ASTM A688 / A688M Tubes chauffants à air austénitiques en acier inoxydable soudés Austenitic

Type: Tubes en acier inoxydable Grade: 300 Série Forme: U Canal Traitement de surface: Brillant Standard: ASTM, AISI Certification: ISO, SGS, ASTM Technique: À froid Origine: Chine ASTM A688 / A688M Austénitique en acier inoxydable soudé
Norme: ASTM A688 / A688M
Grade: 304, 304L, 316, 316L, XM-29, etc.
Taille: OD: 6-50.8mm (1/4 "-2") Épaisseur de paroi: 0.4-2.0mm
Application: Tubes chauffants à air austénitique soudés Austenitic

Composition chimique:

Elem-ent	Grade	TP304	TP304L	TP304LN	TP316	TP316L	TP316LN	TP XM-29	TP 304N	TP 316N	---	--	---	---
%	UNS designation	S30400	S30403	S30453	S31600	S31603	S31653	S24000	S30451	S31651	N08367	N08926	S31254	S32654
C, max		0.08	0.035	0.035	0.08	0.035	0.035	0.060	0.08	0.08	0.030
Mn, max		2.00	2.00	2.00	2.00	2.00	2.00	11.50-14.50	2.00	2.00	2.00
Ph, max		0.040	0.040	0.040	0.040	0.040	0.040	0.060	0.040	0.040	0.040
S, max		0.030	0.030	0.030	0.030	0.030	0.030	0.030	0.030	0.030	0.030
Si,,max		0.75	0.75	0.75	0.75	0.75	0.75	1.00	0.75	0.75	1.00
Ni		8.00-11.00	8.00-13.00	8.00-13.00	10.00-14.00	10.00-15.00	10.00-15.00	2.25-3.75	8.00-1.00	10.00-14.00	23.50-25.50
Cr		18.00-20.00	18.00-20.00	18.00-20.00	16.00-18.00	16.00-18.00	16.00-18.00	17.00-19.00	18.00-20.00	16.00-18.00	20.00-22.00
Mo		---	---	---	2.00-3.00	2.00-3.00	2.00-3.00	---	---	2.00-3.00	6.00-7.00
N		---	---	0.10-0.16	---	---	0.10-0.16	0.20-0.40	0.10-0.16	0.10-0.16	0.18-0.25
Cu		---	---	---	---	---	---	---	---	---	0.5-1.5

Tolérance de taille:
Tolérance de longueur de longueur de tube

Leg Length, ft (m)	Plus Tolerance, in (mm)
<=20 (6)	1/8  (3.2)
>20(6), <=30(9)	5/32  (4.0)
>30 (9), <=40 (12.2)	3/16  (4.8)

L'impartition de la tolérance des limites

Tube OD, in, (mm)	Tolerance, in, (mm)
<=5.8 (15.9)	0.010 (0.25)
>5.8 (15.9), <=1 (25.4)	0.016 (0.4)

Propriété mécanique:

Grade	304 316	304L 316L	XM-29	304N 316N	304LN 316LN	---		---
UNS GRADE	S30400 S31600	S30403 S31603	S24000	S30451 S31651	S30453 S31653	N08367 t<=0.187	N08367 t>0.187	N08926	S31254 t<=0.187	S31254 t>0.187	S32654
tensile strength, min ksi (MPa)	75 (515)	70 (485)	100 (690)	80 (550)	75 (515)	100(690)	95 (655)	94 (650)	100 (690)	95 (655)	120 (825)
Yield strength, min ksi (MPa)	30 (205)	25 (175)	55 (380)	35 (240)	30 (205)	45 (310)	45 (310)	43(295)	45 (310)	45 (310)	65(450)
Elongation in 2 in. or 50mm, min, %	35	35	35	35	35	30	30	35	35	35	40

Groupes de Produits : Tube en acier inoxydable > Tube de chaudière en acier inoxydable