Large Diameter Cold Drawn Tube
Classification :
PRODUCT DETAILS
Description
Cold-drawn steel pipe is a type of steel pipe, that is, it is classified according to different production processes, which is different from hot-rolled (expanded) pipes. It is made by multiple cold drawing processes during the expansion of the rough pipe billet or raw material pipe, usually carried out on a single-chain or double-chain cold drawing machine of 0.5 to 100T. In addition to general steel pipes, low and medium pressure boiler steel pipes, high pressure boiler steel pipes, alloy steel pipes, stainless steel pipes, petroleum cracking pipes, machined pipes, thick-walled pipes, small-diameter inner mold cold-drawn pipes and other steel pipes, cold-rolled (drawn) steel pipes also include carbon thin-walled steel pipes, alloy thin-walled steel pipes, stainless thin-walled steel pipes, and special-shaped steel pipes. (Customizable)
Standard
Tolerances on Out Diameter
| Standard | Outside Diameter (mm) | Tolerance |
| EN10216-1 EN10216-2 DIN 17175 |
All | ±0.5% (min.±0.30mm) |
| GB/T3087 | 10~30 | ±0.40mm |
| >30~50 | ±0.45mm | |
| >50 | ±1.0% | |
| GB/T 5310 GB/T9948 GB/T 6479 |
≤30 | ±0.20mm |
| >30~50 | ±0.30mm | |
| >50 | ±0.8% | |
| ASME SA-179M ASME SA-192M ASME SA-209M ASME SA-210M ASME SA-213M JIS G3461 JIS G3462 |
<25.4 | ±0.10mm |
| >25.4~38.1 | ±0.15mm | |
| >38.1~50.8 | ±0.20mm | |
| >50.8~63.5 | ±0.25mm | |
| >63.5~76.2 | ±0.30mm | |
| >76.2 | ±0.38mm | |
| ASME SA-106 ASME SA-335 |
≤48.3 | ±0.40mm |
| >48.3 | ±0.79mm |
Tolerances on Wall Thickness
| Standard | Outside diameterOD(mm) | Wall ThicknessT(mm) | Tolerance |
| DIN 17175 | - | All | ±10% (min.±0.2mm) |
| EN 10216-1 EN 10216-2 |
|||
| GB/T 3087 | - | 1.0~3.0 | +15%,-10% |
| - | >3 | +12.5%,-10% | |
| GB/T 5310 GB/T 9948 GB/T 6479 |
- | 2~3 | +12%,-10% |
| - | >3 | ±10% | |
| ASME SA-179M ASME SA-192M ASME SA-209M ASME SA-210M ASME SA-213M JIS G3461 JIS G 3462 |
≤38.1 | - | +20%,-0% |
| >38.1 | - | +22%,-0% | |
| ASME SA-106 ASME SA-335 |
All | ±10% |
Specification
| Size Range | Tolerance | |
| OD | 16-500mm | -0.035--+0.045mm |
| ID | 2-250mm | ±0.035mm |
| WT | 1-32mm | depends on sizes |
| Length | random or fixed length | +0-3.5mm |
| Straightness | 0.15:1000,0.4:1000,0.5:1000 1:1000 or customized | |
| Surface Roughness | Ra 0.02——0.4μm | |
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APPLICATION FIELD
Energy Transmission
Construction Engineering
Energy Transmission
Power Equipment
Interior Decoration
Architectural Decoration
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