SAE 4140 En19 42CrMo4 Forged and Machined Steel Round Bars
Laiwu Xincheng Metal Co., Ltd.- Type：Alloy Steel Bar
- Standard：AISI, ASTM, GB, JIS, DIN, BS
- Technique：Forged
- Application：Structural Steel Bar, Die Steel Bar
- Surface Treatment：Black or Rough Machined
- Alloy：Alloy
Base Info
- Model NO.：AISI 4140 EN19 1.7225 42CRMO4
- Special Use：Mold Steel, Cold Heading Steel
- Ut Test：Sep1921- Class C,C,D,D
- PRO：Forged Steel Bars
- Grades：1020,1045,4130,4140,4150,8620,4340
- Transport Package：Standard Seaworthy
- Specification：200-1000mm
- Trademark：Laiwu Xincheng
- Origin：China
- HS Code：72284000
- Production Capacity：3000tons,Month
Description
0.15-0.30EN10083 1.7225 JIS G4105 SCM440 0.38-0.43 0.15-0.35 0.6-0.85 ≤ 0.035 ≤ 0.04 0.9-1.2 0.15-0.30 GB 3077 42CrMo 0.38-0.45 0.17-0.37 0.5-0.80 ≤ 0.035 ≤ 0.035 0.9-1.2 0.15-0.25 BS 970 EN19 0.35-0.45 0.15-0.35 0.5-0.80 ≤ 0.035 ≤ 0.035 0.9-1.5 0.2-0.40
7.4140 Forged Steel Application
42crmo4/4140 steel finds many applications as forgings for the aerospace,oil and gas,automotive, agricultural and defense industries etc.
Typical applications for 4140 steel uses include:forged gears,spindles,fixtures,jigs,collars,Axles,conveyor parts,crow bars,logging parts,shafts,sprockets,studs,pinions,pump shafts, rams, and ring gears etc
8.Quality control:
1. Melting Process: EAF/BOF+LF+VD resulting in ingots
2. Both ends cut by saw
3. Ratio of forging:minimum 3:1
4. Grain size of final product: according to ASTM E112 more than 5,preferred more than 8
5. Ultrasonic test: As per SEP1921 Class C/c or D/d
9.Heat treatment of 42crmo4/4140 Steel
Quenched and Tempered (+QT) of EN19 Steel
1. Heat 42crmo steel slowly to 840-875°C;
2. Soak at this temperature then quench in oil;
3. Temper as soon as 42crmo reach room temperature (20°C);
4. Heat uniformly to the suitable temperature of 560°C;
5. Withdraw the material from the furnace and cool in the air.
Annealing of 42crmo Alloy Steel
1. Heat the 42crmoslowly to 800-850°C and allow enough time.
2. Cool slowly in the furnace to 480°C followed by air cooling
10.MOQ: one piece per size/grade
11.Payment term: FOB CIF CFR EXW and so on
12.Delivery time : 7 to 30 days after deposit received.
7.4140 Forged Steel Application
42crmo4/4140 steel finds many applications as forgings for the aerospace,oil and gas,automotive, agricultural and defense industries etc.
Typical applications for 4140 steel uses include:forged gears,spindles,fixtures,jigs,collars,Axles,conveyor parts,crow bars,logging parts,shafts,sprockets,studs,pinions,pump shafts, rams, and ring gears etc
8.Quality control:
1. Melting Process: EAF/BOF+LF+VD resulting in ingots
2. Both ends cut by saw
3. Ratio of forging:minimum 3:1
4. Grain size of final product: according to ASTM E112 more than 5,preferred more than 8
5. Ultrasonic test: As per SEP1921 Class C/c or D/d
9.Heat treatment of 42crmo4/4140 Steel
Quenched and Tempered (+QT) of EN19 Steel
1. Heat 42crmo steel slowly to 840-875°C;
2. Soak at this temperature then quench in oil;
3. Temper as soon as 42crmo reach room temperature (20°C);
4. Heat uniformly to the suitable temperature of 560°C;
5. Withdraw the material from the furnace and cool in the air.
Annealing of 42crmo Alloy Steel
1. Heat the 42crmoslowly to 800-850°C and allow enough time.
2. Cool slowly in the furnace to 480°C followed by air cooling
10.MOQ: one piece per size/grade
11.Payment term: FOB CIF CFR EXW and so on
12.Delivery time : 7 to 30 days after deposit received.