With even wall thickness and excellent quality of inside and outside surface, the pipe widely applies to industries such as petrochemical, electric power, food, drinking water and so on. Its outside diameter is Ф8～Ф159mm and wall thickness is 0.5～4mm.
Specification of welded stainless steel pipe (mm)

Wall Thickness
Outside Diameter
0.5/0.6
0.8
1.0/0.9
1.2
1.5
1.8/1.65
2
2.5
3
4
8/10/16/19
21.3/22/25/25.4/28
33.4/33.7/35/42/48.3
50/50.8/54/56/57
76.1
88.9
108
133
139.7/140
159
Comparsion between Stainless Steel made in China and other countries

China
GB

0Cr18Ni9
(0Cr19Ni9)
00Cr19Ni10
(00Cr18Ni10)
0Cr25Ni20
0Cr17Ni12Mo2
00Cr17Ni14Mo2
0Cr19Ni13Mo3

Japan

JIS
SUS304
SUS304L
SUS310S
SUS316
SUS316L
SUS317
America
AISI/ASTM
304
304L
310S
316
316L
317
UNS Code
S30400
S30403
S31008
S31600
S31603
S31700

Germany

DIN17006
X5CrNi18-10
X2CrNi19-11
X12CrNi25-21

X5CrNiMo17-12-2
X5CrNiMo17-12-3
X2CrNiMo18-14-3
X5CrNiMo17-13
DIN17007
1.4301
1.4306
1.4845
1.4401/1.4436
1.4435
1.4449
China
00Cr19Ni13Mo3
00Cr17Ni14Mo3
(1Cr18Ni9Ti)
(0Cr18Ni9Ti)
0Cr18Ni11Nb
00Cr25Ni6Mo3N
00Cr22Ni5Mo3N
00Cr18Ni5Mo3Si2
Japan
SUS317L
321
347
DP6
DP2
DP1
America
317L
321
347
S31703
S34700
S32900
S31803
S31500
Germany
X2CrNiMo18-16-4
X12CrNiTi18-9
X6CrNiTi18-10
X6CrNiNb18-10
1.4438
1.4878
1.4541
1.4550
1.4460
1.4462
1.4417
Special products can also be produced upon agreement.
Executive Standard
Executive Foreign Standard (part)
Theoretical Weight

GB 12770-2002

GB 12771-2000

HG 20537.2-1992

HG 20537.3-1992

HG 20537.4-1992

ASTM A312/A312M
(ASTM SA312/SA312M)
ASTM A269/A269M
(ASTM SA269/SA269M)
ASTM A358/A358M
(ASTM SA358/SA358M)
JIS G 3463 JIS G 3468
DIN 17455 DIN 17457

Cr-Ni Austenitic stainless steel W=0.02491 s(D-s)
Cr-Ni-Mo Austenitic stainless steel W=0.02507 s(D-s)
In formula: W=theoretical weight per meter (kg/m)
S=wall thickness (mm)
D=outside diameter (mm)

Manufacturing flow of welded stainless steel pipe