SAE 4340 Steel High strength and tenacity, good hardenability ISO 9001:2008 certificated

SAE 4340 Steel

1. Equivalent grades : DIN 1.6582 / 34CrNiMo6, EN24

2. Chemical composition:

Grade	C	Si	Mn	Cr	Mo	Ni	P	S
4340	0.38-0.43	0.15-0.35	0.60-0.80	0.70-0.90	0.20-0.30	1.65-2.00	0.03max	0.03max

3. Specification:

Steel Properties		special alloy steel, supplied in quenched and tempered conditions. High strength and tenacity, good hardenability.
Applications		heavily loaded parts for mechanical engineeringand motor construction.
Delivery condition		annealed/quenched and tempered

4. Heat Treatment:

5. Production:

                                     Smelting - electric furnace

                        Refining - ESR, produce high cleaness steel

                                                        ESR

                                                      ESR

                            Forging - 8 tons electro-hydraulic hammer

                             Annealing - soft annealing & spheroidizing

                              Heat treatment - Quenching + Tempering

                              Band saw cutting - max. width 1300mm

   

                            Peeling - semi-automatic grinding machine

                                    Milling Machine - steel flats

                        Turning lathe - for the machining of steel round bar

6. Quality Control:

                                            Chemical Analysis

                                          Spectrometer analysis

                                                  UT inspection