Home > Alloy Steel > 1.6580, DIN 30CrNiMo8, AISI 4340

1.6580, DIN 30CrNiMo8, AISI 4340

We can produce 1.6580, DIN 30CrNiMo8, AISI 4340 stainless steel round rods, 1.6580, DIN 30CrNiMo8, AISI 4340 forging,sheet,coil,and profiledstrip,Deformed steel,flat steel,mould,steel wire,have all specifications. With DuoNian production experience, strict control 1.6580, DIN 30CrNiMo8, AISI 4340 chemical composition and 1.6580, DIN 30CrNiMo8, AISI 4340 mechanical properties.From casting, forging, steel to hot and cold rolling process, heat treatment, etc, we have the control of professional engineers. We have advanced precision machining equipment, according to the requirements of users machining. in order to achieve the most satisfied with the user requirements.

Production specification

Round bar steel: 1mm to 3500mm
Square-shape steel: 1mm to 4000mm
Plate steel:0.1mm to 4000mm
Width: 10mm to 2500mm
Lenth: We can supply any lenth based on the customer's requirement.
Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes
Tubings: OD: φ6-1800mm, with wall thickness ranging from 1-35 mm.
Finished goods condition: hot forging/hot rolling + annealing/normalizing + tempering/quenching + tempering/any conditions based on the customer's requirement
Surface conditions: scaled (hot working finish)/ground/rough machining/fine machining/based on the customer's requirement
Furnaces for metallurgical processing: electrode arc + LF/VD/VOD/ESR/Vacuum consumable electrode.
Ultrasonic inspection: 100% ultrasonic inspection for any inperfections or based on the customer's requirementExcellent service for all kinds of industries,with advantages of technologies, equipment and price.
We serve you with our honesty, integrity, and professionality.

1.6580, DIN steel/30crnimo8.html" target="_blank" class="keylink">30CrNiMo8, AISI 4340

Designation by Standards

Brand Name	LH No.	Mat. No.	DIN	EN	AISI
VCNMO200	750	1.6580	steel/30crnimo8.html" target="_blank" class="keylink">30CrNiMo8	steel/30crnimo8.html" target="_blank" class="keylink">30CrNiMo8	4340

Chemical Composition (in weight %)

C	Si	Mn	Cr	Mo	Ni	V	W	Others
0.30	max. 0.40	0.45	2.00	0.40	1.90	-	-	-

Description
VCNMO200 is a heat treatable, low steel/" target="_blank" class="keylink">alloy steel containing nickel, chromium and molybdenum. It is known for its toughness and capability of developing high strength in the heat treated condition while retaining good fatigue strength.

Applications
For permanently stressed components with large cross sections for automotive and mechanical engineering. For economic performance under severe dynamic stress, parts must be designed for optimum strength or toughness.

Physical properties (avarage values) at ambient temperature
Modulus of elasticity [10³ x N/mm²]: 210
Density [g/cm³]: 7.82

Soft Annealing
Heat to 650-700^oC, cool slowly. This will produce a maximum Brinell hardness of 248.

Normalizing
Temperature: 850-880^oC.

Hardening
Harden from a temperature of 830-880^oC followed by oil quenching.

Tempering
Tempering temperature: 540-680^oC.

Mechanical Properties in Hardening and Tempering Condition

Diameter (mm)	0.2 % proof stress (N/mm²)	Tensile strength (N/mm²)	Elongation (%)	Reduction of area (%)	Notch impact energy (J)
<16	1050	1250-1450	9	40	35
17-40	1050	1250-1450	9	40	35
41-100	900	1100-1300	10	45	40
101-160	800	1000-1200	11	50	50
161-250	700	900-1100	12	50	50

Diagram Tempering Temperature - Mechanical Properties

Forging
Hot forming temperature: 1050-850^oC.

Machinability
Machining is best done with this alloy in the annealed or normalized and tempered condition. It can be machined by all conventional methods.

Corrosion Resistance
This is a low steel/" target="_blank" class="keylink">alloy steel and not a corrosion resistant alloy. Protective coating should be used.

Welding
The alloy can be fusion or resistance welded. Preheat and post heat weld procedures should be followed when welding this alloy by established methods.

Cold working
The VCNMO200 alloy may be cold worked, in the annealed condition, by conventional methods and tooling. It has good ductility.

Mechanical properties

1.6580, DIN 30CrNiMo8, AISI 4340 Mechanical properties,Our production completely according to the 1.6580, DIN 30CrNiMo8, AISI 4340 standards to meet the 1.6580, DIN 30CrNiMo8, AISI 4340 mechanical performance, can also according to the customer request, to meet the requirements of customers of 1.6580, DIN 30CrNiMo8, AISI 4340 mechanical properties.

Heat treatment

1.6580, DIN 30CrNiMo8, AISI 4340 Heat treatment,Our production completely according to the 1.6580, DIN 30CrNiMo8, AISI 4340 standards to meet the 1.6580, DIN 30CrNiMo8, AISI 4340 Heat treatment, can also according to the customer request, to meet the requirements of customers of 1.6580, DIN 30CrNiMo8, AISI 4340 Heat treatment.

Machining

1.6580, DIN 30CrNiMo8, AISI 4340 Machining,Our production completely according to the 1.6580, DIN 30CrNiMo8, AISI 4340 standards to meet the 1.6580, DIN 30CrNiMo8, AISI 4340 Machining, can also according to the customer request, to meet the requirements of customers of 1.6580, DIN 30CrNiMo8, AISI 4340 Machining.

Welding performance

1.6580, DIN 30CrNiMo8, AISI 4340 Welding performance,Our production completely according to the 1.6580, DIN 30CrNiMo8, AISI 4340 standards to meet the 1.6580, DIN 30CrNiMo8, AISI 4340 Welding performance, can also according to the customer request, to meet the requirements of customers of 1.6580, DIN 30CrNiMo8, AISI 4340 Welding performance.

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