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Alloy steels are designated by AISI four-digit numbers. They are more responsive to mechanical and heat treatments than carbon steels. They comprise different types of steels with compositions which exceed the limitations of B, C, Mn, Mo, Ni, Si, Cr, and Va in the carbon steels.
| Technical parameters | |
| Material | 4140 Steel Pipe |
| Size | Thickness:3mm~100mm; |
| Standard OD:22,25,27,28,30,32,38,42,45,48,50,54,57,60,63.5,68,70,73,83,89,95,102,108,114,121,127,133,140,146,152,159,168,180,186,194,203mm. | |
| Length:3000mm-6000mm | |
| Origin place | Made In China |
| Delivery Condition | Hot rolled,cold drawn,forged |
| Surface require | Black,grinding,bright,polish |
| 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. |
| AISI | GB/T | DIN | DIN | C | Si | Mn | P | S | Ni | Cr | Mo | V |
| 4118 | 20CrMo | 18CrMo4 | 1.7243 | 0.18-0.23 | 0.15-0.35 | 0.70-0.90 | ≤ 0.035 | ≤ 0.035 | - | 0.4-0.6 | 0.08-0.15 | - |
| 4130 | 30CrMo | 25CrMo4 | 1.7218 | 0.28-0.33 | 0.15-0.35 | 0.40-0.60 | ≤0.035 | ≤ 0.040 | - | 0.80-1.10 | 0.15-0.25 | - |
| 4135 | 35CrMo | 34CRMO4 | 1.722 | 0.33-0.38 | 0.15-0.35 | 0.70-0.90 | ≤ 0.035 | ≤ 0.040 | - | 0.80-1.10 | 0.15-0.25 | - |
| 4140 | 42CrMo | 42CrMo4 | 1.7225 | 0.38-0.43 | 0.15-0.35 | 0.75-1.00 | ≤ 0.035 | ≤ 0.040 | - | 0.80-1.10 | 0.15-0.25 | - |
| 4340 | 40CrNiMo | 36CrNiMo4 | 1.6563 | 0.38-0.43 | 0.15-0.35 | 0.60-0.80 | ≤ 0.035 | ≤ 0.040 | 1.65-2.00 | 0.70-0.90 | 0.20-0.30 | - |
| 5115 | 15CrMn | 16MnCr5 | 1.7131 | 0.14-0.19 | ≤ 0.4 | 1.0-1.30 | ≤ 0.025 | ≤ 0.035 | - | 0.80-1.10 | - | - |
| 5120 | 20Cr | 20Cr4 | 1.7016 | 0.17-0.22 | 0.15-0.35 | 0.7-0.9 | ≤0.035 | ≤ 0.040 | - | 0.70-0.90 | - | - |
| 5120 | 20CrMn | 20MnCr5 | 1.7147 | 0.17-0.22 | 0.15-0.40 | 1.1-1.4 | ≤ 0.025 | ≤ 0.035 | - | 1.0-1.3 | - | - |
| 5140 | 40Cr | 41Cr4 | 1.7035 | 0.38-0.43 | 0.15-0.35 | 0.7-0.9 | ≤ 0.035 | ≤ 0.040 | - | 0.70-0.90 | - | - |
| 6150 | 50CrV | 51CrV4 | 1.8159 | 0.48-0.53 | 0.15-0.35 | 0.70-0.90 | ≤ 0.035 | ≤ 0.040 | - | 0.80-1.10 | - | ≥0.15 |
| 8620 | 20CrNiMo | 21NiCrMo2 | 1.6523 | 0.18-0.23 | 0.15-0.35 | 0.7-0.9 | ≤ 0.035 | ≤ 0.040 | 0.4-0.7 | 0.4-0.6 | 0.15-0.25 | - |
SICHUAN LIAOFU SPECIAL STEEL COMPANY.,LTD
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.
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 | |||
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.
