NEW-ERA STEEL TUBE TECHNOLOGY CO.,LTD
| 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 |
| Brand Name | New-Era |
| Model Number | Seamless hot rolled |
| Certification | ISO9001/TS16949 |
| Place of Origin | China |
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Product Specification
| 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 |
| Brand Name | New-Era | Model Number | Seamless hot rolled |
| Certification | ISO9001/TS16949 | Place of Origin | China |
| High Light | square section steel tube ，rectangular steel tubing | ||
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
Company Details
Business Type:
Manufacturer
Year Established:
1988
Total Annual:
100000000-15000000
Employee Number:
150~200
Ecer Certification：
Verified Supplier
Zhejiang New Era Steel Tube Technology Co., Ltd is one of the best seamless steel tube products manufacturer and exporter in china. Our main products include cold drawn and cold rolled seamless steel tubes .We can manufacture non-standard and special application tubes, also according to the int... Zhejiang New Era Steel Tube Technology Co., Ltd is one of the best seamless steel tube products manufacturer and exporter in china. Our main products include cold drawn and cold rolled seamless steel tubes .We can manufacture non-standard and special application tubes, also according to the int...
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