ASTM A213 vs . ASTM A249 issiqlik almashtirgich naychasi: toksiklik

Issiqlik almashinuvchilari uchun zanglamaydigan po'lat naychalarni tanlaganda, astmli, yuqori harorat va korroziy muhitda ASTM ARTM A213 va ASTM . . . . . . . . . . . . . . . . . . . . . . "ASTM ASTM ASTM, ular ishlab chiqarish usuli va bag'rikenglik sohasida sezilarli darajada farq qiladilar Boshqarish .

 

ASTM A213 vs . ASTM A249 issiqlik almashtirgich naychasi

Spetsifikatsiya	ASTM A213	ASTM A249
Naycha turi	Eskirgan yoki payvandlangan (sovuq chizilgan)	Payvandlangan (va agar belgilangan bo'lsa)
Ariza	Qozonxonalar, superaterlar, issiqlik almashuvchilar	Issiqlik birjalar, kondensatorlar, qozoncha trubalar
Bardoshlik qattiqligi	Qattiq (ayniqsa, OD va Devor uchun)	Kamroq qat'iy, yanada moslashuvchan
Ishlab chiqarish jarayoni	Aniq sovuq rasm	Avtomatik payvandlash + sovuq ishlash
Oddiy baholar	TP304, TP316, TP321, TP347	TP304, TP316, TP304L, TP316L

ASTM A213 vs . ASTM A249 issiqlik almashtirgich naychasi: toksiklik

Spetsifikatsiya	O'lchamlari dog 'dyuym	Bardoshlik
		O.D.		Devor
		Qo'shimcha	Minus	Qo'shimcha	Minus
ASTM-A -249	1.000 dan past	.004"	.004"	10%	l0%
Asme-sa -249	1.000-1500	.006"	.006"	10%	10%
Payvandlangan & sovuq ishladi	1.501 1999 dan	.008"	.008"	l0%	10%
Issiqlik almashtirgich naychasi	2.000 dan 2.499 gacha	.010"	.010"	10%	10%
O'rtacha devor	2.500 2.999	.012"	.012"	10%	10%
(1-eslatmaga qarang)	3.000 dan 4.000 gacha	.015"	.015"	10%	10%
	4.001 dan 5.000 gacha	.015"	.025"	10%	10%
ASTM-A -213	1.000 dan past	.004"	.004"	20%	0%
Asme-sa -213	1.000-1500	.006"	.005"	20%	0%
Sovuq ohangsiz tugadi	1.501 1999 dan	.008"	.008"	22%	0%
Issiqlik almashtirgich naychasi	2.000 dan 2.499 gacha	.010"	.010"	22%	0%
Minimal devor	2.500 2.999	.012"	.012"	22%	0%
(2-eslatmaga qarang)	3.000 dan 4.000 gacha	.015"	.015"	22%	0%
	4.001 dan 5.000 gacha	.015"	.025"	22%	0%
Izohlar (1) minimal devor + 18 {-0 . . . . . . ± 10% (3).