Diameter 80-1200 Mm Forged Steel Bars 30CrNiMo8 / 1.6580 Steel Grade

30CrNiMo8/1.6580 alloy steel price list hot forged, forged steel bar, DIA80-1200mm

1. Application: 30CrNiMo8/ DIN 1.6580 steel is widely used in the manufacture of the camshaft and connecting rod of engine parts, poor processability. 30CrNiMo8 is suitable 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.

Chemical composition: Carbon:0.26/0.34; Silicon:Max0.40; Manganese:0.50/0.80;

Chromium:1.80/2.20; Molybdenum:0.30/0.50; Nickel:1.80/2.20;

2.Equivalent Grades:

JIS/KS: SNCM431; GB:30Cr2Ni2Mo

3. Related Standards:

StandardEN 10083 – 3 : 2006 Steels for quenching and tempering. Technical delivery conditions for alloy steels

EN 10269 : 1999 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties
EN 10250 – 3 : 2000 Open steel die forgings for general engineering purposes. Alloy special steels.

4. Form & Size:

-DIN 30CrNiMo8 as Forged
1)manufactures and supplies 30CrNiMo8 forged steel round bars,square bar,flat bar,shaft,and blocks.
2)DIN 30CrNiMo8 alloy steel size available:

Round bar
Size: Dia.80-1,000mm
Length: 3,000-10,000mm
Square bar
Size: 150×150-600×600mm
Length: 3,000-8,000mm
(Forged flat bars,Blocks,Shafts and forging pieces can be customized)

5. Tolerances on Dimension & Straightness

1)Black surface:-0/+8mm;
2)Machined surface:-0/+3mm;
3)Deviation from straightness:with 360° rotary device 2mm/meter(max)

6. Quality Certificate:

1)Chemical composition:EN 10250-3
2)Mechanical properties
3)Non metallic inclusions
4)Grain size:According to DIN 50601 more than 5,preferred to 8;
5)Ultra sonic testing 360° complete round testing: Ultra sonic according to EN 10228-3

8. Forging:

1)Preheat 1.6580 forged alloy steel carefully.

2)Raise the forging temperature up to 1150-1200°C.

3)Keep the forging temperature above 850°C.

9. Heat Treatment: Hardening&Tempering(quenched and tempered and after stress relieved)

1)Heating 30CrNiMo8 steel uniformly to 850°C;
2)W-Nr 1.6580 alloy steel should be quenched in the oil;
3)Heat the material to the temperature 550°C;
4)Soak at this temperature for at least 2 hours;
5)1.6580 alloy steel should be cooled in the furnace.
(In case after QT a straightening process is necessary then the products should be tempered and distorsion-poor annealed with at least more than 625°C.)

Normalizing
1)heat DIN 1.6580 steel until the temperature up to 850°C;
2)Then cool W-Nr 30CrNiMo8 steel down to the room temperature(20°C) in the air.

Enquiry for DIN 30CrNiMo8 / 1.6580 steel Round Bars,Square/Flat Bars,Rollers,Shafts and Blocks.

Introduction: 30CrNiMo8 steel is one kind of nickel-molybdenum alloy steel accding to DIN standard,and 1.6580 steel is as per W-Nr Germany standard. 30CrNiMo8 is a heat treatable steel which contains nickel, chromium and molybdenum.DIN 1.6580 is known for its toughness and capability of developing high strength in the heat treated condition while retaining good fatigue strength.It is also a high strength steel and has good comprehensive mechanical properties.