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Seamless / Welded Octangon Steel Pipe GB/T 3094 Cold Drawn Tube 10# 20# Q195 Q235 Q345

Seamless or Welded Octangon Steel Pipe GB/T 3094 Cold Drawn Tube 10# 20# Q195 Q235 Q345

Octagon Steel Tube is mostly seamless tube or welded tube, produced according to the Chinese Standard GB/T 3094, which is a standard for cold drawn shaped steel tubes.

Octagon Steel Tube is widely used in structural parts, tool and machinery parts. And the barrel compared to stainless steel Pipes generally have a greater moment of inertia and section modulus, flexural torsional greater capacity, can greatly reduce the structural weight, saving steel.

Steel Grade:

10#/ 20#/ 35#/ 45#/ Q195/ Q215/ Q235/ Q295/ Q345/ Q390

Application:

Used in structural parts, tool and machinery parts

Production method:

Cold drawn

Tube Type:

Seamless tube according to the Chinese standard GB/T 3094, or welded tube according to customers' request

Tolerance:

According to the following tables, or according to customers’ request.

Tolerance for the width
Size(mm)		Tolerance(mm)
Size(mm)		General	High Grade
Width A / B	≤30	±0.30	±0.20
	＞30-50	±0.40	±0.30
	＞50-75	±0.80%A ±0.80%B	±0.70%A ±0.70%B
	＞75	±1%A ±1%B	±0.8%A ±0.8%B

Tolerance for wall thickness
Size(mm)		Tolerance(mm)
Size(mm)		General	High Grade
Width A / B	≤1.0	±0.18	±0.12
	＞1.0-3.0	+15% WT -10% WT	+12.5% WT -10% WT
	＞3.0	+12.5% WT -10% WT	±10% WT

Edge bumpiness for the Tube:

According to the following tables, or according to customers’ request.

Edge bumpiness
Size(mm)		Tolerance(mm)
Size(mm)		General	High Grade
Width A / B	≤30	0.20	0.10
	＞30-50	0.30	0.15
	＞50-75	0.80%	0.50%
	＞75	0.90%	0.60%

Bending:

For General tube, the bending should be ≤4.0mm/m, and the total straightness should be ≤0.4%.

For High Grade tube, the bending should be ≤2.0mm/m, and the total straightness should be ≤0.2%.

Mechanical Property:

Steel Grade	Tensile Strength MPa	Yield Strength MPa	Elongation %
Steel Grade	No less than
10	335	205	24
20	390	245	20
35	510	305	17
45	590	335	14
Q195	315	195	22
Q215	335	215	22
Q235	375	235	20
Q295	430	295	22
Q345	510	345	21
Q390	530	390	18

Shape of ends:

Both ends of the pipe should be cut to a complete end surface perpendicular to the axis and burs shall be removed from the ends.

Delivery condition:

Cold Drawn, heat treatment is also acceptable.

Production Picture:

Product Tags:


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Categories	Seamless Steel Tube
Brand Name:	Torich
Model Number:	GB/T 3094 Seamless or Welded Octangon Steel Pipe
Place of Origin:	China
Certification:	ISO 9001:2008 , BV , ABS , CCS , DNV , GL ,PED
MOQ:	5 Ton
Price:	negotiable
Supply Ability:	60000 Ton/Year
Packaging Details:	Packing in wooden, hexagonal box or other seaworthy ways
Steel Grade:	10#/ 20#/ 35#/ 45#/ Q195/ Q215/ Q235/ Q295/ Q345/ Q390
Standard:	GB/T 3094
Application:	For structural parts, tool and machinery parts
Production method:	Cold drawn
Delivery condition:	Cold Drawn or Heat Treatment
Steel type:	seamless or welded
Delivery Time:	30 days
Payment Terms:	T/T L/C D/P D/A WesternUnion MoneyGram Others