Seamless Pipes & Tubes
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1. Main steel types and typical grades:
Item No.
Steel types
(AISI) Typical steel codes
1
Austenite
301, 310S, 304, 304L, 304H, 316, 316L, 316Ti,
317, 317L, 321, 321H, 347H, 904L
2
Duplex
S31803, S32205, S31500, S31750,
S31760, S31900, S32304
3
Incoloy
800, 800H, 800HT, 825, 901, 925, 926
4
Inconel
600, 601, 625, 718
5
Monel
400, K500
6
Nickel
200, 201
7
Hastelloy
B, B-2, C-4, C-22, C-276

2. Main Production Standard:
Item No.
Standard type
Standard
Stainless steel seamless pipes & tubes(Cold drawn, Cold rolled, Bright precision)
EN
EN 10216-5, EN 10216-2
DIN
DIN 17456, DIN 17458
ASTM/ASME
A213, A269, A511, A789, A790, A335, A376
SA213, SA312, SA789, SA790, SA335, SA376
SB161, SB163, SB167, SB338, SB668, SB677
JIS
JIS G3459, G3463
GB
GB/T 14975, T14976, GB13296, GB5310,GB9948

3. Production specification:
Item No.
Products
Specification
1
Cold drawn pipes & tubes
(OD) φ6 - φ1016 mm, (WT) φ1 - φ50.01mm
2
Cold rolled pipes & tubes
(OD) φ16 - φ325 mm, (WT) φ1 - φ30mm

Products
Diameter(mm)
Thickness(mm)
Length(m)
Stainless steel seamless pipes & tubes(Cold drawn, Cold rolled, Bright precision)
6 - 20
0.8 - 3.5
Max: 240
20 - 32
1.5 - 8
Max: 24
32 - 159
1.5 - 35
Max: 12
168 - 325
3 - 40
Max: 12
325 - 830
5.5 - 45
Max: 8.5
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