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GB3087 Chinese national standard
GB5310 Chinese national standard
ASME SA210 Boiler and pressure vessel code of ASME
ASME SA213 Boiler and pressure vessel code of ASME
DINl7175 Deutsches industrial standard~
Application:
Used as the pipes on the heated side of low and medium pressure boilers(normally with operating pressure not higher than 5.88Mpa and
operating temperature below 450 oc);as the pipes on the heated sides of high·pressure boilers,economizers,overheaters,reheaters and pipes
for petrochemical industry(with the operating pressure above 9.8Mpa and operating temperature ranging between 450~C~650~C1
Specifications of major steel:
Processing form
I.D.mm
Length
Straightness
I.D. tolerance
I.D. Roughness(RA)
Cold-rolled
30-100
≤12M
0.3-1.0/1000
H8-H10
0.4-1.6um
Cold-drawn
30-250
≤12M
H8-H10
0.8-1.6um
Hone
40-500
≤12M
H8-H9
0.4-0.8um
SRB
50-250
≤9M
H8
0.1-0.4um
Tube shall have a smooth internal and external surface consistent with cold working  process, tube inner surface should be free from rust, scratches and other surface
irregularities.
Model NO.: Out diameter 15mm-500mm
Cross-Section Shape: Round
Connection Type: Welding
Tolerance: H8-H9 & H9-H10
Straightness: 0.3-0.5/M, 0.5-1.0/M
Roughness: Ra0.2-0.4
Weight: 4.00-5000.00kg
Usage: Special Purpose, Machinery Industry, Chemical Indu
Package: Steel Belt
Machining: Cold Draw
Size: 30-416mm
Section Shape: Round
Technique: Cold Rolled, Cold Drawn, Honed
Trademark: NEWNURO or OEM
Transport Package: Standard Seaworthy Packing
Specification: Standard: ASTM210
Origin: Jiangsu, China
HS Code: 7304319000
ST52 Honed Seamless Steel Pipe for Hydraulic Cylinder
Delivery condition:BKS