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Description

24Ni8 Alloy Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Alloy Steel: 24Ni8
Category Type Steel Grade Standard Country Application
Steel GradesAlloy Steel 24Ni8
X9CrNi 18-8
X12CrNi 17-7
1.4401
X4CrNiMo 17-12-2
1.4518
X8CrNb 18
20Mn6
1.1169
14Ni6
1.5622

Chemical composition(mass fraction)(wt.%) of the 24Ni8

C
Si
Mn
P
S
Cr Ni
0.20-0.28  0.15-0.35  0.60-0.80  0.035  0.035   0.30 1.90-2.20 
Mo Al Cu Nb Ti V Ce
             
N Co Pb B Other    
             
             

 

(1) the hot working temperature / ℃ : 1100 ~ 850

Heat treatment temperature / ℃ | is fire: 850 ~ 880

Heat treatment temperature / ℃ | quenching: 830 ~ 880 water or oil

Heat treatment temperature / ℃ | tempering: 500 ~ 650

Normal temperature and low temperature mechanical properties | state: at room temperature

Normal temperature and low temperature mechanical properties | σ b/MPa: 590 ~ 740

Normal temperature and low temperature mechanical properties | σ s frequency/MPa: 410

Normal temperature and low temperature mechanical properties | δ 5 (%) frequency: 20

Normal temperature and low temperature mechanical properties | ψ (%) frequency: 55

Normal temperature and low temperature mechanical properties | AKV (DVM) / J: 96

German DIN of low-temperature steel GangHao and chemical composition
Material name: ensure that its quench-hardening ability structural steel grades: 20 MnTiBHA standard GB/T 5216-1985 "chemical ingredients: carbon C: 0.17 ~ 0.23 Si Si: 0.17 ~ 0.37 Mn Mn: 1.20 ~ 1.55 sulfur S: allow residual content than 0.030 P P: allow residual content than 0.030 chromium Cr: allow residual content than 0.035 Ni Ni: allow residual content than 0.030 copper Cu: allow residual content than 0.025 titanium Ti: 0.04 ~ 0.10 B B: 0.0005 ~ 0.0035" mechanical properties: impact toughness values α kv (J/cm2) : frequency 69 (7) hardness: annealing or high temperature tempering, than 187 HB, diameter of 4.4 mm creasing quartile sample size: sample blank dimensions for 15 mm standard and metallographic organization "heat treatment, heat treatment specification: is fire, 930 ~ 950 ℃, air cold; Quenching, 860 + 20 ℃, oil cold; Tempering, 200 + 20 ℃, air or water. "Delivery status: rolling or forging system state delivery. According to buyer's request can also heat treatment (is fire, annealed or high temperature tempering) state delivery. Delivery status should be indicated in the contract.
 

th: We can supply any lenth based on the customer's requirement.

Forging: Shafts with flanks/pipes/tubes/slugs/donuts/cubes/other shapes

Tubings: OD: φ4-410 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 requirement

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Mechanical properties

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

Heat treatment

ViTa llium Heat treatment,Our production completely according to the ViTa llium standards to meet the ViTa llium Heat treatment, can also according to the customer request, to meet the requirements of customers of ViTa llium Heat treatment.

Machining

ViTa llium Machining,Our production completely according to the ViTa llium standards to meet the ViTa llium Machining, can also according to the customer request, to meet the requirements of customers of ViTa llium Machining.

Welding performance

ViTa llium Welding performance,Our production completely according to the ViTa llium standards to meet the ViTa llium Welding performance, can also according to the customer request, to meet the requirements of customers of ViTa llium Welding performance.
 

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ELECTRODE ARC FURNACE; (NON)VACUUM INDUCTION FURNACE; LF; VD; VOD; ESR; CONSUMABLE ELECTRODE VACUUM FURNACE.

Mechanical Properties of steel grade 24Ni8

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
854 (≥) 786 (≥) 32 34 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade 24Ni8

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
34 - -     0.43 -  
928 785 - 23.3 111   -  
752 - 34 41.2   443 421

Heat Treatment of steel grade 24Ni8

Heat treated : 1545°C - 1647°C

Technological Curves of steel grade 24Ni8


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