- 1.8515, DIN 31CrMo12 round bar
- 1.8515, DIN 31CrMo12 forging
- 1.8515, DIN 31CrMo12 sheet
- 1.8515, DIN 31CrMo12 flat bar
- 1.8515, DIN 31CrMo12 pipe
1.8515, DIN 31CrMo12
We can produce 1.8515, DIN 31CrMo12 stainless steel round rods, 1.8515, DIN 31CrMo12 forging,sheet,coil,and profiledstrip,Deformed steel,flat steel,mould,steel wire,have all specifications. With DuoNian production experience, strict control 1.8515, DIN 31CrMo12 chemical composition and 1.8515, DIN 31CrMo12 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.
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.
1.8515, DIN 31CrMo12
Designation by Standards
| Brand Name | LH No. | Mat. No. | DIN | EN | AISI |
| 32CRMO12 | 785 | 1.8515 | 31CrMo12 | 31CrMn2 | - |
Chemical Composition (in weight %)
| C | Si | Mn | Cr | Mo | Ni | V | W | Others |
| 0.31 | max. 0.40 | 0.55 | 3.05 | 0.40 | max. 0.30 | - | - | - |
Description
Al-free nitriding steel for relatively large cross sections, and also for higher nitriding hardness as a result of its chemical composition.
Applications
Suitable for gear wheels, cylinders, drills, connecting rods, shafts, extruders, quides, thread gauges with relatively large-cross section.
Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 210
Density [g/cm3]: 7.80
Mecahnical Properties in Quenched and Tempered Condition
| Diameter in mm | 0.2 proof stress (N/mm2) | Tesnsile strength (N/mm2) | Elongation, min. (%) | Reduction, min. (%) | Notch impact energy (J) |
| 16-40 | 835 | 1030-1230 | 10 | - | 25 |
| 41-100 | 785 | 980-1180 | 11 | - | 30 |
| 101-160 | 735 | 930-1130 | 12 | - | 30 |
| 161-250 | 675 | 880-1080 | 12 | - | 30 |
Soft Annealing
Heat to 650-700oC, cool slowly. This will produce a maximum Brinell hardness of 248.
Hardening
Harden from a temperature of 870-910oC followed by oil quenching. Hardness after quenching is 64-66 HRC.
Nitriding
Temperature: 480-570oC. Hardness after nitridng is 480-570 HV1.
Tempering
Tempering temperature: 520-570oC.
Tempering Temperature (oC) vs. Hardness (HRC)
| 100oC | 200oC | 300oC | 400oC | 500oC | 600oC |
| 64 | 62 | 60 | 57 | 53 | 42 |
Diagram Tempering Temperature - Mechanical Properties
Forging
Hot forming temperature: 1100-900oC.
Machinability
No data.
Mechanical properties
1.8515, DIN 31CrMo12 Mechanical properties,Our production completely according to the 1.8515, DIN 31CrMo12 standards to meet the 1.8515, DIN 31CrMo12 mechanical performance, can also according to the customer request, to meet the requirements of customers of 1.8515, DIN 31CrMo12 mechanical properties.
Heat treatment
1.8515, DIN 31CrMo12 Heat treatment,Our production completely according to the 1.8515, DIN 31CrMo12 standards to meet the 1.8515, DIN 31CrMo12 Heat treatment, can also according to the customer request, to meet the requirements of customers of 1.8515, DIN 31CrMo12 Heat treatment.
Machining
1.8515, DIN 31CrMo12 Machining,Our production completely according to the 1.8515, DIN 31CrMo12 standards to meet the 1.8515, DIN 31CrMo12 Machining, can also according to the customer request, to meet the requirements of customers of 1.8515, DIN 31CrMo12 Machining.
Welding performance
1.8515, DIN 31CrMo12 Welding performance,Our production completely according to the 1.8515, DIN 31CrMo12 standards to meet the 1.8515, DIN 31CrMo12 Welding performance, can also according to the customer request, to meet the requirements of customers of 1.8515, DIN 31CrMo12 Welding performance.
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