SHANGHAI UNITE STEEL
One-stop Brand Service Provider For Globle Machinery And Petrochemical Enterprise And Special Steel Distributor.
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DIN 2391 Precision Tube Seamless Cold Drawn Steel Tube for Mechnical Purpose ST52/S355JR
Cold drawn seamless has closer dimensional tolerances, better surface finish and higher mechanical properties than corresponding grades of hot finished seamless.
Application
Structure pipe; High and low pressure boiler tube; Liquid delivery; Seamless steel pipe for petroleum cracking ,Oil pipe,Gas pipe.
Delivery Condition: BKS, NBK, BK and BKW
| Chisese | American | German | |
| Material & Standard Description | 10# | ASTM A53-A | St37 DIN1626 |
| ASTM A106-A | St37-2 DIN17175 | ||
| ASTM A179-C | St35.8 DIN17175 | ||
| ASTM A192 | St35.8 DIN17175 | ||
| 20# | ASTM A53-B | St42-2 DIN1626 | |
| ASTM A106-B | St45-8 DIN17175 | ||
| ASTM A178-C | St45-4 DIN1629 | ||
| 45# | ASTM A1045 | CK45 | |
| 16Mn | ASTM A210-C | St52 DIN1629 | |
| 37Mn5 | J55 | ||
| 27SiMn | |||
| CrMo | ASTM 4135,4150 | CrMo4 DIN17212 | |
| 40Cr | ASTM 5140 | 41C |
| Norminal Diameter | Outside Diameter | SCH40(6m) | SCH80(6m) | SCH160(6m) | |||
| Wall | Weight | Wall | Weight | Wall | Weight | ||
| (mm) | (mm) | (kg/pc) | (mm) | (kg/pc) | (mm) | (kg/pc) | |
| 1/4” | 13.7 | 2.24 | 3.79 | 3.02 | 4.8 | ||
| 3/8” | 17.1 | 2.31 | 5.04 | 3.2 | 6.6 | ||
| 1/2” | 21.3 | 2.77 | 7.62 | 3.73 | 9.72 | 4.78 | 11.7 |
| 3/4” | 26.7 | 2.87 | 10.14 | 3.91 | 13.2 | 5.56 | 17.4 |
| 1” | 33.4 | 3.38 | 15 | 4.55 | 19.44 | 6.35 | 25.44 |
| 1-1/4” | 42.2 | 3.56 | 20.34 | 4.85 | 26.82 | 6.35 | 33.66 |
| 1-1/2” | 48.3 | 3.68 | 24.3 | 5.08 | 32.46 | 7.14 | 43.5 |
| 2” | 60.3 | 3.91 | 32.64 | 5.54 | 44.88 | 8.74 | 66.66 |
| 2-1/2” | 73 | 5.16 | 51.78 | 7.01 | 68.46 | 9.53 | 89.52 |
| 3” | 88.9 | 5.49 | 67.74 | 7.62 | 91.62 | 11.13 | 128.1 |
| 3-1/2” | 101.6 | 5.74 | 81.42 | 8.08 | 111.78 | ||
| 4” | 114.3 | 6.02 | 96.42 | 8.56 | 133.92 | 13.49 | 201.24 |
| 5” | 141.3 | 6.55 | 130.62 | 9.53 | 185.82 | 15.88 | 294.66 |
| 6” | 168.3 | 7.11 | 169.56 | 10.97 | 255.36 | 18.26 | 405.36 |
| 8” | 219.1 | 8.18 | 255.3 | 12.7 | 387.84 | 23.01 | 667.62 |
| 10” | 273 | 9.27 | 361.86 | 15.09 | 576.06 | 28.58 | 1033.98 |
| 12” | 323.8 | 10.31 | 478.38 | 17.48 | 792.48 | 33.32 | 1432.56 |
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 |
| Grade | C | Si | Mn | P | S |
| S355JR | 0.22max | 0.55max | 1.60max | 0.025max | 0.025max |
Our Services
Third Party inspection acceptable. such as SGS, BV etc.
Supplying financial support with usance L/C 180 days after B/L date.
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
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!
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.