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4140 8620 4340 Forged Steel

4140 8620 4340 Forged Steel
Price: US $ 500/Ton
Trade Terms: FOB,CFR,CIF
Min Order: 10/Ton
Pay Type: L/C,T/T,D/P,Paypal,Money Gram
Steel Forgings

1. Steel grades in different standard and Chemical composition

Steel gradesCSiMnCrMoNiPSVw
Carbon Structure SteelQ235(B)/SS400/S235JR/A36≤ 0.20≤0.35≤1.40.3-0.4
≤0.30≤ 0.045≤ 0.045

20#/CK22, CK20/1020/050A20/S20C0.17-0.230.17-0.370.35-0.650.3-0.4
≤0.30≤ 0.035≤ 0.035

45#/CK45, C45/1045/080M46/S45C0.42-0.50.17-0..370.5-0.80.3-0.4
≤0.30≤ 0.035≤ 0.035

Alloy Structure Steel20Cr/20Cr4/5120/527A19/SCr420H0.18-0.240.17-0.370.50-0.800.70-1.00≤0.15≤0.30≤ 0.035≤ 0.035

40Cr/41Cr4/5140/520M40/SCr4400.37-0.440.17-0.370.5-0.80.8-1.1≤0.15≤0.30≤ 0.035≤ 0.035

30CrMo/4130/1717COS110/SCM4200.26-0.340.17-0.370.4-0.70.8-1.10.15-0.25≤0.30≤ 0.035≤ 0.035

35CrMo/34CrMo4/4135/708A370.32-0.400.17-0.370.4-0.70.8-1.10.15-0.25≤0.30≤ 0.035≤ 0.035


2. Mechanical property:
NameTensile Strength (Mpa)Yield Strength  (Mpa)Elongation  (%)AKV    (J)Reduction of Area (%)

minminminminmin
Q235(B)/SS400/S235JR/
A36
41023525
55
20#/CK22, CK20/1020/
050A20/S20C
41024525
55
45#/CK45, C45/1045/080M46/S45C600355163940
20Cr/20Cr4/5120/527A19/SCr420H41024525
55
40Cr/41Cr4/5140/520M40/SCr44098078594745
30CrMo/4130/1717COS110/SCM420930785126350
35CrMo/34CrMo4/4135/708A37980835126345
42CrMo/42CrMo4/4140/708A42/708M401080930126345
40CrNiMoA/40CrNiMo22/4340/871M40/SNCM439980835127855
65Mn/65/1566/7354309
30
55Si2Mn/55Si7/9255/250A53/SUP6127411766
30
60Si2MnA/65Si7/9260/250A61/SUP7157013755
20
9260H




50CrVA/50CrVA/6150/735A50/SUP101280113010
40
GCr15/100Cr6/E52100/534A99/SUJ2




52100




SAE 8620H98078594740
 
3. Production Line:
EAF(EBT) → LF → VD → IC → ESR → AOD → Forging →NDT → Rough Machining → NDT → Heat Treatment → NDT → Finish Machining→Consignment

4. Further Processing:
Surface Treatment: Peeling, Turning, Grinding, Milling, Drilling, Boring
Heat Treatment: Normalizing, Annealing, Quenching+ Tempering

5. Quality Control: UT tested, Sep1921, Class C/c and D/d

6. Products and Dimensions

7. Advantages:
* Reduced chance of void
* Better fatigue resistance 
* Improved microstructure
* Continuous grain flow
* Finer grain size
* Greater Strength

8. Application: 
* Roller for Metallurgy
* forgings for shipping
* forgings for power station
* High Pressure boiler Tube
* Forgings for Corrugated Roller
* Drill Collars
* Elevator and Slip Recesses
* Heavy Weight Drill Pipe/Kelly
* lifting Subs/Drill String Cross-over Sub
* Stabilizer/Intergral spiral Blade Stabilizer/WZ Type Integral Blade Stabilizer/Three Roller Stabilizer/Non-magnetic Stabilizer
* Mandrel Bar
* Pipe Mould 
* Wind Turbine Shaft

9. Equipment:
Steel Making System
* 40t VD/VOD Furnace
* 40t LF Furnace Melting
* High Power 40t EBT EAF
* 50T Vacuum Casting
* 8t AOD Furnace/*20t ESR Furnace Melting
Prod Model: 4140 8620 4340
Markets: North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
Name: Forging Steel Bar
Grade: Carbon or Alloy
Main Material: 1020 Ck45 4140 4150
Size: 200mm-1000mm or as Customer's Drawing
Supply Condition: Forged+Q+T
Suface Condition: Black Surface or Turnned with Bright Surface
Processing Object: Metal
Molding Style: Forging
Heat Treatment: Q+T
Qingdao Helio Steel Co., Ltd. Was established in March19, 2012. Our company's business staff members possess professional service capabilities of steel products, with more than a decade of experience on steel production, technology development, product sales and foreign trade. We comply the principle of friendly cooperation and mutual benefit, and persist in developing together with new and old customers.

Our company is located in Qingdao, a coastal city of Shandong Province, which is near Laiwu Steel Group. Only Laiwu City has steel production capacity of 20 million tons each year. Meanwhile, it is also the largest production base of powder metallurgy products in the whole country. Otherwise, there are more than ten well-known steel manufacturers within the province and the surrounding areas, so steel resources here is abundant and we can meet customers' various requirements.

Our company is mainly engaged in steel products for various specifications and materials, such as continuous casting billets, continuous casting tubes, hot-rolled bars, tubes, hot-rolled square steel, flat steel, H section steel, hot-rolled coils, cold-roll large-size panels, forging materials, and forgings.

We also run the import and export of steel products, based on the needs of customers at home and abroad to develop a variety of special steel products and timely delivery. I hope to sincerely cooperate with domestic and foreign customers, providing high-quality and low-priced products and professional services.

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  • Qingdao Helio Steel Co., Ltd.

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