| Customization: | Available |
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| Type: | Alloy Steel Bar |
| Standard: | AISI, ASTM, GB, JIS, DIN |
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AMS6416 300M/4340M alloy steel
300m steel is a kind of low alloy high strength steel, has become the world's highest strength, comprehensive performance is best, the most widely used one of the best gear steel and reputation.Its mechanical properties with high strength, high transverse plastic, high fracture toughness, fatigue performance and good corrosion resistance, etc.In China in the mid - 80 - s began AMS6417 copied by American aerospace material standard, and in 1990 by metallurgical and two joint technical appraisal of aeronautics and astronautics
Product Application Areas:
4340M steel USES vacuum arc melting technology to improve purity, plasticity, toughness, etc. AMS6416 standard USES non-vacuum smelting, which is the general aviation quality level. Other parts of the standard use vacuum smelting to achieve high quality aviation quality level.
By the standard heat treatment oil quenching and tempering, the tensile strength of the steel can reach more than 1860MPa, which is currently the highest strength of low-alloy ultra-high strength steel. High strength can reduce the weight of the parts, improving the strength has been one of the main goals of landing gear parts design. The main wing bearing components of the American aircraft are also 300M steel and used to the highest strength level.
characteristic:
The fatigue resistance of 4340M steel is obviously better than that of 4340. This is extremely beneficial for the long life of the landing gear and other aircraft components and is the main reason why 300M steel is widely used in aircraft.It contains 1.5% silicon, which improves the stress corrosion resistance of 300M steel.
Produce process:EAF + LF + VD + Forged + Heat Treatment -Annealed
| Technical parameters | |
| Material | 300M die steel round bar |
| Size | Diameter:10mm-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 10-50 days |
| Trade Term | EXW,FOB,CIF |
| Payments | T/T or L/C at sight |
| Port | China main Port,such as shanghai, Dalian, shenzhen port. |
| C | Mn | P | S | Si | Cr | Mo | Ni | V |
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0.38-0.46 |
0.60-0.90 |
0.010Max. | 0.010max. | 1.45-1.80 | 0.70-0.95 | 0.30-0.65 | 1.65-2.00 | 0.05min. |
| Material | 4340M | ||
| Chemical Composition | Mechanical Properties(In Quenched & Tempered State) | ||
| C | 0.38-0.46 | Tensile strength(MPA) | 1860 |
| Si | 0.17-0.37 | Yield strength (MPA) | - |
| Mn | 0.60-0.90 | Elongation(δ5/%) | - |
| Cr | 0.70-0.95 | Reduction in Area (ψ/%) | 25 |
| Mo | 0.30-0.65 | Impact (J) | 23 |
| P | ≤0.010 | ||
| S | ≤0.010 | Hardness (Anealed Condition) | ≤241HB |
| Cu | ≤0.30 | ||
| Ni | 1.65-2.00 | ||
| V | Min 0.05 | ||
SICHUAN LIAOFU SPECIAL STEEL COMPANY.,LTD
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.
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Alloy Steel
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4140,4142,42CrMo4,1.7225,SCM440,4130,SCM430,25CrMo4,1.7218,34CrNiMo6, 1.6582,4340,SNCM439,36CrNiMo4,1.6511,SACN645,1340,SMn438,SNC236 |
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Tool Steel
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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 |
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Bearing Steel
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GCr15,52100,SUJ1,SUJ2,100Cr6,1.2067,55C,8620,4320,9310,440C,M50
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Spring Steel
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9260,SUP6,SUP7,1.7108,54SiCr6,1.7102,5155,SUP9,1.7176,5160,1.7177,6150, SUP10,51CrV4,1.8159 |
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Stainless Steel
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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 |
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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.
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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.
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