
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 | Permissible deviation of the product analysis from specified limits
for the cast analysis |
C a | ≤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
TORICH INTERNATIONAL LIMITED
Who We are ?
-------A professional steel pipes materials inventor, manufacturer
and solution provider
Torich International Limited is a professional manufacturer
and exporter of steel pipes materials. It is an international
marketing and sales company specialized in steel tubes, which holds
the factories of Seamless Steel Tubes with Carbon and Alloy Steel
Grade, Welded Precision Steel Tubes,DOM Steel Tubes, Seamless &
Welded Stainless Steel Tubes with Nickel and Alloy Steel Grade.
Our factory was established since 1997, with the name of Haiyan
Sanxin Steel Pipe Co., Ltd. The factories’ technicians are of great
engineering experience in steel pipe industry for more than 20
years, which are in great command of production technology for Cold
Drawing and Cold Rolling. So we have strong technician team and
manufacturing capability.
What products we do?
------- Invent and produce various Precision Steel Pipes
Our steel pipes cover the following ranges:
Seamless Precision Steel Pipes
Bearing Steel Tubes
Welded Precision Steel Pipes, with DOM production
Seamless Heat Exchanger Steel Pipe
Seamless Boiler Steel Pipes
Honed Tubes
Hydraulic Cylinder Steel Tubes
Hydraulic Telescopic Cylinder Tubes
Seamless Structural Steel Pipes
Seamless Mechanical Steel Pipes
Seamless Alloy Steel Tubes & Pipes
Seamless Stainless Steel tubes
Welded Stainless Steel Tubes
Seamless Stainless Steel Tubes & Pipes
Welded Stainless Steel Tubes & Pipes
Seamless Carbon Steel Tubes & Pipes
Nickel Alloy Steel Tubes & Pipes
What TORICH do:
1. Producing Steel Tubes
2. Selling both on Domestic and International Market
3. Precisely Targeting Customers’ Requirement- Sourcing the right
factory for right products for Customers
Products Application:
Oil Cylinders
Air Cylinder,
Automotive Cylinder Liners
Boilers, Pressure Vessels
Shell & Heat Exchangers
Jack Lifting
Telescopic Systems
Pneumatic Cylinders
Agricultural Machineries
Size range is:
O.D. 4-350mm,
W.T. 0.5-30mm,
Length: according to customer’s requirement and agreement
Steel Grade:
Carbon Steel Grade:
ST35.8, ST37.0, ST44, ST52;
E155, E195, E215, E235, E275, E355;
195GH, P235GH, P265GH, P195TR1, P195TR2, P235TR1, P235TR2, P265TR1,
P265TR2;
SAE1010, SAE1020, SAE1026, SAE1035, SAE1045;
Carbon steel tube: SA178, A179, A192, A210, SA213, SA214, etc.
Alloy Steel Grade:
T2, T5, T9, T11, T12, T17, T21, T22, T91,T92, 15Mo3,16Mo3,
13CrMo44;
SAE4130, SAE4140, 40Cr, 40Cr4, 10CrMo910, 12CrMo910, 11CrMo910,
25CrMo4, 35CrMo, 35CrMo4, 42CrMo4, 34CrMo4, 20MnV, 20MnV6,20CrMn;
Carbon steel tube: A179,A192,A210,DIN17175,etc.
Bearing Steel Grades:
GCr15 52100 suj2 suj3 100Cr6 SKF3S SKF3S 20CrNiMo 8620H 4118H;
Nickel Alloy Grade:
N02200/2201, N04400, N06600, N06601, N06625, N06852, N06219,
N06690, N08800/8810/8811, N08825, N08028, N08535, N08904, N08925,
N08926, N010276, N06022, etc.
Austenitic/Super Austenitic Stainless Steel Grade:
304/304L, 316/316L, 314, 321, 347H, 316Ti, 316LMod, 317L/N, 310S,
253MA, 330, 904L, S31254, XM-19, etc.
Ferrite/Martensite Stainless Steel Grade:
TP410, TP405, TP420, TP430, TP430Ti, TP403, TP409, TP444, TP439,
TP446, etc.
Duplex/Super Duplex Stainless Steel Grade:
S31803, S32304, S31500, S32550, S32750, S32760, etc.
Corporate Culture:
We focus on Quality First, Quality Traceability, and Quality
Stability!
We focus on Customer First, People First, and Quality-Oriented!
Success:
First factory started in 1997, in the name of Torich , now covers
50000 square meters of factory building, with more than
100employees, and over 45 million RBM assets.
In 2008, we started the company of Torich International
Limited for international business and marketing.
Welcome partners from all over the world for long term cooperation!