• 1.2357, DIN 50CrMoV13-1, AISI S7 round bar
  • 1.2357, DIN 50CrMoV13-1, AISI S7 forging
  • 1.2357, DIN 50CrMoV13-1, AISI S7 sheet
  • 1.2357, DIN 50CrMoV13-1, AISI S7 flat bar
  • 1.2357, DIN 50CrMoV13-1, AISI S7 pipe
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1.2357, DIN 50CrMoV13-1, AISI S7

We can produce 1.2357, DIN 50CrMoV13-1, AISI S7 stainless steel round rods, 1.2357, DIN 50CrMoV13-1, AISI S7 forging,sheet,coil,and profiledstrip,Deformed steel,flat steel,mould,steel wire,have all specifications. With DuoNian production experience, strict control 1.2357, DIN 50CrMoV13-1, AISI S7 chemical composition and 1.2357, DIN 50CrMoV13-1, AISI S7 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.

1.2357, DIN 50CrMoV13-1, AISI S7 

Designation by Standards

Brand Name LH No. Mat. No. DIN EN AISI
OH253 253 1.2357 50CrMoV13-1 - S7

Chemical Composition (in weight %)

C Si Mn Cr Mo Ni V W Others
0.50 0.50 0.70 3.25 1.50 - 0.25 - -

Description
S7 is a general purpose air hardening steel/" target="_blank" class="keylink">tool steel having high impact and shock resistance. It has good resistance to softening at moderately high temperatures. This combination of properties makes it suitable for many hot-work and cold-work applications.

Applications
Chisels, rivet sets, punches, driver bolts. Hot punching and shearing. 

Physical properties (avarage values) at ambient temperature
Density [g/cm3]: 7.86

Coefficient of Linear Thermal Expansion 10-6 oC-1

20-100oC 20-200oC 20-300oC 20-400oC 20-500oC 20-600oC 20-700oC
11.7 12.9 13.3 13.8 14.1 14.3 14.6

Continuous Cooling Transformation (CCT) Diagram

Time-Temperature Transformation (TTT) Diagram


Click the image to enlarge the diagram.

Soft Annealing
Heat to 810-850oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 229.

Stress Relieving
To relieve machining stresses for greater accuracy in hardening - first rough machine, then anneal below the critical at 649/677oC a minimum of one hour at temperature and cool slowly, then finish machine.

Hardening
Harden from a temperature of 930-960oC followed by air or oil quenching. Hardness after quenching is 59-61 HRC.

Tempering
Tempering temperature: 150-400oC.

Tempering Temperature (oC) vs. Hardness (HRC)

100oC 200oC 250oC 300oC 400oC 500oC 550oC 600oC 650oC
59 57 55 54 53 52 52 48 41

Tempering Diagram

Forging
Hot forming temperature: 1066-1121oC. 

Machinability
The machinability of S7 alloy may be rated at about 75/80 % of a 1 % carbon steel/" target="_blank" class="keylink">tool steel. 

Corrosion Resistance 
Corrosion resistance of this alloy is better than that of plain carbon steels. However it will rust unless given protective treatment.
  

Mechanical properties

1.2357, DIN 50CrMoV13-1, AISI S7 Mechanical properties,Our production completely according to the 1.2357, DIN 50CrMoV13-1, AISI S7 standards to meet the 1.2357, DIN 50CrMoV13-1, AISI S7 mechanical performance, can also according to the customer request, to meet the requirements of customers of 1.2357, DIN 50CrMoV13-1, AISI S7 mechanical properties.

Heat treatment

1.2357, DIN 50CrMoV13-1, AISI S7 Heat treatment,Our production completely according to the 1.2357, DIN 50CrMoV13-1, AISI S7 standards to meet the 1.2357, DIN 50CrMoV13-1, AISI S7 Heat treatment, can also according to the customer request, to meet the requirements of customers of 1.2357, DIN 50CrMoV13-1, AISI S7 Heat treatment.

Machining

1.2357, DIN 50CrMoV13-1, AISI S7 Machining,Our production completely according to the 1.2357, DIN 50CrMoV13-1, AISI S7 standards to meet the 1.2357, DIN 50CrMoV13-1, AISI S7 Machining, can also according to the customer request, to meet the requirements of customers of 1.2357, DIN 50CrMoV13-1, AISI S7 Machining.

Welding performance

1.2357, DIN 50CrMoV13-1, AISI S7 Welding performance,Our production completely according to the 1.2357, DIN 50CrMoV13-1, AISI S7 standards to meet the 1.2357, DIN 50CrMoV13-1, AISI S7 Welding performance, can also according to the customer request, to meet the requirements of customers of 1.2357, DIN 50CrMoV13-1, AISI S7 Welding performance.

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