GB 6479 16Mn 1Seamless Steel Tubes For High-pressure Chemical Fertilizer Equipments
Product Details
seamless steel pipe
,seamless carbon steel tube
GB6479 High-pressure Chemical Fertilizer Equipments Seamless Steel Tubes
Application:Seamless steel tubes of best quality carbon steel ,low alloy steel and stainless steel for high-pressure chemical fertilizer equipment and piping as well as for other chemical equipment.
OD:14-426mm WT:0.5-45mm Length:4-12m
Manufacture method:The manufacture method of steel and tube blank shall meet what specified in YB/T 5137.Steel tubes shall be manufacturd by seamless method of hot rolling (extrude pressing,expansion)or cold drawn(rolling). In case the demander assigns one manufacture method,it shall be specified in the contract.
Allowable Deviation of OD and Wall Thickness
| Type of steel | Size of steel tube | Allowable deviation | ||
| Common class | High class | |||
| Hot rolled (Extrude pressed) Steel tube
| OD,D | ≤159 | ±1.0%(Minimum value is ±0.5mm) | ±0.75%(Minimum value is ±0.3mm) |
| ＞159 | ±1.0% | ±0.90% | ||
| Wall thickness,S |
≤20
＞20
| +15% -10%
+12.5% -10.0% |
±10%
±10% | |
| Cold drawn (rolled)steel tubes | OD,D | 14~30 ＞30~50 ＞50 | ±0.20mm ±0.30mm ±0.75% | ±0.15mm ±0.25mm ±0.6% |
| Wall thickness | ≤3.0 | +12.5% -10% | ±10% | |
| ＞3.0 | ±10% | ±7.5% | ||
| Note:Allowable deviation for OD of hot expanded steel tubes is ±1.0%,allowable deviation for wall thickness is±15%. | ||||
Brand Number and Chemical Composition of Steel
| Brand number | Chemical composition,% | ||||||||||
| C | Si | Mn | Cr | Mo | V | W | Nb | Ni | P | S | |
| Not more than | |||||||||||
| 10 | 0.07~ 0.14 | 0.17~ 0.37 | 0.35~ 0.65 | 0.030 | 0.030 | ||||||
| 20 | 0.07~ 0.24 | 0.17~ 0.37 | 0.35~ 0.65 | 0.030 | 0.030 | ||||||
| 16Mn | 0.12~ 0.20 | 0.20~ 0.60 | 1.20~ 1.60 | 0.030 | 0.030 | ||||||
| 15MnV | 0.12~ 0.18 | 0.20~ 0.60 | 1.20~ 1.60 | 0.04~ 0.12 | 0.030 | 0.030 | |||||
| 10MoWVNb | 0.07~ 0.13 | 0.50~ 0.80 | 0.50~ 0.80 | 0.60~ 0.90 | 0.30~ 0.50 | 0.50~ 0.90 | 0.06~ 0.12 | 0.030 | 0.030 | ||
| 12CrMo | 0.08~ 0.15 | 0.17~ 0.37 | 0.40~ 0.70 | 0.40~ 0.70 | 0.40~ 0.55 | 0.030 | 0.030 | ||||
| 15CrMo | 0.12~ 0.18 | 0.17~ 0.37 | 0.40~ 0.70 | 0.80~ 1.10 | 0.40~ 0.55 | 0.030 | 0.030 | ||||
| 1Cr5Mo | ≤0.15 | ≤0.50 | ≤0.60 | 4.00~ 6.00 | 0.45~ 0.60 | ≤0.60 | 0.030 | 0.030 | |||
| 12Cr2Mo | 0.80~0.15 | ≤0.50 | 0.40~ 0.70 | 2.0~ 2.50 | 0.90~1.20 | 0.030 | 0.030 | ||||
| 12SiMoVNb | 0.08~ 0.14 | 0.50~ 0.80 | 0.60~ 0.90 | 0.90~ 1.10 | 0.30~ 0.50 | 0.04~ 0.08 | 0.030 | 0.030 | |||
| Brand number | Residual element,% ≯ | ||||
| Ni | Cr | Cu | Mo | V | |
| 10 | 0.25 | 0.15 | 0.20 | - | - |
| 20 | 0.25 | 0.25 | 0.20 | 0.15 | 0.08 |
| Others | 0.30 | 0.30 | 0.20 | - | - |
-
Auto Parts ASTM A513 Cold Rolling Welded Steel Tubes with DOM Production
Auto Parts ASTM A513 Welded Steel Tubes with DOM production ASTM A513 Electric-Resistance-Welded Carbon and Alloy Steel Mechanical Tubing Applications: for Machinery, Mechanical Engineering 1. Standard: ASTM A513 cold rolling welded precision steel tubes 2. Steel Grade: SAE1010, SAE1020, other materials upon agreement with customers. 3. Production method: Cold rolling on the weled steel tubes, to reach high accuracy on the OD and WT tolerance 4. Size range: O.D.:6-350mm W.T. -
25mm Diameter Bright Annealing Seamless Steel Tube for Hydraulic Systems
EN10305-1 E235 E355 NBK Bright Annealing Precision Steel Pipes for Hydraulic Systems EN10305-1 NBK Bright Annealed Precision steel pipes for Hydraulic system OD:4-80 (mm) WT0.5-10 (mm) Length 1000-12000mm Product name: Seamless Precision Steel Pipe Application: for hydraulic systems precision steel pipes for Hydraulic system OD (mm) WT (mm) Length (mm) 4 0.5 5800-6000 4.0 1.0 5800-6000 5.0 1.0 5800-6000 6.0 1.0 5800-6000 6.0 1.5 5800-6000 8.0 1.0 5800-6000 9.5 0.89 5800-6000 -
Precision Seamless Black Phosphating Steel Tube for Hydraulic Systems
Steel Pipes with high precision for Hydraulic Systems with Black Phosphating surface Black Phosphated Hydraulic Tubes with High Precision and tight tolerance, the tubes are produced by precision cold drawn and cold rolling, then bright annealed in a protected atmosphere, afterwards it is blackphosphated on the surface Production process: DIN series tubes, cold drawn and bright annealed precision seamless steel tube is used as the tube to be phosphated. The phosphorization is -
Precision Seamless Galvanized Steel Tubes DIN2391 EN103052 ST35.0 ST37
Precision Seamless Galvanized Steel Tubes DIN2391 EN103052 ST35.0 ST37 Production Process: Cold rolling by Cold pilger machine and Cold rolling machine,galvanized and zinc plated could be applied. Cold Rolled and Galvanized Steel Tube Production process: DIN highly accurate, cold rolled and bright seamless steel tube is used as the tube to be galvanized. The outer wall of tube is electroplated. The caps are covered at two ends of tube to prevent from the dust. Main Features:
