• Model NO.：4140 Quench & Tempered
• Special Use：Mold Steel, Free Cutting Steel, Cold Heading Steel
• Delivery Condition：Q&T
• Do You Have Factory：Yes
• MOQ：3tons Per Size
• Sizes：M12-M1000
• Grade：En19 42CrMo4 42CrMo4 4140
• Transport Package：Standard Sea Worthy
• Specification：M12-M310
• Trademark：Laiwu Xincheng
• Origin：China
• HS Code：72283090
• Production Capacity：3000tons,Month

0.38-0.45≤ 0.40.6-0.90≤ 0.025≤ 0.0350.9-1.20.15-0.30EN100831.7225JIS G4105SCM4400.38-0.430.15-0.350.6-0.85≤ 0.035≤ 0.040.9-1.20.15-0.30GB 307742CrMo0.38-0.450.17-0.370.5-0.80≤ 0.035≤ 0.0350.9-1.20.15-0.25BS 970EN190.35-0.450.15-0.350.5-0.80≤ 0.035≤ 0.0350.9-1.50.2-0.40
3.Application of AISI 4140 SCM440 EN19 42CrMo4 Q&T steel bars:
Quenching and tempering is widely used for structural parts that require excellent comprehensive performance, especially working under alternating loads, such as automobile shafts and gears, High strength bolts, aircraft engine turbine shafts, compressor disks, etc.

4.Mechanical properties of AISI 4140 SCM440 EN19 42CrMo4 Q&T steel bars:
(Chinese standard ) We can catch different property as per your requirements HBWRm,MPaRel,MPaA,% Z,%Aku,J≤     After annealing≥1080≥930≥12≥45≥63217
5.Quality control
1.Processing Line:
Iron - hot metal pretreatment - Converter - Refining --VD / RH- - Continuous Casting - Hot Rolling (KOCKS) - heat --UT Check - Processing and Distribution Center
Electric Furnace - Refining --VD / RH- - Continuous Casting - Hot Rolling (KOCKS) - heat --UT Check - Processing and Distribution Center
2.Gas content level:O2 - <20 ppm H2 - <2 ppm N2- <100 ppm
3.Grain Sizes:5-8

6.Delivery time of steel bar:
7-10days of stock,30 days after order confirmed for new produced .
7.Payment term:TT or LC
8.Free sample:Yes
9.steel bar Inspection: Spectral Tested, Microstructure Tested,Hardness Test,Macrostructure Test,UT test and so on. 
10.Mark: Heat Number,Weight,Sizes,Grade,etc