Nos430 Die Steel for Hot Forging Tool Steel Sheet Coil Plate Bar Pipe Fitting Flange Square Tube Round Bar Hollow Section Rod Bar Wire Sheet

• Customization: Available
• Type: Steel Plate
• Standard: ASTM, AISI, GB, JIS, DIN, BS
• Model NO.: NOS430
• Certification: ISO, RoHS, IBR
• Surface Treatment: Blackface
• Technique: Hot Rolled
• Application: Mold & Dies, Boiler Plate, Container Plate
• Special Use: Cutting Tools, High-strength Steel Plate, Wear Resistant Steel
• Stock: Stock
• Melting Process: Eaf+ESR
• Shape: Plate/Flat Bar/Round Bar
• Transport Package: Export Standard Packing or Customers′ Demand
• Specification: According to customer requirements
• Trademark: BOZ
• Origin: China
• Production Capacity: 5000tons/Month

Product Description

Description

NOS430 Die Steel for Hot Forging Toolings, Super Purity Die Steel
 
Features
NOS430, originates from SUPER technology and is a type of hot work tool steel with high purity, homogeneous annealing structure, excellent thermal conductivity and temper softening resistance.
NOS430 is applied for middle-large sized hot stamping, brass hot forging, die casting core insert and brass extrusion, which are working under high temperature.
NOS430 is strictly inspected as per standard NADCA#229-2011, and other properties also can be tested as customers' requirement.
 


Chemical Composition (%)

C	Si	Mn	P	S	Cr	Mo	V
0.38 0.43	0.15 0.40	0.40 0.60	≤ 0.020	≤ 0.0005	Patented

 
Dimensions

Shape	Thick / Dia. (mm)	Width (mm)
Round	100-500	/
Block	100-400	200-1000

Delivery Condition
EAF+LF+VD+ESR, Forged, Spheroidizing Annealed, EFS, Hardness≤200HB, Black surface or Machined surface,
UT 100% Passed
 
 

                          
Take the advanced melting process for smelting and refining to get the super purified and homogeneous steels.
 
Take the advanced 3D forging technology to thinning the structure; eliminate the internal defect like shrinkage cavity and porosity; break the big-sized carburization and reduce the band segregation. It is helpful to reduce the discrepancy in the different directions of the steel.
 
Take the advanced Super-fining heat treatment technology to get the small grain size and homogeneous structure.
 
Take the strict inspection for each piece of steel products according to the most advanced standard. Ensure our customers use the steels with excellent and stable quality.
Physical Property (Q+T to be 45HRC)

Temperature ºC	Density Kg/m3	Elasticity Modulus Mpa	Thermal Expansivity X 10-6/ºC	Thermal Conductivity W/(mºC)
20	7800	210000	--	--
400	7700	180000	12.6	33
600	7600	145000	13.2	33

 
Mechanical Property (Room temperature, S-T direction)

Hardness HRC	Tensile Strength (Rm) Mpa	Yield Strength (RP0.2) Mpa
48	1620	1400
45	1470	1470
40	1250	1250

Heat Treatment
Soft Annealing
Heating steels upto 820ºC in protective atmosphere; after soaking, then have cooling in the furnace at the rate of 10ºC/hr; after temperature comes down to 650ºC, finally have air cooling.
           
Stress relieving
Stress Relieving should be done on the die after rough machining, heating upto 650ºC, heat preservation for 2 hours; Slow cooling down to 500ºC, further air cooling.
 
Hardening
Refer to Hardening Diagram,
Preheating in two steps as per A: 600ºC and B: 850ºC.
Austenization as per C: 1020-1050ºC
Direct cooling as per D, or Sectionalized cooling as per E:500-550ºC
 

 
              Hardening Diagram                    Tempering Diagram
Tempering
Refer to Tempering Diagram. Choose the proper tempering temperature for required hardness.
For die casting mould, temper at least 3 times.
For hot forging die and extrusion die, temper at least 2 times.
After tempering, it must need cooling down to room temperature.
Holding time for tempering is 2 hours min..
Tips: To avoid the temper brittleness, don't temper in 500-550ºC.
 
Hardness: HRC                                       Residual Austenite %

      Tempering Temperature (2h+2h) ºC
 
Tips
1. Holding time means the duration of die steel from total heating to Austenitization.
2. During hardening process, steel must be heated to avoid oxidation or decarburization.
3. Steels need to be tempered immediately when temperature gets down to be 50-70ºC.
4. To get excellent property for the die, the quenching speed should be as fast as possible,    
    but should avoid the case of being out of shape or cracks.
If you need more details, please refer to "Heat Treatment Manual" or consult us.
 
Quenching Holding Time and Thickness

Thickness mm	Time Sec	Thickness mm	Time Sec
5	60	50	300
10	90	60	390
20	160	70	420
30	240	80	440
40	280	90	495

 
Product Application

Industry	Features	Steel Grade Recommendation
Die Casting	Die Casting is a kind of metal casting technique. It is characterized by using the mould cavity to have high pressure on molten metal. It has the good performance in anti heat cracking, anti corrosion, anti-crack, red hardness.	NOS411, NOS415, NOS425, NOS430, NOS560
Hot Extrusion	Before extrusion, heat the metal over temperature of recrystallization. It has the good strength at high temperature, high ductility and good toughness, high thermal fatigue resistance and thermal wear resistance, as well as the anisotropic properties of consistency.	NOS411, NOS415, NOS425, NOS430
Hot Forging	Hot forging is a kind of processing under the condition of over the temperature of recrystalization. It has the good thermal wear resistance, heat intensity, high ductility and good toughness, high thermal conductivity.	NOS411, NOS415, NOS425, NOS430, NOS560
Hot Stamping	Hot Stamping is the rapid molding in the mould blank and hardening heat. It has the good thermal conductivity, hot bending strength, high toughness and ductility.	NOS411, NOS415, NOS425, NOS430, NOS560
Injection Molding	Injection molding is a kind of forming process of injection and molding at the same time. It has the high polishability, good corrosion resistance, wear resistance, anti-cracking and thermal conductivity.	NOS411, NOS415, NOS425, GY336
Compression Molding	Compressing Molding is a process of solidifying the thermosetting plastics through heating and pressing. It is usually used for plastic molding with reinforced glass fiber. It has the good wear resistance, strength, hardness and corrosion resistance.	NOS411, NOS415, NOS425, GY336
Blow Molding	Blow Molding is a process blowing the raw materials in the closed mould to be the hollow products by gas pressure. It has the medium strength and wear resistance, good thermal conductivity and corrosion resistance.	NOS411, NOS415, NOS425, GY336
Extrusion Molding	Extrusion Molding is a kind of process making the heat plasticized materials to be a specific profile though extrusion. It has the medium strength, but high demand on corrosion resistance and wear resistance. Nitridation is generally used for the mould of fiber reinforced products.	NOS411, NOS415, NOS425, GY336

Performance Comparison

 
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
 

Company Information

Bozhong Group Mainly supply in forms of coil, sheet, plate, rod, bar, tube, pipe, beam, angle, flange, wire, strip, channel, etc., with various varieties, wide range of dimensions, high purity, stable chemical composition, high dimensional accuracy and excellent surface quality. The products are mainly used in the fields of industries such as automobile engineering, railway transportation, aviation, aerospace, machinery, petrochemical, energy, environmental protection, offshore, chemical, oil & gas, ilitary, power plant, nuclear power, pressure vessel, boiler equipment, mold manufacture, etc.

steel coil

l steel plate

l steel sheet

l steel bar/rod

    steel round bar

    steel flat bar

    steel square bar

l steel pipe/tube ( welded or seamless )

    steel round pipes

    steel square pipes

    steel welded tubes

    steel seamless tubes

l steel strip

l steel beam

l steel angle

l steel channel

l steel flange

l Steel wire
 

Bozhong Group can supply a variety of structural steel, high-strength steel, wear-resistant steel plate, boiler and pressure vessel steel, marine engineering and stainless steel plate in the thick steel and various European standard bars and pipes and profiles.Our global sales and service network throughout all around the world to ensure that the goods reach the customer in the shortest time.
 

We can follow your drawings and requirements, to provide you with oxygen cutting, plasma cutting and laser cutting and other processing services. You can also perform ultrasonic testing in accordance with EN10160 standard, EN10164 standard test Z15, Z25, Z35, weld bending detection, PWHT detection,etc.

 

We have ISO9001: 2000 quality management system certification, and obtain the quality certification from all the well-known certification company, including TuV / LRS / GL / CE and so on.

 

Special steel includes as below:

Boiler and pressure vessel steel

Pipeline steel

Bridge steel

Nuclear power steel

Structural steel

Die steel

High strength steel

Abrasion resistant steel

Weathering, corrosion resistant and fire resistant steel

High rise building steel

Shipbuilding and offshore engineering steel

 

FAQ

Q: Are you a manufacturer or merely a trader?

A: We are group of companies and owned manufacturer bases and trading company. We specialized in special steel which include alloy structural steel and carbon steel and stainless steel, etc. All material are with high quality and competitive price.

 

Q: How do you guarantee the quality of your product?

A: Firstly, we can provide the certificates from the third party, such as TUV, CE, if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival.

 

Q: Delivery time?

A: We have ready stock for most of material grades in our warehouse. If the material don't have stock, the delivery lead time is about 5-30 days after receiving your prepayment or firm order.

 

Q: What is the payment term?

A: T/T or L/C.

 

Q: Can you provide a sample for our testing before confirm the order?

A: Yes. We can provide sample to you for approval before you place an order to us. Free sample is available if we have stock.

 

Q: Can we visit your company and factory?

A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come.


Customer Visiting:

 

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