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ST52 / S355JR Rolled Steel Tube , Automobile High Precision Cold Rolled Pipe

China SHANGHAI UNITE STEEL certification
China SHANGHAI UNITE STEEL certification
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ST52 / S355JR Rolled Steel Tube , Automobile High Precision Cold Rolled Pipe

ST52 / S355JR Rolled Steel Tube , Automobile High Precision Cold Rolled Pipe
ST52 / S355JR Rolled Steel Tube , Automobile High Precision Cold Rolled Pipe ST52 / S355JR Rolled Steel Tube , Automobile High Precision Cold Rolled Pipe ST52 / S355JR Rolled Steel Tube , Automobile High Precision Cold Rolled Pipe ST52 / S355JR Rolled Steel Tube , Automobile High Precision Cold Rolled Pipe

Large Image :  ST52 / S355JR Rolled Steel Tube , Automobile High Precision Cold Rolled Pipe

Product Details:
Place of Origin: China
Certification: ISO 9001
Model Number: OD: 10-150mm; WT: 2-25mm
Payment & Shipping Terms:
Minimum Order Quantity: MOQ: 2-3 ton
Price: USD 700- 2000/ton
Packaging Details: Plastic plugs in both ends, Hexagonal bundles of max 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips.
Delivery Time: Within 15-35 days
Supply Ability: 3000 ton/month
Detailed Product Description
Usage: Automobile Production Technique: Hot Rolled/cold Rolled
Quality Standard: DIN 2391, EN10305 Surface: Black, Bright, Smooth
Delivery Condition: BKS, NBK,BK ,BKW, GBK(+A), NBK(+N), BK(+C) Product Name: Alloy Steel Tube ST52/S355JR
High Light:

Cold Rolled Tubing

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Rolled Steel Pipe

ST52/S355JR high precision cold rolled steel tube for automobile, OD: 10-150mm; WT: 2-25mm

 

Overview

 

Cold drawn seamless has closer dimensional tolerances, better surface finish and higher mechanical properties than corresponding grades of hot finished seamless.

 

Application

 

High Precision Cold Rolled Seamless Steel Tube is used in automotive industry, and in the occasion where the high accuracy, brightness, cleanness of the tube are required.

 

Quality Standards

 

DIN 2391 Seamless Precison Steel Tubes

BS6323 Specification for Seamless and Welded Steel Tubes for Automobile, Mechanical and General Engineering Purposes

ASTM A519 Standard Specification for Seamless Carbon and Alloy Steel Mechanical Tubing

 

Steel Grades

 

DIN Standard: St35, St52
BS Standard: CFS 4, CFS 5, CFS 10
ASTM Standard: 1020, 1045, 4130

 

Size Range

 

Outer Diameter: 10-150 mm

Wall Thickness: 2-25 mm

Length Random Length, Fixed Length, etc.

 

Dimension Tolerance

 

I.D tolerance (mm) O.D tolerance (mm) I.D Roughness (µm) Straightness (mm/meter)
H7-H9 -/+0.5% 0.10-0.80 0.2-0.80

 

Chemical Composition(%)

 

Grade C Si Mn P S Cr Mo
ST35 0.17 max 0.35 max 0.40 max 0.025 max 0.025 max / /
ST42 0.21 max 0.35 max 0.40 max 0.025 max 0.025 max / /
ST52 (DIN1.0580) 0.22 max 0.55 max 1.60 max 0.025 max 0.025 max / /

 

Delivery Conditions

 

+C (BK) Hard. No final treatment after final cold rolling.
+LC (BKW) Soft. Final heat treatment is followed by a suitable drawing pass (limited reduction of area).
+SR (BKS) Stress Relieved. After final cold rolling, the tubes are stress relieved in a controlled atmosphere.
+A (GBK) Annealed. After final cold rolling, the tubes are annealed in a controlled atmosphere.
+N (NBK) Normalized. After final cold rolling, the tubes are normalized in a controlled atmosphere.

 

Mechanical Properties( T=20°C if not differently stated )

 

Grades Delivery Conditions Tensile Strength Rm (Mpa) Yield Strength R2 (Mpa) Elongation in the longitudinal direction Al (%)
St 52 +C (BK) 640 min / 4 min
St 52 +LC (BKW) 580 min / 7 min
St 52 +SR (BKS) 580 min 420 min 10 min
St 52 +A (GBK) 490 min / 22 min
St 52 +N (NBK) 490-630 355 min 22 min

 

Our Services

 

Third Party inspection acceptable. such as SGS, BV etc.

Supplying financial support with usance L/C 180 days after B/L date.

 

ST52 / S355JR Rolled Steel Tube , Automobile High Precision Cold Rolled Pipe 0

 

What we can offer?

 

-We offer a wide range of steel products in a wide variety of dimensions and executions, according to the common international specifications or customize.

-Machining and heat treatment are available.

-Also, we advise you in choosing the right materials.

 

 

Quality Assurance

 

Below inspection will be done in the production.
(1) ray detection---RT;
(2) ultrasonic testing---UT;
(3) Magnetic Particle Testing-MT;
(4) penetration testing-PT;
(5) eddy current flaw detection-ET

 

ST52 / S355JR Rolled Steel Tube , Automobile High Precision Cold Rolled Pipe 1

 

Package

 

In standard export packing and seaworthy material with hexagon shape bundle, covered with tarpaulin, in containers or in bulk, or upon request

ST52 / S355JR Rolled Steel Tube , Automobile High Precision Cold Rolled Pipe 2

 

Payment & Delivery

 

1. Both T/T and L/C will be acceptable

2. Trade Terms: FOB, CIF, CFR

3. The delivery will be in 10-15 days if have stock; For customized items, the delivery will be negotiated by both parties

4. Shipping by sea freight from Shanghai Port (PRC) for Bulk orders, by airfreight or express for samples

 

Company Information

 

Shanghai Unite Steel Trading Co., Ltd

We are committed to integrate engineering steel resources in china and serve the global engineering steel market. Our company has more than 15 years of experience in steel researching, production, managing and sales. And our team mostly are based on and worked in national famous steel enterprise.

In the aspect of resources and information, we have established cooperative and stronger relationship with nearly hundred enterprises, either state-owned or private owned in china.

What’s more, we have built long, deep and close business relationship with dozens of steel company, Sharing and holding equities with several steel enterprises. Because of the close cooperation with steel companies and our pioneering spirit, which can ensure us stay at the top competition, and ensure our customers get what they really want!

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FAQ

 

Q: Are you a manufacturer or merely a trader?
A: We are group of companies and owned manufacturer bases and trading company. We specialized in special steel which include alloy structural steel and carbon steel and stainless steel, etc. All material are with high quality and competitive price. 
 
Q: How do you guarantee the quality of your product?
A: Firstly, we can provide the certificates from the third party, such as TUV, CE, if you need. Secondly, we have a complete set of inspection system and every process is checked by QC. Quality is the lifeline of enterprise survival.
 
Q: Delivery time?
A: We have ready stock for most of material grades in our warehouse. If the material doesn't have stock, the delivery lead time is about 5-30 days after receiving your prepayment or firm order.
 
Q: What is the payment term?
A: T/T or L/C.
 
Q: Can we visit your company and factory?
A: Yes, warmly welcome! We can book the hotel for you before you come to China and arrange our driver to our airport to pick you up when you come. 

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Contact Details
SHANGHAI UNITE STEEL

Contact Person: Eric

Tel: 13661534998

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