China JIS Scm440 Scm435 Black Forged 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, Tool Steel Bar, Die Steel Bar
- Alloy：Alloy
- Special Use：Alloy Steel
Base Info
- Model NO.：4140 STEEL
- Delivery Condition：Forged , Forged+Rough Turned
- Heat Treatment：Annealed, Normalized, Qt
- MOQ：One Piece
- Grades：SAE 4140 En19 42CrMo4
- Transport Package：Standard Sea Worthy
- Specification：200-1000mm
- Origin：China
- 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.Scm440 Steel Application
Scm440 steel finds many applications as forgings for the aerospace,oil and gas,automotive, agricultural and defense industries etc.
Typical applications for Scm440 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 Scm440 Steel
Quenched and Tempered (+QT) of EN19 Steel
1. HeatScm440 steel slowly to 840-875°C;
2. Soak at this temperature then quench in oil;
3. Temper as soon as Scm440 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 Scm440 Alloy Steel
1. Heat the Scm440 slowly 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.
China JIS Scm440 Scm435 Black Forged Steel Round Bars
China JIS Scm440 Scm435 Black Forged Steel Round Bars
China JIS Scm440 Scm435 Black Forged Steel Round Bars
7.Scm440 Steel Application
Scm440 steel finds many applications as forgings for the aerospace,oil and gas,automotive, agricultural and defense industries etc.
Typical applications for Scm440 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 Scm440 Steel
Quenched and Tempered (+QT) of EN19 Steel
1. HeatScm440 steel slowly to 840-875°C;
2. Soak at this temperature then quench in oil;
3. Temper as soon as Scm440 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 Scm440 Alloy Steel
1. Heat the Scm440 slowly 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.
China JIS Scm440 Scm435 Black Forged Steel Round Bars
China JIS Scm440 Scm435 Black Forged Steel Round Bars
China JIS Scm440 Scm435 Black Forged Steel Round Bars