ST52 Honed Seamless Steel Pipe for Hydraulic Cylinder
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~
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 |
Changzhou Newnuro International Trading Co., Ltd.
Changzhou Newnuro Enterprise Co., Ltd.
Starting trade service from 2002 and manufacturing in 2006, Changzhou Newnuro is a parts supplier for hydraulic cylinder and pneumatic cylinder application. In addition to the 3000 standard parts, we also offer our customers tailor-made articles or assemblies that are for special application. The main products are:
--- Assembly hydraulic cylinder and components
--- Pneumatic cylinder accessories
--- Rod ends ( ball joint ends )
--- Spherical plain bearing ( radial ball joint )
--- Hydraulic fittings and adaptors
--- Control cable and fittings for automobile or agricultural machinery
--- PTO Shaft for Agricultural machinery
---Gear and Gear BOX
---Farm Blade
We were awarded the certification of quality management system ISO 9001: 2000 in Sept. 2006.
With well experienced staff of engineers and international salesmen, Changzhou Newnuro has earned customers from global markets, products are exproted to Aisa, Europe, North America, South America, South Africa...etc.
With strict quality control before shipment during production, we provide products with geat quality and competitive price.
We know what the customer expects. Quality alone is not the only criteria, flexibility and service also turn a supplier into a partner.
Audited Supplier 
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