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ST52 BK Cold Rolled Precision Steel Tube

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Address: No.101 Shijing East Road, Tudian Town, Tongxiang, China

Contact name:Denny

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ST52 BK Cold Rolled Precision Steel Tube

Country/Region	china
Categories	Metal Casting Machinery

Product Details

Product Name: Small Diameter Seamless Cold Rolled Precision Steel Tube ST52 BK Cold Finished

Material: ST35, ST45, ST52
Size Range: OD: 6-88mm, WT: 1-15mm, Length: 5.8m/6m, maximal 11.8m
Delivery Condition: BK, BKW, BKS, GBK, NBK
Application: For high precision purpose, auto industry, like manipulator, Shock Absorber, Transmission Shaft, Steering Gear, Car Frame, etc.

Cold Rolled on the seamless steel tubes, to reach high accuracy on the OD and WT tolerance

Deliver condition:

1). BK Cold finished (hard)
2). BKW Cold finished (soft)

3). BKS Cold finished and stress relieved

4). GBK Annealed
5). NBK Normalized

Quality Control:
1. Incoming Raw Material Inspection
2. Raw Material Segregation to avoid steel grade mix-up
3. Heating and Hammering End for Cold Drawing
4. Cold Rolling, On line inspection
5. Heat Treatment:BKS, GBK, NBK
6. Straightening/Cutting to specified length/Finished Measuring Inspection
7. Quality Testing in own lab with Tensile Strength, Yield Strength, Elongation, Hardness, Straightness, etc.
8. Packing and Stocking.

100% Eddy Current Testing.
100% Size Tolerance Checking.
100% Tube surface checking to avoid surface defects.

Product Name	DIN2391 St52 BK Seamless Cold Rolled Steel Tube
Material	ST35, St45, ST52
Delivery Condition	BK, BKW, BKS, GBK, NBK
Standard	DIN2391
Size Range	OD: 6-88mm, WT: 1-15mm
Application	High precision purpose, auto parts, oil cylinder, etc
Round Billet	Bao Steel, Xingcheng Steel, Huai Steel, Zhongtian Steel
Keyword	DIN2391 Steel Tube
Certificate	TS16949, ISO 9001
HS code	7304319000
Delivery Time	45 days
Packing	Bundles or Wooden Boxes

Steel Grade		Chemical Composition
Symbol	Material Number	C Max.	Si Max.	Mn	P Max.	S Max.
ST35	1.0308	0.17	0.35	≥0.40	0.025	0.025
ST45	1.0408	0.21	0.35	≥0.40	0.025	0.025
ST52	1.0580	0.22	0.55	≤1.60	0.025	0.025

Steel Grade		BK		BKW		BKS
Name	No.	Rm Mpa	A %	Rm Mpa	A %	Rm Mpa	ReH Mpa	A %
ST35	1.0308	480	6	420	10	420	315	14
ST45	1.0408	580	5	520	8	520	375	12
ST52	1.0580	640	4	580	7	580	450	10

Steel Grade		GBK		NBK
Name	No.	Rm Mpa	A %	Rm Mpa	ReH Mpa	A %
ST35	1.0308	315	25	340--470	235	25
ST45	1.0408	390	21	440--570	255	21
ST52	1.0580	450	22	490--630	355	22

FAQ:

1. Can you provide a sample to check the quality?
We can provide free sample with same or similar sizes for you to check tube quality.

You need to in charge of Express costs.

2. How about your production capacity?
3000 tons/Month.

3. What are your terms of payment?
30%TT in advance, Balance to be paid before shipment.

4. Where is your factory?
Jiaxing city, 2 hours away from Shanghai.

5. How can I get the quotation A.S.A.P?
Please send us an inquiry with full details as following,quotation will sent to you A.S.A.P:
1). Tube Standard
2). Steel Grade

3). Tube Size and Size Tolerance
4). Tube length

5). Quantity

6). If any special requirements

6. How about the minimum order quantity?
Normally for one size above 1 ton.

Welcome to contact us! Thanks.