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Valve Steels Stainless Round Bar Precision Round Bar Corrosion Resistant

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Valve Steels Stainless Round Bar Precision Round Bar Corrosion Resistant

Brand Name : UST

Model Number : 20KH13 ( 20Х13 )

Certification : ISO,BV,SGS,Mill Test Certificate

Place of Origin : China

MOQ : 1 Ton/Tons

Payment Terms : L/C, T/T

Supply Ability : 1000 MT per month

Delivery Time : 5-8 work days

Packaging Details : In bundles, plywood cases, wooden cases with water-proof package,or as customer required for stainless square steel bar

Shape : Round,Square,Hexagonal,Flat

Standard : ASTM,AISI,DIN,JIS,EN

Special use : Valve Steels

Technique : Cold Rolled Hot Rolled,Polished,Pickled etc.,Bright,Brush

Price term : CIF CFR FOB Ex-Work,CIF,CFR,FOB,Ex-work

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stainless steel Characteristics for grade 20KH13 ( 20Х13 )

Grade : 20KH13 ( 20Х13 ) ( 2Х13 )
Substitute: 12Х13, 14Х17Н2
Classification : Corrosion-resistant high-temperature steel
Equivalent grades: 20KH13 ( 20Х13 )

Chemical composition in % for grade 20KH13 ( 20Х13 )
C Si Mn Ni S P Cr
0.16 - 0.25 max 0.6 max 0.6 max 0.6 max 0.025 max 0.03 12 - 14


Temperature of critical points for grade 20KH13 ( 20Х13 ).
Ac1 = 820 , Ac3(Acm) = 950 , Ar1 = 780


Mechanical properties under Т=20oС for grade 20KH13 ( 20Х13 )
Assortment Dimension Direct. sв sT d5 y KCU Heat treatment
- mm - MPa MPa % % kJ / m2 -
Sheet, GOST 5582-75 1 - 4 dihedral 490 20 Drawing 740 - 800oC,
Bar, GOST 5949-75 650-830 440-635 10-16 50-55 590-780 Guenching and drawing
Bar, GOST 18907-73 510-780 14
Bar, GOST 18968-73 670 490-655 18 50 690 Normalizing and drawing
Forging, GOST 25054-81 to 600 longitudinal 647 441 14-16 40-50 390-640 Guenching and drawing
Sheet trick, GOST 7350-77 510 375 20 Normalizing
Brinell hardness for 20KH13 ( 20Х13 ) (annealing) , Bar GOST 5949-75 HB 10 -1 = 126 - 197 MPa
Brinell hardness for 20KH13 ( 20Х13 ) (normalize, tempering) , Bar GOST 18968-73 HB 10 -1 = 207 - 241 MPa
Brinell hardness for 20KH13 ( 20Х13 ) , Forging GOST 25054-81 HB 10 -1 = 197 - 248 MPa


Technological properties for grade 20KH13 ( 20Х13 )
Weldability: limited weldability.
Flakes : not predisposed
Temper brittleness: predisposed


Physical properties for grade 20KH13 ( 20Х13 )
T E 10- 5 a 10 6 l r C R 10 9
Grade MPa 1/Grade Watt/(m·Grade) kg/m3 J/(kg·Grade) Ohm·m
20 2.18 23 7670 588
100 2.14 10.1 26 7660 461 653
200 2.08 11.2 26 7630 523 730
300 2 11.5 26 7600 565 800
400 1.89 11.9 26 7570 628 884
500 1.81 12.2 27 7540 691 952
600 1.69 12.8 26 7510 775 1022
700 12.8 26 7480 963 1102
800 13 27 7450
900 28
T E 10- 5 a 10 6 l r C R 10 9


Equivalent steels for grade 20KH13 ( 20Х13 )
Warning! Indicated both exact and nearest equivalents.
USA Germany Japan France England European Italy Spain China Sweden Poland Czechia
- DIN,WNr JIS AFNOR BS EN UNI UNE GB SS PN CSN
420
S42000
1.4021
X20Cr13
X30Cr13
SUS420J1
X20Cr13
Z20C13
420S29
420S37
En56C
1.4021
X20Cr13
X20Cr13
F.3402
X20Cr13
2Cr13
2303
2H13
17022

Specification :
Mechanical properties :
sв - Tensile strength , [MPa]
sT - Yield stress, [MPa]
d5 - Specific elongation at fracture , [ % ]
y - Reduction of area , [ % ]
KCU - Impact strength , [ kJ / m2]
HB - Brinell hardness , [MPa]

Physical properties :
T - Test temperature , [Grade]
E - Young modulus , [MPa]
a - Coefficient of linear expansion (range 20o - T ) , [1/Grade]
l - Termal (heat) condition coefficient , [Watt/(m·Grade)]
r - Density , [kg/m3]
C - Specific heat ( range 20o - T ), [J/(kg·Grade)]
R - Electrical resistance , [Ohm·m]

Weldability :
without limitations - welding is done without heating and subsequent heat treeting
limited weldability - welding is possible under heating up to 100-120 grade and subsequent heat treeting
hard weldability - obtaining the quality welding needs the additional operations:heating up to 200-300 grade; the heat treeting ia annealing


20KH13 ( 20Х13 ) - Corrosion-resistant high-temperature steel: chemical composition, mechanical and physical properties, hardness
Database of steels and alloys (Marochnik) contains information about chemical composition and properties more then 3000 steels and alloys


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