DIN EN10210-1 Hot Finished Heavy Wall Steel Tubing

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 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

Production Steel Tube:

Eddy Current Test and Ultrasonic Test:

Packing:

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