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EN10305 E235 Precision Steel Tube Cold Drawn Seamless Tube with 6-120mm OD for

China EN10305 E235 Precision Steel Tube Cold Drawn Seamless Tube with 6-120mm OD for

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EN10305 E235 Precision Steel Tube Cold Drawn Seamless Tube with 6-120mm OD for

MOQ： 1 ton
Price： Negotiable
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Supply Ability	30000MT per year
Delivery Time	Within 50 days if production
Packaging Details	Seaworthy plywooden case
Payment Terms	L/C,T/T
Material	ST37.4, ST52.4, E235, E355, 26MnB5, 34MnB5
Brand	Hongbao
Origin	Jiangsu, China
OD	6-120mm
Thickness	0.5-15mm
Processing	Cold Drawn, Cold Rolled
Brand Name	Hongbao
Model Number	HBPST-1
Certification	TS16949, DNV, PED, ISO, TUV, LR
Place of Origin	Jiangsu, China

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Product Details
Company Details

Product Specification


Supply Ability	30000MT per year	Delivery Time	Within 50 days if production
Packaging Details	Seaworthy plywooden case	Payment Terms	L/C,T/T
Material	ST37.4, ST52.4, E235, E355, 26MnB5, 34MnB5	Brand	Hongbao
Origin	Jiangsu, China	OD	6-120mm
Thickness	0.5-15mm	Processing	Cold Drawn, Cold Rolled
Brand Name	Hongbao	Model Number	HBPST-1
Certification	TS16949, DNV, PED, ISO, TUV, LR	Place of Origin	Jiangsu, China
High Light	EN10305 Round Precision Steel Tube ，Hollow Seamless Precision Steel Tube ，6mm Precision Steel Tube

EN10305 WT12 E235 Round Precision Steel Tube

Cold Drawn Hollow Seamless Tube For Mechanical Applications

Round precision steel tubes and cold drawn hollow seamless tubes are crucial for mechanical applications, offering high strength and durability. These tubes are manufactured through cold drawing, enhancing their dimensional accuracy and surface finish. Their seamless construction eliminates weak points, making them ideal for high-pressure environments. Commonly used in automotive, aerospace, and machinery sectors, these tubes ensure reliable performance and longevity.

Product Specifications

Product Name	EN10305 round hollow seamless mechanical cold drawn steel tube
Steel Grade	45#, 20#, 16Mn, 27SiMn, ST-52, non-alloy steel
Specifications	O.D.: 40-325mm (H7-H9), W.T.: 3-30mm, L: fixed or random (1-10m)
Straightness	0.5 /1000
Roughness (Ra)	0.2 to 0.4 micron
Processing Type	cold drawn, honed
Marking	JW, ID, OD
Package	banding with steel strips, braiding parcel at outside
Conservation	Anti-rust oiled coating on inside and outside surfaces, plastic caps at both ends
Impact Test	(-20°C, 27 J, only for special requirement)
Length	Max 6M
Surface Treatment	Bared, Oiled, polished as clients require

Mechanical Properties at Room Temperature

Delivery Condition	BK	BKW	GBK	NBK (N)
Steel Grade	Rm Mpa (Min) \| A % (Min)	Rm Mpa (Min) \| A % (Min)	Rm Mpa (Min) \| A % (Min)	Rm Mpa (Min) \| ReH Mpa (Min) \| A % (Min)
E255	580 \| 5	520 \| 8	390 \| 21	440~570 \| 255 \| 21
E355	640 \| 4	580 \| 7	450 \| 22	490~630 \| 355 \| 22
E235	480 \| 6	420 \| 10	315 \| 25	340~480 \| 235 \| 25
E215	430 \| 8	380 \| 12	280 \| 30	290~430 \| 215 \| 30

Delivery Conditions

NBK(+N): After cold forming, eventually above phase transition point, in a protective atmosphere of annealing oxidation medium
GBK(+A): After cold forming, annealing in non-oxidizing medium protective gas
BK(+C): The final heat treatment after cold forming, therefore small steel pipe plastically, the plastic degree does not guarantee

Applications

Fuel injection lines/nozzles for diesel or gasoline engine
Compressed natural gas (CNG) tube
Drive transmission: steering column elements
Gear shafts, hand brake, front axles, airbag inflators, stabilizers, seat fasteners, front-wheel drive shafts
Mechanical structure pipe parts in automobile, motorcycles and vehicle
Hydraulic circuits, pneumatic lines and hydraulic suspension
Hydraulic cylinders

Company Details

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Business Type:

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Year Established:

1958 
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Total Annual:

>76000000
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Employee Number:

700~1000 
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Jiangsu Hongbao Group (Pipe) Co., Ltd. (Zhangjiagang Hongda Pipe Co., Ltd.) is a high-tech company in Jiangsu province. The company has a registered capital of RMB 89 million, covers an area of 130,000 square meters, employs 600 staff, and has annual sales of RMB 400 million. The company is speciali... Jiangsu Hongbao Group (Pipe) Co., Ltd. (Zhangjiagang Hongda Pipe Co., Ltd.) is a high-tech company in Jiangsu province. The company has a registered capital of RMB 89 million, covers an area of 130,000 square meters, employs 600 staff, and has annual sales of RMB 400 million. The company is speciali...

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Delivery Condition	BK	BKW	GBK	NBK (N)
Steel Grade	Rm Mpa (Min) \| A % (Min)	Rm Mpa (Min) \| A % (Min)	Rm Mpa (Min) \| A % (Min)	Rm Mpa (Min) \| ReH Mpa (Min) \| A % (Min)
E255	580 \| 5	520 \| 8	390 \| 21	440~570 \| 255 \| 21
E355	640 \| 4	580 \| 7	450 \| 22	490~630 \| 355 \| 22
E235	480 \| 6	420 \| 10	315 \| 25	340~480 \| 235 \| 25
E215	430 \| 8	380 \| 12	280 \| 30	290~430 \| 215 \| 30