ASTM A270 Sanitè Nerjaveèi asye Tib Dimansyon

Ki sa kiASTM A270 tib sanitè?

ASTM A270 is the standard specification for seamless and welded austenitic stainless steel sanitary tubing, designed for:Food and dairy systems,Pharmaceutical and biotech industries,Beverage and cosmetic processing,CIP/SIP pipelines,It emphasizes hygienic finish, cleanability, and dimensional precision, often accompanied by surface finishes such as mechanical polish or Electropolish .

ASTM A270 Sanitè Nerjaveèi asye Tib Table

Anba la a se yon tablo referans nan dyamèt komen deyò (OD) ak epesè miray pou ASTM A270 tib . Tout dimansyon yo nan pous ak milimèt .

Gwosè tib (OD)	Od (nan)	OD (mm)	Epesè miray (nan)	Miray (mm)	Orè ekivalan
1/2"	0.500	12.70	0.065	1.65	10s / 16 SWG
3/4"	0.750	19.05	0.065	1.65	10s / 16 SWG
1"	1.000	25.40	0.065 / 0.083	1.65 / 2.11	10s / 14 SWG
1-1/2"	1.500	38.10	0.065 / 0.083	1.65 / 2.11	10s / 14 SWG
2"	2.000	50.80	0.065 / 0.109	1.65 / 2.77	10s / 12 SWG
2-1/2"	2.500	63.50	0.083 / 0.120	2.11 / 3.05	14 SWG / 11 SWG
3"	3.000	76.20	0.083 / 0.120	2.11 / 3.05	14 SWG / 11 SWG
4"	4.000	101.60	0.083 / 0.120	2.11 / 3.05	14 SWG / 11 SWG
6"	6.000	152.40	0.109 / 0.134	2.77 / 3.40	10s / 10 SWG

SWG=Creole fil kalib; 1.65 mm=~ 16 SWG; 2.11 mm=~ 14 SWG

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Tolerans pou ASTM A270 tib sanitè

Paramèt	Tolerans
Dyamèt deyò (OD)	± 0.005 nan (± 0.13 mm)
Epesè miray	± 10%
Longè (estanda)	20 pye (6.1 m) o aza oswa koupe nan longè

Opsyon fini sifas (klas sanitè)

Fini sifas	Brutality (ra μin / μm)	Metòd
Sf1	Mwens pase oswa egal a 32 μin (0.8 μm)	Polonè mekanik
Sf4	Mwens pase oswa egal a 15 μin (0.4 μm)	Elèktropolize
Sf5/sf6	Mwens pase oswa egal a 20 μin oswa pi bon	Poli + pasivated / netwaye

Materyèl komen yo itilize pou A270 tib

Klas materyèl	UNS NO .	Deskripsyon
316L	S31603	Ekselan rezistans korozyon (pi pito)
304	S30400	Jeneral-bi pur
304L	S30403	Pi bon soudabilite