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| Categories | Hollow Section Steel Tube |
|---|---|
| Brand Name: | New-Era |
| Model Number: | Seamless hot rolled |
| Certification: | ISO9001/TS16949 |
| Place of Origin: | China |
| MOQ: | 1ton |
| Price: | Negotiation |
| Payment Terms: | T/T, L/C |
| Supply Ability: | 2000tons per month |
| Delivery Time: | 20-30days |
| Packaging Details: | bundles packing with plastic bags wrapped |
| Standard: | EN10210-1 EN10210-2 |
| Steel grade: | S275NH S355NH DIN1.0493 1.0539 1.8750 1.8953 |
| Size: | Dia:30-600mm |
| Shape: | Round,rectangular,Square,hexagonal |
| Company Info. |
| NEW-ERA STEEL TUBE TECHNOLOGY CO.,LTD |
| Verified Supplier |
| View Contact Details |
| Product List |
EN10210-1 S275NH S355NH hot rolled seamless heavy wall hollow
section steel tube , hollow bars
DIN EN 10210-1 Hot finished Heavy Wall Steel Tubing of non-alloy
and fine grain steels
DIN EN 10210-1
Hot finished structural hollow sections of non-alloy and fine grain
steels
Part 1: Technical delivery conditions
Part 2: Tolerances, dimensions and sectional properties
Cold forming:
Process is done at ambient temperature
Structrual hollow section manufacturing process:
Structural hollow sections are manufactured by seamless or by
welding.
Welded sections manufactured by contiuous process.
Electric welded hollow sections are supplied without trimming the
internal weld bead.
Delivery conditon:
Qualities JR, J0, J2 and K2 - Hot finished
Qualities N and NL - normalized. (normalized rolled)
- for accelerated cooling +DC
- for quenching and tempering +QT
Surface conditon:
The hollow sections have a smooth surface corresponding to the
manufacturing method used; bumps, cavities or shallow longitudinal
grooves resulting from the manufacturing process are permissible,
provided the thickness is within tolerance.
End: Square cut
TABLE 1 Permissible deviations of the product analysis from the
specified limits of the cast analysis specified
| Element | Permissible maximum content in the cast analysis % by mass | Permissible deviation of the product analysis from specified limits
for the cast analysis % by mass |
| C | ≤0.20 | ﹢0.02 |
| ＞0.20 | ﹢0.03 | |
| Si | ≤0.60 | ﹢0.05 |
| Mn | Non-alloy ≤1.60 | ﹢0.10 |
| Fine grain ≤1.70 | ﹣0.05 ﹢0.10 | |
| P | Non-alloy ≤0.040 | ﹢0.010 |
| Fine grain ≤0.035 | ﹢0.005 | |
| S | Non-alloy ≤0.040 | ﹢0.010 |
| Fine grain ≤0.030 | ﹢0.005 | |
| Nb | ≤0.060 | ﹢0.010 |
| V | ≤0.20 | ﹢0.02 |
| Ti | ≤0.03 | ﹢0.01 |
| Cr | ≤0.30 | ﹢0.05 |
| Ni | ≤0.80 | ﹢0.05 |
| Mo | ≤0.10 | ﹢0.03 |
| Cu | ≤0.35 | ﹢0.04 |
| 0.35＜Cu≤0.70 | ﹢0.07 | |
| N | ≤0.025 | ﹢0.002 |
| AItotal | ≥0.020 | ﹣0.005 |
a For S235JRH in thicknesses ≤16mm, the permissible deviation=0.04%C,and for thicknesses＞16mm and ≤40mm the permissible deviation=0.05%C | ||
Normative References:
EN 287-1 , Qualification test of welders – Fusion welding – Part 1:
Steels
EN 10002-1 , Metallic materials – Tensile testing – Part 1: Method
of test at ambient temperature
EN 10020:2000 , Definition and classification of grades of steel
EN 10021:1993 , General technical delivery requirements for steel
and iron products
EN 10027-1 , Designation systems for steels – Part 1: Steel names
EN 10027-2 , Designation systems for steels – Part 1: Numerical
system
EN10045-1, Metallic materials - Charpy impact test - Part 1: Test
method
EN10052, Vocabulary of heat treatment terms for ferrous products.
Bibliography,
DIN EN 10025-2, Hot rolled products of structural steels - Part 2:
Technical delivery conditions
for non-alloy structrual steels
DIN EN 10025-3, Hot rolled products of structure steels - Part 3:
Technical delivery conditions
for normalized/normalized rolled weldable fine grain structure
steels
DIN EN 10210-2, Hot finished structural hollow sections of
non-alloy and fine grain steels -
Part 2: Tolerances, dimensions and sectional properties
DIN EN 10219-1, Cold formed welded structural hollow sections of
non-alloy and fine grain
steels - Part 1: Technical delivery conditions
DIN EN 10219-2, Cold formed welded structural hollow sections of
non-alloy and fine grain
steels - Part 2: Tolerances, dimensional and sectional properties
Previous Edition:
DIN EN 10210: 1994-09
DIN EN 17120: 1984-06
DIN EN 17121: 1984-06
DIN EN 17123: 1986-05
DIN EN 17124: 1986-05
DIN EN 17125: 1986-05
|
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