Steel 13KH14N3V2FR (ЭИ736; 513Л)

Designation

Name	The value
Designation GOST Cyrillic	13Х14Н3В2ФР
Designation GOST Latin	13X14H3B2FP
Transliteration	13H14N3V2FR
By chemical elements	13Cr14Н3W2VB

Name	The value
Designation GOST Cyrillic	ЭИ736
Designation GOST Latin	EI736
Transliteration	EhI736
By chemical elements	-

Name	The value
Designation GOST Cyrillic	513Л
Designation GOST Latin	513L
Transliteration	513L
By chemical elements	513

Description

13KH14N3V2FR steel is used: for the production of highly loaded parts, shafts, discs, tie rods, blades, etc., continuously operating at temperatures up to +550 °C in high humidity conditions; bars and strips steel hot-rolled and forged, used for the manufacture of parts of structures in aircraft; shaped castings for the aviation industry.

Note

Steel heat-resistant martensitic class.
The recommended maximum operating temperature for a long time +550 °C.
Temperature intense scaling in air +750 °C.

Standards

Name	Code	Standards
Sheets and strips	В23	GOST 103-2006
Bars and shapes	В22	GOST 1133-71, GOST 2590-2006, GOST 2591-2006
Sheets and strips	В33	GOST 4405-75
Classification, nomenclature and General rules	В30	GOST 5632-72
Bars and shapes	В32	GOST 5949-75, TU 14-1-3297-82, TU 1-6-763-76, TU 14-11-245-88
Classification, nomenclature and General rules	В20	OST 1 90005-91
Castings with special properties (iron and steel)	В83	OST 1 90090-79
Blanks. Of the workpiece. Slabs	В21	OST 1 90176-75
Blanks. Of the workpiece. Slabs	В31	OST 3-1686-90, TU 14-1-4492-88
Processing of metals by pressure. Forgings	В03	TU 14-1-1530-75, TU 14-1-2902-80

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Cu	N	Al	V	B	Ti	Mo	W
TU 14-1-3297-82	0.1-0.16	≤0.025	≤0.03	≤0.6	13-15	≤0.6	2.8-3.4	Rest	≤0.25	-	-	0.18-0.28	≤0.004	≤0.05	≤0.3	1.6-2.2
OST 1 90090-79	0.09-0.15	≤0.025	≤0.025	0.2-0.8	11.5-13.5	0.2-0.8	2.3-3	Rest	≤0.3	≤0.05	≤0.1	0.18-0.28	0.003-0.006	≤0.05	≤0.2	1.6-2.2
GOST 5632-72	0.1-0.16	≤0.025	≤0.03	≤0.6	13-15	≤0.6	2.8-3.4	Rest	≤0.3	-	-	0.18-0.28	≤0.004	≤0.05	≤0.3	1.6-2.2
TU 14-1-2902-80	0.1-0.16	≤0.02	≤0.03	≤0.6	13-15	≤0.6	2.8-3.4	Rest	≤0.3	-	-	0.18-0.28	≤0.004	≤0.05	≤0.3	1.6-2.2

Fe is the basis.
According to TU 14-1-2902-80 the chemical composition is given for 13Х14Н3В2ФР-Ш.
According to TU 14-1-3297-82 the chemical composition is given for 13Х14Н3В2ФР-Ш.
According to OST 1 90090-79 the chemical composition is given for 13Х14Н3В2ФРЛ (ЭИ736Л).

Mechanical properties

Section, mm	t отпуска, °C	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	d	y, %	KCU, kJ/m²	HB, MPa
Gradation of performance properties of the finished heat-treated parts for OST 1 90005-91
-	-	-	880-1080	-	-	-	-	269-331
-	-	-	1180-1370	-	-	-	-	294-363
The casting and the ceramic mold. Quenching in oil with 1030-1050 °C + vacation at 560-590 °C (2 hours), air cooling
-	-	≥981	≥1177	-	≥8	≥26	≥196	294-363
The casting and the ceramic mold. Quenching in oil with 1030-1050 °C + vacation at 680 °C (2 hours), air cooling
-	-	≥736	≥883	-	≥9	≥30	≥245	269-331
Forging + Bars hot rolled and forged according to GOST 5949-75. Annealing in air or in oil with 1040-1060° C + Vacation, air cooling
	540-580	≥885	≥1130	≥12	-	≥50	≥690	331-388
	640-680	≥735	≥930	≥14	-	≥55	≥882	-
Forgings, rods and strip, hot-rolled and forged up to 160 mm. Hardening in air or in oil with 1050±10° C + Vacation at 640-680 °C, air cooling
	-	≥735	≥930	≥10	-	≥50	≥490	285-341
	-	≥735	≥930	≥14	-	≥55	≥890	285-341
Forgings. Annealing in air or in oil at 1050±10° C + vacation at a temperature of 540-580 °C, air cooling
	-	≥885	≥1130	≥12	-	≥50	≥680	311-376
Forming at OST 1 90176-75. Quenching in oil with 1040-1060 °C + Vacation
	640-680	≥736	≥932	≥14	-	≥55	≥882	285-341
	540	≥883	≥1128	≥12	-	≥50	≥686	331-388

Description mechanical marks

Name	Description
s_T\|s_0,2	Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2%
σ_U	Limit short-term strength
d₅	Elongation after rupture
d	Elongation after rupture
y	The relative narrowing
KCU	Toughness
HB	Brinell hardness number