• 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 round bar
  • 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 forging
  • 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 sheet
  • 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 flat bar
  • 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 pipe
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1.4903, DIN X10CrMoVNb9-1, AISI A213/P91

We can produce 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 stainless steel round rods, 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 forging,sheet,coil,and profiledstrip,Deformed steel,flat steel,mould,steel wire,have all specifications. With DuoNian production experience, strict control 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 chemical composition and 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 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.

1.4903, DIN X10CrMoVNb9-1, AISI A213/P91

Designation by Standards

Brand Name LH No. Mat. No. DIN EN AISI
PT950 950 Approx. 1.4903 X10CrMoVNb9-1 - A213/P91

Chemical Composition (in weight %)

C Si Mn Cr Mo Ni V W Others
0.10 0.35 0.45 8.50 0.95 max. 0.40 0.22 - Nb=0.53, N=0.05, Al=max. 0.040

Description
PT950 is creep-resistant material that is generally used for temperatures up to 630oC.

Applications
Boiler tube sector and for superheated steam fittings. 

Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 218, 207(200oC), 190(400oC), 162(650oC)
Density [g/cm3]: 7.7
Thermal conductivity [W/m.K]: 29.2 
Specific heat capacity[J/g.K]: 0.46

Coefficient of Linear Thermal Expansion 10-6 oC-1

20-200oC 20-400oC 20-650oC
11.3 12.0 12.7

Annealing
Heat to 730-780oC, cool slowly in furnace or air. Structure is martensite.

Hardening
Harden from a temperature of 1040-1090oC followed by air or oil quenching.

Mechanical properties at ambient temperature
Condition: Normalised and annealed, for size <"130 mm
0.2 % proof stress: 450 N/mm2
Tensile strength: 630-730 N/mm2
Elongation: 19% (Longit.), 17% (Transv.)
Notch impact energy (ISO-V): 40J (Longit.), 27J (Transv.)

0.2 % proof stress in N/mm2 vs. Temperature in oC

100oC 150oC 200oC 250oC 300oC 350oC 400oC 450oC 500oC 550oC 600oC
410 395 380 370 360 350 340 320 300 270 215

Approximate values for creep rupture strength

Mean Creep Rupture Strength in N/mm2 vs. Temperature in oC

Hours 500oC 520oC 540oC 560oC 580oC 600oC 620oC 640oC 660oC
10 000 289 252 216 182 151 123 99 79 62
100 000 258 220 183 150 120 94 73 56 42
200 000 246 208 171 139 110 86 65 49 35

Forging
Hot forming temperature: 1100-800oC, cool slowly. Note: Quenching and tempering treatment must always be carried out after hot forming. 

Machinability
Metal-cutting machinning is the sae as for speial engineering steel gardes of corresponding strength. 

Welding
The material displays good weldability. Welding must be followed by stress relief annealing with slow cooling. Filler material is MTS 3 or Thermanit from Thyssen.
  

Mechanical properties

1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 Mechanical properties,Our production completely according to the 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 standards to meet the 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 mechanical performance, can also according to the customer request, to meet the requirements of customers of 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 mechanical properties.

Heat treatment

1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 Heat treatment,Our production completely according to the 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 standards to meet the 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 Heat treatment, can also according to the customer request, to meet the requirements of customers of 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 Heat treatment.

Machining

1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 Machining,Our production completely according to the 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 standards to meet the 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 Machining, can also according to the customer request, to meet the requirements of customers of 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 Machining.

Welding performance

1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 Welding performance,Our production completely according to the 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 standards to meet the 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 Welding performance, can also according to the customer request, to meet the requirements of customers of 1.4903, DIN X10CrMoVNb9-1, AISI A213/P91 Welding performance.

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