Valve Steel X40crsimo10-2 1.4731 Stainless Steel Round 4cr10si2mo Steel Rod

• Customization: Available
• Type: Stainless Steel Bars
• Standard: ASTM, AISI, GB, JIS, DIN
• Grade: Suh-3
• Certification: ISO, RoHS, IBR, AISI, ASTM, GB, EN, DIN, JIS
• Shape: Round
• Technique: Cold-Drawing
• Surface Treatment: Bright
• Origin Place: Made in China
• Surface Require: Bright,Polish
• Trade Term: EXW,Fob,CIF
• Delivery Time: in 10-50 Days
• Heat Treatment: Quenched,Tempered,Annealed
• Delivery Condition: Hot Rolled,Cold Drawn,Forged
• Transport Package: Seaworthy Packing,Wooden Case,Carton,Woven Bag or
• Specification: Length: 3000mm-6000mm
• Trademark: DONGBEI SPECIAL STEEL
• Origin: Liaoning
• Production Capacity: 50000tons/Year

Product Description

Product Description

 

X40CrSiMo10-2 is a martensitic stainless steel that is primarily used for manufacturing exhaust valves and other high-temperature components in internal combustion engines. It is known for its excellent high-temperature strength, oxidation resistance, and wear resistance.

Chemical Composition (wt.%)

• Carbon (C): 0.35 - 0.45
• Silicon (Si): 2.00 - 3.00
• Manganese (Mn): ≤ 0.80
• Phosphorus (P): Max 0.04
• Sulfur (S): Max 0.03
• Chromium (Cr): 9.50 - 11.50
• Molybdenum (Mo): 0.80 - 1.30
• Nickel (Ni): Max 0.50

Mechanical Properties

• Proof Strength (Rp0.2): ≥ 350 MPa
• Tensile Strength (Rm): ≥ 650 MPa
• Impact Energy (KV): 275 J
• Elongation at Fracture (A): 8% - 25%
• Reduction in Cross Section on Fracture (Z): 21%
• Brinell Hardness (HBW): 200 - 250

Physical Properties

• Density: 7.85 g/cm³
• Thermal Expansion: 10 - 10 e-6/K
• Thermal Conductivity: 25 W/m·K
• Specific Heat: 460 J/kg·K
• Melting Temperature: 1450 - 1510 °C
• Resistivity: 0.55 Ohm·mm²/m

Heat Treatment

• Annealing: Typically involves heating to a temperature range of 850°C - 870°C, followed by slow cooling to achieve a soft and ductile microstructure.
• Quenching: Heating to a temperature of 1050°C, holding for a period, and then air cooling.
• Tempering: After quenching, tempering at 600°C to achieve the desired hardness and toughness.
• Normalizing: Heating to a temperature of 850°C - 870°C, followed by air cooling.
• Quenching and Tempering (Q&T): Quenching followed by tempering to achieve a combination of high strength and toughness.

Applications

X40CrSiMo10-2 steel is widely used in the automotive and industrial sectors for components that require high strength and good wear resistance at elevated temperatures. It is particularly suitable for:

• Engine Valves: Due to its high-temperature strength and resistance to oxidation and corrosion.
• High-Temperature Components: Such as exhaust systems, turbochargers, and other parts that operate in high-temperature environments.

Standards

X40CrSiMo10-2 steel is covered by the following standards:

• DIN/EN: X40CrSiMo10-2
• AISI/SAE: SUH3
• WNR: 1.4731
• AFNOR: Z40CSD10
• UNF: F.3221-X40CrSiMo10-02
• JS1: SUH3

Our factory mainly produce below vavle steel grades:
Din 1.4718 X45crsi93 and jis suh1 china 4cr9si2 vavle steel
Din 1.4871 X53crmnnin21-9 astm21-4N and JIS SUH35 vavle steel

DIN X40CrSiMo10-2  1.4731 JIS SUH3 China 4cr10si2mo vavle steel

21-2N X55CrMnNiN20-8 1.4875 x55cr2mn8ni2n vavle steel

Technical parameters
Material	SUH-3 stainless steel round bar
Size	Diameter:5mm-1000mm
	Length:3000mm-6000mm
Origin place	Made In China
Delivery Condition	Hot rolled,cold drawn,forged
Surface require	Black,grinding,bright,polish,turn,peel
Heat treatment	Quenched,Tempered,annealed
Packing	seaworthy packing,wooden case,carton,woven bag or at client's requires
Delivery time	In 20-30 days
Trade Term	EXW,FOB,CIF
Payments	T/T or L/C at sight
Port	China main Port,such as shanghai, Dalian, shenzhen port.

  

Detailed Photos

 

  

 

 

Company Profile

SICHUAN LIAOFU SPECIAL STEEL COMPANY.,LTD

Sichuan Liaofu Special Steel Company.,Ltd was established in 2001, specialized in special steel production and inventory as the main business. In 2004, our company Chairman Mr.Mike Guo purchased a batch of advanced equipment for the production of hot rolled and forged products.After several years of development, our company has gradually formed a complete production and operation system of smelting, refining, forging , heat treatment. Meanwhile we began to expand overseas markets and Obtained the national export license and the customs certificate since 2005. In 2007, we concluded the first export order. For satisfying customers' extensive demands,We have set up a sales department for rare metals such as titanium and copper in 2009.

We has state-of-the art production lines with leading-edge technology for bearing steel 100Cr6, stainless steel 304 / 316 / Duplex
UNS S31803 and Super Duplex UNS S3276, alloy steel 4130/4140/8620 ,high speed tool T1/M2/M35/M42 and die steel D2/D3/H13/H21/P20,The products covers special steel round, square, flat, wire rod, wire, sheet, pipe, strip and heavy forgings.Produces forged round steel (¢120~850mm) and square steel (120~550mm) of various steel grades. The largest production steel ingot 13T, mainly forged alloy steel. The annual output of forged round can reach 60,000 tons.

 

 

 

Recommend Product

We Have State Of The Art Production Lines With Leading Edge Technology For Bearing Steel 100Cr6, Stainless Steel 304 / 316 / Duplex UNS S31803 And Super Duplex UNS S3276, Alloy Steel 4130/4140/8620, High Speed Tool T1/M2/M35/M42 And Die Steel D2/D3/H13/H21/P20. The Products Covers Special Steel Round, Square, Flat, Wire Rod, Wire, Sheet, Pipe, Strip And Heavy Forgings. Produces Forged Round Steel (¢120~850mm) And Square Steel (120~550mm) Of Various Steel Grades.

Alloy Steel	4140,4142,42CrMo4,1.7225,SCM440,4130,SCM430,25CrMo4,1.7218,34CrNiMo6, 1.6582,4340,SNCM439,36CrNiMo4,1.6511,SACN645,1340,SMn438,SNC236
Tool Steel	H13,1.2344,SKD61,D2,SKD11,1.2379,1.2510,01,SKS3,95MnWCr5,D3,SKD1,1.2419, SKS31,H21,SKD5,1.2581,P20,35CrMo7,1.2738,1.2316,M2
^Bearing Steel	GCr15,52100,SUJ1,SUJ2,100Cr6,1.2067,55C,8620,4320,9310,440C,M50
Spring Steel	9260,SUP6,SUP7,1.7108,54SiCr6,1.7102,5155,SUP9,1.7176,5160,1.7177,6150, SUP10,51CrV4,1.8159
Stainless Steel	321,sus321,1.4541,304,SUS304,1.4301,410,SUS410,1.4006,420,1.4021,1.4028, 434,1.4113,316L,SUS316L,1.4435,630,1.4542,431,1.4057

FAQ

Q: Are you trading company or manufacturer ?
A: We are factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according toquantity.
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shippment.lf you have another question, pls feel free to contact us.