- NA21 round bar
- NA21 forging
- NA21 sheet
- NA21 flat bar
- NA21 pipe
NA21
We can produce NA21 stainless steel round rods, NA21 forging,sheet,coil,and profiledstrip,Deformed steel,flat steel,mould,steel wire,have all specifications. With DuoNian production experience, strict control NA21 chemical composition and NA21 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.
NA21
C(％): ≤0.10
Si(％): ≤0.50
Mn(％): ≤0.50
P(％)≤: 0.015
S(％)≤: 0.015
Cr(％): 20.00～23.00
Ni(％): ≥58.00
Mo(％): 8.00～10.00
Al(％): ≤0.40
Cu(％): —
Ti(％): ≤0.40
Fe(％): ≤5.00
其他(％): Co≤1.00,Nb+Ta 3.15～4.15
Mechanical properties
NA21 Mechanical properties,Our production completely according to the NA21 standards to meet the NA21 mechanical performance, can also according to the customer request, to meet the requirements of customers of NA21 mechanical properties.
Heat treatment
NA21 Heat treatment,Our production completely according to the NA21 standards to meet the NA21 Heat treatment, can also according to the customer request, to meet the requirements of customers of NA21 Heat treatment.
Machining
NA21 Machining,Our production completely according to the NA21 standards to meet the NA21 Machining, can also according to the customer request, to meet the requirements of customers of NA21 Machining.
Welding performance
NA21 Welding performance,Our production completely according to the NA21 standards to meet the NA21 Welding performance, can also according to the customer request, to meet the requirements of customers of NA21 Welding performance.
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