DIN 1629 GRADE ST52-0 COLD DRAWN NON-ALLOY SEAMLESS STEEL TUBES
OVERVIEW
Carbon steel seamless steel pipe is kind of long steel. Steel pipe
has hollow section, which is widely used as pipeline for conveying
fluids, such as oil, natural gas, gas, water and some solid
materials. Compared with solid steel such as round steel, steel
pipe is lighter in weight under the same bending and torsional
strength. It is an economic section steel. It is widely used in
manufacturing structural and mechanical parts, such as oil drill
pipe, automobile transmission shaft, bicycle frame and steel
scaffolding used in construction.
DIN 1629 Seamless Steel pipe Of Non Alloys Steels are made of unalloyed steels, it’s main grades are St 37.0, St44.0,
St52.0, Din 1629 seamless steel pipes application fields are:
chemical plant, vessels, pipework construction and for common
mechanical engineering purposes. Normally DIN 1629 standard are
manufactured with no limiting working pressure values. Working
temperature is limited below 300℃.
If you are interested in our products, please contact us now for
more detailed information. We assure best in class products with
excellent services to our customers.
APPLICATIONS
This standard specifies the Seamless Circular Tubes of Non Alloys
Steels that are used in construction of chemical plant, pressure
vessels, pipe system and general mechanical and engineering
purposes.
STANDARD SPECIFICATIONS
| Process | Seamless Pipes |
| Shape | Round |
| Size Technique | Cold Drawn |
| Size Range | 6-426mm OD |
| Thickness | 1-40mm WT |
| Pipe End | Plain / Beveled / Vanished / Plastic Caps |
| Coating | Black / Galvanised / 3LPE / Turned / Peeled / Grinded / Polished /
Anti – Corrosion Oil |
| Length | 15 Mtr max Cut to Length available |
| Heat Treatment | Spheroidizing / Full Annealing / Process Annealing / Isothermal
Annealing / Normalizing / Quenching / Martempering (Marquenching) /
Quench And Tempering / Austempering |
| Application | Oil & Gas / Hydro Carbon Process / Automotive / Boiler, Heat
Exchanger / Plumbing, HVAC & Firefighting / Structural / General
Engineering / Railways / Sewage & Waterwell |
| Quality Inspection | Third Party inspection is acceptable (SGS, BV etc.) |
TOLERANCE FOR SEAMLESS TUBING
| I.D tolerance (mm) | O.D tolerance (mm) | Straightness (mm) |
| H9-H12 | -/+0.5% | 0.20-0.80 |
Relevant Standard & Grades Equivalency
-DIN1629 Seamless Circular Tubes of Non-alloy Steels with Special
Quality Requirements
-ASTM A519 Seamless Carbon and Alloy Steel Mechanical Tubing
-EN 10297-1 Seamless Circular Steel Tubes for Mechanical and
General Engineering Purpose
-JIS G3444 Carbon Steel Tubes for General Structural Purposes
-JIS G3445 Carbon Steel Tubes for Machine Structural Purposes
| DIN | EN | ASTM |
| DIN 1629 Grade St 52-0 | EN 10216.3 Grade P355N | ASTM SA 381 Grade Y52 |
Chemical Requirements, Composition, %
| Standard | Grade | C | Mn | P | S | Si |
| DIN 1629 | ST52-0 | 0.22 max | 1.60 max | 0.035 max | 0.035 max | 0.55 max |
Mechanical properties
| Standard | Steel Grade | Yield strength MPa (>=) | Tensile strength MPa (>=) | Elongation % (>=) | Reduction of area % (>=) |
| DIN 1629 | ST52 | 355 | 500-650 | 21 | 19 |
PROCESSING
Our Services
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
Package
In standard export packing and seaworthy material with hexagon shape bundle, covered with tarpaulin, in containers or in bulk, or
upon request
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!
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.
