SHANGHAI UNITE STEEL
| Payment Terms | L/C, T/T, D/A, D/P |
| Supply Ability | 3000 ton/month |
| Delivery Time | Within 15-35 days |
| 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. |
| Usage | Hydraulic Cylinder |
| Production Technique | Honing/Skiving Tube |
| Quality Standard | DIN 2391, EN10305 |
| Surface | Black, Bright, Smooth |
| Delivery Condition | BKS, NBK,BK ,BKW, GBK(+A), NBK(+N), BK(+C) |
| Product name | Carbon steel tube 1020/S20C |
| Inspection | The third party inspection is acceptable |
| End protector: | Plastic caps |
| Marking | As request |
| Technique | Cold Drawn |
| Brand Name | UST |
| Model Number | OD: 6-426mm; WT: 1-40mm |
| Certification | ISO 9001 |
| Place of Origin | China |
View Detail Information
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Product Specification
| Payment Terms | L/C, T/T, D/A, D/P | Supply Ability | 3000 ton/month |
| Delivery Time | Within 15-35 days | 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. |
| Usage | Hydraulic Cylinder | Production Technique | Honing/Skiving Tube |
| Quality Standard | DIN 2391, EN10305 | Surface | Black, Bright, Smooth |
| Delivery Condition | BKS, NBK,BK ,BKW, GBK(+A), NBK(+N), BK(+C) | Product name | Carbon steel tube 1020/S20C |
| Inspection | The third party inspection is acceptable | End protector: | Plastic caps |
| Marking | As request | Technique | Cold Drawn |
| Brand Name | UST | Model Number | OD: 6-426mm; WT: 1-40mm |
| Certification | ISO 9001 | Place of Origin | China |
| High Light | S20C Hydraulic Cylinder Steel Tube ，DIN 2391 Hydraulic Cylinder Steel Tube ，Honing Cylinder hollow tubing | ||
1020/S20C Hydraulic Cylinder Steel Tube High Precision Cold Drawn Seamless tube
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.
Honing/Skiving tube has closer dimensional tolerances, better surface finish and higher mechanical properties than corresponding grades of hot finished seamless.
APPLICATIONS
High Precision Cold Drawned Seamless Steel Tube is used in automotive industry, and in the occasion where the high accuracy, brightness, cleanness of the tube are required.
STANDARD SPECIFICATIONS
| Process | Cold Drawn Seamless Pipes |
| Shape | Round |
| 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 |
Relavent Standard & Grades Equivalency
-ASTM A519 Seamless Carbon and Alloy Steel Mechanical Tubing
-EN 10297-1 Seamless Circular Steel Tubes for Mechanical and General Engineering Purpose
-DIN1629 Seamless Circular Tubes of Non-alloy Steels with Special Quality Requirements
-JIS G3444 Carbon Steel Tubes for General Structural Purposes
-JIS G3445 Carbon Steel Tubes for Machine Structural Purposes
Chemical Requirements, Composition, %
| Standard | Grade | C | Mn | P | S | Si | Cr |
| ASTM A519 | 1020 | 0.17-0.24 | 0.35-0.65 | 0.035 | 0.040 | 0.17-0.37 | 0.25 |
Mechanical properties
| Standard | Steel Grade | Yield strength MPa (>=) | Tensile strength MPa (>=) | Elongation % (>=) | Reduction of area % (>=) | Hardness Brinell |
| ASTM A519 | 1020 | 350 | 420 | 15 | 50 | 121 |
Heat Treatment
Annealing
AISI 1020 steel is heated at 870°C - 910°C followed by holding for certain time until the temperature remains constant all over the section. It is then cooled in a furnace.
Carburizing
AISI 1020 is heated to between 880°C - 920°C in a suitable carburizing atmosphere followed by holding for sufficient amount of time to produce the needed carbon content and case depth. After this, refining/hardening and tempering processes are carried out to optimize the core and case properties.
Core Refining
AISI 1020 steel is slowly cooled and re-heated at 870°C - 900°C followed by holding until the temperature remains constant all over the section and quenching in water, oil or brine.
Case Hardening
After performing the core refining process, it is re-heated to 760°C - 780°C followed by holding until the temperature is consistent all over the section. It is then quenched in water.
Tempering
AISI 1020 steel is re-heated at 150°C - 200°C followed by holding for certain time until the temperature remains constant throughout the section. It is soaked for 1 hour per 25 mm of section and then cooled under normal atmosphere. By performing the tempering process, the toughness of the case will be improved and grinding cracks will be reduced.
Normalizing
AISI 1020 steel is heated at 890°C - 940°C followed by holding until the temperature remains constant throughout the section. It is soaked for 10 - 15 minutes and then cooled in still air.
Stress Relieving
AISI 1020 steel is heated to 650°C - 700°C followed by holding until the temperature remains constant all over the section and soaking for 1 hour per 25 mm of section. It is then cooled in still air.
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
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.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Agent,Exporter,Trading Company,Seller
Year Established:
2010
Total Annual:
10000000-25000000
Employee Number:
50~110
Ecer Certification：
Active Member
We, Shanghai Unite Steel 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... We, Shanghai Unite Steel 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...
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