420 1.2083
420 1.2083 properties and heat treatment forged piece, Including 420 1.2083 application and specifications, We have all specifications，Including 420 1.2083 steel plate, 420 1.2083 sheet, 420 1.2083 square steel, 420 1.2083 flat bar,420 1.2083 round bar,420 1.2083 forgings, we can own production and sales.
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forged/hot rolling/ extrusion of steel
We can produce the 420 1.2083 has the following specifications:
Round bar steel: 1mm to 3000mm
Square-shape steel: 1mm to 2000mm
Plate steel:0.1mm to 2500mm
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: φ6-219 mm, 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.
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Chemical composition % of the ladle analysis of grade 420 1.2083 and Standards
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1.2083 is a chromium alloyed stainless plastic mould steel, which is characterised by good polishability, good hardenability giving high hardness, with fair corrosion resistance.
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TYPICAL ANALYSIS |
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C.
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Si.
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Mn.
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Cr.
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0.38%
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0.75%
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0.50%
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13.50%
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Annealing:
Hardening:
Pre heat to 600-700°C until heated through. (Austenitizing temperature 1025°C.) Continue heating to the final hardening temperature of 980-1050°C and allow the component to be heated through. Protect against decarburisation by using neutral salt bath, controlled atmosphere furnace or vacuum. Air cool or quench in oil.
Tempering:
Heat uniformly and thoroughly at the selected tempering temperatures and hold at heat for one hour per inch of total thickness. Double tempering is recommended.
| Tempering °C |
100 |
200
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300
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400
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500
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600
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HRc
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56
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54
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52
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54
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53
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34
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Temperature |
Time
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Approximate Depth of Case
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525°C
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20 hours
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0.20mm
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525°C
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30 hours
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0.30mm
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525°C
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60 hours
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0.40mm
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Welding:
Due to the high risk of crack formation Welding of 1.2083 stainless steel should be avoided, if possible. When, howe ver Welding is essential, the following serves as a guide:
A. Welding of soft annealed 1.2083 stainless steel.
· Preheat to 300 - 500°C
· Weld at 300-500°C
· Immediately stress relieve
B. Repair Welding of 1.2083 stainless steel in hardened and tempered condition.
· Preheat to the tempering temperature (min. 200°C) previously used.
· Start Welding at tempering temperature
· Re heat immediately to tempering temperature, but max. 300°C. Soaking time 3 hours.
· Cool in air to approximately 80°C.
· Re heat immediately to tempering temperature, but max. 300°C. Soaking time 3 hours.
Electrode: Hard facing electrode.
| Physical Properties: |
Temperature |
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| (50 HRc) |
20°C
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200°C
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400°C
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Density
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kg/m³
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7.8
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7.75
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7.70
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Coefficient of thermal expansion
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per °C
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-
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11.0 x 10-6
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11.4 x 10-6
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from 20°
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Thermal conductivity
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cal/cm.s °C
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54.9 x 10-3
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57.3 x 10-3
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59.7 x 10-3
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Modulus of elasticity
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Kp/mm²
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21 900
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21 400
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19 400
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N/mm²
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215 000
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210 000
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190 000
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Specific Heat
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cal/g °C
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0.110
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Tensile Strength
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kp/mm²
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180
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168
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158
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N/mm²
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1 780
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1 650
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1 550
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Yield Point
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kp/mm²
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150
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139
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129
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N/mm²
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1 460
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1 360
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1 250
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Reduction of Area
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%
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30
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40
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40
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Elongation
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%
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10
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12
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12
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Machining performance
Download 420 1.2083 the mechanical properties of the report, the report provides detailed performance analysis and application. Download >>
Principal Design Features
One of the most widely used precipitation hardening grades in the business. While soft and ductile in the solution annealed condition, it is capable of high properties with a single precipitation or aging treatment. Characterized by good corrosion resistance, high harness, toughness and strength.
Machinability
Long, gummy chips characterize this alloys machinability. It can be machined in the annealed condition, however condition H1150M will yield best results. Post machining solution treatment of parts will be required prior to final hardening if machining in this condition.
Heat Treatment
CONDITION A--Soak at 1900 F (1038 C) for 30 minutes and cool below 60 F (16 C) for complete martensite transformation. CONDITION H 950- Treat Condition A material at 900 F(482 C) for 1 hour, air cool.. CONDITION H925, H1025, H1075, H1100, H1150- Soak solution treated material for 4 hours at specified temperature, air cool, CONDITION H1150M- Soak solution treated material at 1400 F (760 C) for 2 hours, air cool, then re-heat to 1150 F (620 C) for 4 hours and air cool.
Welding
Successfully welded by common fusion and resistance methods, this alloy should not be joined by oxyacetylene welding. AWS E/ER630 filler metal is recommended if required.
Forging
Soak for 1 hour at 2150 F (1177 C) prior to forging. Do not work below 1850 F (1010 C). Post-work solution treatment is required prior to final hardening.