- 440B Stainless Steel round bar
- 440B Stainless Steel forging
- 440B Stainless Steel sheet
- 440B Stainless Steel flat bar
- 440B Stainless Steel pipe
440B Stainless Steel
We can produce 440B Stainless Steel stainless steel round rods, 440B Stainless Steel forging,sheet,coil,and profiledstrip,Deformed steel,flat steel,mould,steel wire,have all specifications. With DuoNian production experience, strict control 440B Stainless Steel chemical composition and 440B Stainless Steel 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.
440B 1.4112 Stainless Steel
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440B is a high carbon chromium stainless steel combining stainless steel properties with excellent hardness after heat treatment. 440B can achieve a hardness of up to 58 Rockwell HRc. 440B has similar corrosion resistance properties to type 410 stainless, with optimum cossision resistance of 440B achieved with a temper below about 400°C. For 440B to achieve best corrosion resistance, surfaces must be free of scale, lubricants, foreign particles, and coatings applied for drawing and heading. Due to its high carbon content 440B annealed stainless machines similar to a high speed steel annealed grade |
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Typical Analysis |
|
|
|
|
|
|
|
C. |
Mn. |
P. |
S. |
Si. |
Cr. |
Mo. |
|
0.75- |
1.00% |
0.04% |
0.03% |
1.00% |
16.00- |
0.75% |
|
0.95% |
max. |
max. |
min. |
max. |
18.00% |
max. |
Annealing
To achieve full anealing of 440B heat uniformly to 850 to 875°C. Soak and cool very slowly in the furnace.
Hardening
To heat treat 440B heat to 1010 to 1070°C, fully soak and quench in warm oil or cool in air. Be carefull not to overheat 440B or full hardness will not be obtained.
Tempering
When tempering 440B a Rockwell hardness of 58/59HRc can be obtained. Temper for at least one hour.
| Tempering °C |
300 |
400 |
500 |
600 |
700 |
| HRc |
58/59 |
58/57 |
53/54 |
53 |
54 |
Mechanical Properties at Room Temperature
(440B hardened at 1040°C, oil quenched and tempered at 300°C)
|
Tensile (UTS) |
|
1930 N/mm² |
|
0.2% Yield Strength |
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1860 N/mm² Min |
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Elongation (50.8mm) |
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3% min |
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Hardness |
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54HRc |
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Reduction of Area |
|
15 |
| Cr Alloy Martensitic Stainless Steel Specifications 440B UNS S44003 AISI 440B SAE 51440B ASTM A276 |
Mechanical properties
440B Stainless Steel Mechanical properties,Our production completely according to the 440B Stainless Steel standards to meet the 440B Stainless Steel mechanical performance, can also according to the customer request, to meet the requirements of customers of 440B Stainless Steel mechanical properties.
Heat treatment
440B Stainless Steel Heat treatment,Our production completely according to the 440B Stainless Steel standards to meet the 440B Stainless Steel Heat treatment, can also according to the customer request, to meet the requirements of customers of 440B Stainless Steel Heat treatment.
Machining
440B Stainless Steel Machining,Our production completely according to the 440B Stainless Steel standards to meet the 440B Stainless Steel Machining, can also according to the customer request, to meet the requirements of customers of 440B Stainless Steel Machining.
Welding performance
440B Stainless Steel Welding performance,Our production completely according to the 440B Stainless Steel standards to meet the 440B Stainless Steel Welding performance, can also according to the customer request, to meet the requirements of customers of 440B Stainless Steel Welding performance.
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