• ASTM A437 B4B round bar
  • ASTM A437 B4B forging
  • ASTM A437 B4B sheet
  • ASTM A437 B4B flat bar
  • ASTM A437 B4B pipe
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ASTM A437 B4B

We can produce ASTM A437 B4B stainless steel round rods, ASTM A437 B4B forging,sheet,coil,and profiledstrip,Deformed steel,flat steel,mould,steel wire,have all specifications. With DuoNian production experience, strict control ASTM A437 B4B chemical composition and ASTM A437 B4B 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.
Product Description:
Stainless steel
AISI 422 Stainless Steel
Designations
Germany: DIN 1.4935 
Japan: JIS SUN 616 
United States: AMS 5655 , ASTM A565 , SAE 51422 , SAE J467 , UNS S42200
 Chemical Composition
Element
Weight %
C
 0.20-0.25 
 1.00 
 0.75 
 11.0-13.0 
Ni
 0.5-1.0 
P
 0.025 
S
 0.025 
 0.75-1.25 
W
 0.75-1.25 
V
 0.15-0.3 
Mechanical Properties
Properties
 Conditions
T (°C)
Treatment
Density (×1000 kg/m3)
7.8
25
 
Poisson's Ratio
0.27-0.30
25
 
Elastic Modulus (GPa)
190-210
25
 
Tensile Strength (Mpa)
965 
25 
intermediate and hard tempers (bar) 
Yield Strength (Mpa)
760 
Elongation (%)
13 
Reduction in Area (%)
30 
Thermal Properties
Properties
 Conditions
T (°C)
Treatment
Thermal Expansion (10-6/ºC)
11.2 
0-100 more
 
Thermal Conductivity (W/m-K)
23.9 
100 more
 
Specific Heat (J/kg-K)
460 
0-100 
 


 

Mechanical properties

ASTM A437 B4B Mechanical properties,Our production completely according to the ASTM A437 B4B standards to meet the ASTM A437 B4B mechanical performance, can also according to the customer request, to meet the requirements of customers of ASTM A437 B4B mechanical properties.

Heat treatment

ASTM A437 B4B Heat treatment,Our production completely according to the ASTM A437 B4B standards to meet the ASTM A437 B4B Heat treatment, can also according to the customer request, to meet the requirements of customers of ASTM A437 B4B Heat treatment.

Machining

ASTM A437 B4B Machining,Our production completely according to the ASTM A437 B4B standards to meet the ASTM A437 B4B Machining, can also according to the customer request, to meet the requirements of customers of ASTM A437 B4B Machining.

Welding performance

ASTM A437 B4B Welding performance,Our production completely according to the ASTM A437 B4B standards to meet the ASTM A437 B4B Welding performance, can also according to the customer request, to meet the requirements of customers of ASTM A437 B4B Welding performance.

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