Alloy 36NICRTIAL (ЭИ702)

Designation

Name	The value
Designation GOST Cyrillic	36НХТЮ
Designation GOST Latin	36HXTJu
Transliteration	36NHTYu
By chemical elements	36NiCrTeAl

Name	The value
Designation GOST Cyrillic	ЭИ702
Designation GOST Latin	EI702
Transliteration	EhI702
By chemical elements	-

Description

Alloy 36NICRTIAL used: for the manufacture of elastic and provocatively elements operating at temperatures up to +250 °C.

Note

Alloy non-magnetic corrosion-resistant dispersion-hardened with a temporary resistance 1180−1570 MN/m² (120−160 kgf/mm²), with the normal elasticity modulus 186500−196000 MN/m² (19000−20000 kgf/mm²).

Standards

Name	Code	Standards
Classification, nomenclature and General rules	В30	GOST 10994-74
Tape	В34	GOST 14117-85, TU 14-1-1124-74, TU 14-1-4618-89
Wire, steel, alloy	В73	GOST 14118-85
Bars and shapes	В32	GOST 14119-85, TU 14-1-1129-74, TU 14-11-245-88
Processing of metals by pressure. Forgings	В03	ST ЦКБА 010-2004
Thermal and thermochemical treatment of metals	В04	ST ЦКБА 016-2005
Sheets and strips	В33	TU 14-1-2858-79
Blanks. Of the workpiece. Slabs	В31	TU 14-1-3904-84
Welding and cutting metals. Soldering, riveting	В05	TU 14-1-997-2012

Chemical composition

Standard	C	S	P	Mn	Cr	Si	Ni	Fe	Al	Ti
GOST 10994-74	≤0.05	≤0.02	≤0.02	0.8-1.2	11.5-13	0.3-0.7	35-37	Rest	0.9-1.2	2.7-3.2

Fe is the basis.

Mechanical properties

Section, mm	t отпуска, °C	s_T\|s_0,2, MPa	σ_U, MPa	d₅, %	d	d₁₀	y, %	KCU, kJ/m²	HRC
Blank pieces of pipe fittings and welded assemblies at ST CKBA 016-2005. Quenching in water from 920-950 °C (delay of 1-3 min/mm the largest section) + Aging at 650-670 °C (delay of 2-4 h), air cooling
≤60	-	≥637	≥1029	≥14	-	-	≥25	≥490	32-41.5
Cold-rolled steel strip (samples) in the delivery state according to GOST 14117-85. Quenching in water from 920-950 °C + Aging at 650-670 °C (exposure 4 h)
0.1-0.9	-	-	≥1180	-	≥5	-	-	-	-
1-2	-	≥785	≥1180	-	≥6	-	-	-	≥35
Cold-rolled steel strip as supplied by GOST 14117-85
0.1-0.9	-	-	950-1350	-	≥1	-	-	-	-
1-2	-	-	950-1350	-	≥2	-	-	-	-
0.1-0.9	-	-	880-1100	-	≥2	-	-	-	-
1-2	-	-	880-1100	-	≥3	-	-	-	-
Cold-rolled steel strip as supplied by GOST 14117-85. Quenching in water from 950-970 °C
0.1-2	-	-	590-880	-	≥25	-	-	-	-
Cold-rolled steel strip as supplied by GOST 14117-85. Aging (in the graph, the temperature of leave is specified aging temperature and aging time)
-	650-700, 4ч	785-980	1130-1320	-	≥5	-	-	-	-
-	650-670, 2ч	1130-1320	1320-1470	-	≥3	-	-	-	-
-	650-670, 2ч	1030-1180	1230-1370	-	≥5	-	-	-	-
Wire cold drawn nagarebana in the state of delivery according to GOST 14118-85. Aging at 600-670 °C (exposure 2 hours), air cooling (indicated by the value δ100)
0.3-5	-	-	≥1400	-	≥1	-	-	-	-
Wire cold drawn polonikova in the state of delivery according to GOST 14118-85. Aging 630-670 °C (exposure 2 hours), air cooling (indicated by the value δ100)
≥3	-	-	≥1270	-	≥5	-	-	-	-
0.3-3	-	-	≥1370	-	≥5	-	-	-	-
Bars and rods, hot-rolled, forged and with special surface finish GOST 14119-85. Quenching in water from 920-950 °C + Aging at 650-670 °C (delay of 2-4 h), air cooling
1-30	-	≥735	≥1130	-	-	-	≥22	≥390	-
31-60	-	≥365	≥1030	-	-	≥14	≥25	≥490	-
61-120	-	≥490	≥880	-	-	-	≥35	≥590	-

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
d₁₀	Elongation after rupture
y	The relative narrowing
KCU	Toughness
HRC	Rockwell hardness (indenter diamond spheroconical)