TOBO STEEL GROUP CHINA
TOBO GROUP TOBO International Trading(Shanghia)Co.,Ltd Tianda Oil Pipe Co., Ltd TOBO Pipeline Equipment Co.,Ltd TPCO & TISCO Pipe(Tianjin)Co.,Ltd.
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scm440 seamless steel pipe 4140 hot rolled steel tube
best sae 4140 steel tube 1.7225 machined tube,scm440 plunger sleeve,
sae 4140 pump shaft
4140 Hexagon Cold drawn Shaped Steel Tube
4140 Steel Roller,we can produce Machined Part according to drawings
Standards:ASTM,JIS,GB,EN(DIN,BS,NF) Or Per as clients’ requires.
Product Basic Information:
1.Chemical Composition and Mechanical Properties(In Quenched & Tempered State):
| Material | 4140 | ||
| Chemical Composition | Mechanical Properties(In Quenched & Tempered State) | ||
| C | 0.38-0.45 | Tensile strength(MPA) | ≥1080 |
| Si | 0.17-0.37 | Yield strength (MPA) | ≥930 |
| Mn | 0.50-0.80 | Elongation(δ5/%) | 12 |
| Cr | 0.90-1.20 | Reduction in Area (ψ/%) | 45 |
| Mo | 0.15-0.25 | Impact (J) | 63 |
| P | ≤0.035 |
Hardness |
≤217HB |
| S | ≤0.035 | ||
| Cu | ≤0.30 | ||
| Ni | ≤0.30 | ||
2.Product Application Areas:
Our products have been used in all kinds of areas, such as aviation,aerospace,navigation,nuclear energy,chemical industry,
electronic information,achine manufacture, petrochemical, automotive,instrument and meter, Communication ,transportation, and medical instruments, etc.
3.Similar steel grade & equivalent steel materials:
| USA | Japanese | Gemany | British | France | International | Chinese |
| ASTM&AISI&SAE | JIS | EN DIN | EN BS | EN NF | ISO | GB |
| 4140 | SCM440 | 42CrMo4 1.7225 | 42CrMo4 1.7225 | 42CrMo4 1.7225 | ------ | 42CrMo |
4 we have sold 4140 hot rolled and 4130 cold drawn steel tube before,aslo we can produce machined steel pipe according to drawing,we have sold to Israel,brazil,Portugal and son on,u can check some of the pictures below
4130 steel tube
Product Sales Information:
| Material | 4140 steel tube |
| Size | outside Diameter:10mm-500mm Length:500mm-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 40-50 days |
| Trade Term | EXW,FOB,CIF |
| Payments | T/T or L/C at sight |
| Port | China main Port,such as shanghai,Dalian,Shenzhen port. |
| MOQ | 1 Ton |
Company Main Products:
| 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, |
