Steel

Bearing steel
SUJ2 is a high carbon high chromium alloy steel with high toughness, high wear resistance and impact resistance. Used for bearings, shafts, knives, etc., for a wide range of applications, including bearings for typical use

1.Ingredient:

Steel Grade	C	Si	Mn	P	S	Cr
SUJ2	0.95-1.10	0.15-0.35	<0.50	<0.025	<0.025	1.30-1.60

2.Equivalent steel:

Equivalent steel	JIS	AISI	DIN	GB
	SUJ2	52100	100Cr6	GCr15

3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
850-870 Air Cooling	750-790 Slowly cooling	810-850 Oil Cooling	150-190 Air cooling

4.Mechanical properties:

Yielding Strength (kgf/mm²)	Tensile Strength (kgf/mm²)	Elongation (%)	Section reduction (%)	Charpy	Hardness (HBC)
1176	1617	5		28	61~64

5.Origin Place:Japan,China,Korea

NAK80

Daido mirror steel
The patent steel - NAK80 of Japan Daido Steel Co., Ltd. is a pre-hardened plastic mold steel. Factory hardness can reach HRC37-43. It has good polishing performance and engraving, good electrical discharge processing. It is used in mirror polishing mold, anti-dust, TV filter, cosmetic box, precision wrinkle processing mold, office automation equipment, automobile Parts electric discharge machining mold, thickness less than 2MM thin plate, high efficiency blanking die, punching die and stamping die, various scissors, insert blades, woodworking blades, thread rolling die and wear-resistant slider, cold heading die, heat Solid resin molding die, deep drawing die, cold extrusion die.

1.Ingredient:

Steel Grade	C	Si	Mn	Ni	Mo	Cu	Al
NAK80	0.15	0.3	1.5	3	0.3	1	1

2.Equivalent steel:No
3.Heat treatment:N/A
4.Mechanical properties:

Yielding Strength (kgf/mm²)	Tensile Strength (kgf/mm²)	Elongation (%)	Section reduction (%)	Charpy	Hardness (HRC)
103	128	15.6	39.8	3.5	36~45

5.Origin Place:Japan,China

S45C

Carbon steel
The most widely used steel for industrial use, such as general connecting rods, joints, crankshafts, screws, etc.

1.Ingredient:

Steel Grade	C	Si	Mn	P	S
S45C	0.42-0.48	0.15-0.35	0.60-0.90	<0.030	<0.035

2.Equivalent steel:

Equivalent steel	JIS	AISI	DIN	GB
	S45C	SAE1045	1.0503	45

3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
800-870 Air cooling	810 Furnace cooling	820-870 Oil cooling	550-650 Quickly cooling

4.Mechanical properties:

Yielding Strength (kgf/mm²)	Tensile Strength (kgf/mm²)	Elongation (%)	Section reduction (%)	Charpy	Hardness (HBW)
>70	>50	>17	>45	>78	201~269

5.Origin Place:Taiwan ,China,Korea

Lifting Magnet

Our magnet is manufactured by EARTH-CHAIN. Six models are ELM-100/ELM-300/ELM-600/ELM-1000/ELM-2000/ELM-3000 which can hold 100/300/600/1000/2000/3000 kgs respectively.

Made of the latest technology of ferroniobium magnets.
“Small size”, “light weight” and “lower price”.
Permanent magnet, no power supply required, avoiding the risk of power failure and the trouble of connecting wires.
3.5 times safety factor, superior magnetic force, higher safety and greater efficiency when used.

Use and scope of application
Suitable for handling steel plates, iron blocks and cylindrical iron materials, such as: mechanical parts, punching molds, plastic molds and various steel materials.

Spring Steel Bar

Spring steel
All kinds of heavy machinery, trains, cars, locomotives, and various coil and straight springs have the characteristics of high elastic winding after proper heat treatment.

1.Ingredient:

Steel Grade	C	Si	Mn	P	S
SUP3	0.75-0.90	0.15-0.35	0.30-0.60	<0.035	<0.035

2.Equivalent steel:

Equivalent steel	JIS	AISI	DIN	GB
	SUP3	1086	CK85	85

3.Heat treatment:

Normalization	Annealing	Quenching	Tempering
		830-860 Oil Cooling	450-500 Air cooling

4.Mechanical properties:

Yielding Strength (Mpa)	Tensile Strength (Mpa)	Elongation (%)	Hardness (HBW)
>885	980	>8	341~401

5.Origin Place:Japan,China