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| Selling Units: | Ton |
|---|---|
| Package Type: | According to customer requirements |
| Picture Example: |
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Packaging: According to customer requirements
Productivity: 1000 tons per month
Transportation: Ocean,Land,Air,Express,Others
Place of Origin: CHINA
Supply Ability: 1000 tons per month
Certificate: ISO
HS Code: 73089000.00
Payment Type: L/C,T/T,D/P,D/A
Incoterm: FOB,EXW,CIF,CFR,FAS,FCA
Product Description
The raw material of carbon steel tube is round tube billet, round tube embryo to be cut by cutting machine processing billet with growth of about 1 meter, and sent to the furnace by conveyor belt heating. The billet is fed into a furnace and heated to about 1200 degrees Celsius. The fuel is hydrogen or acetylene. The temperature control in the furnace is the key problem. After the round tube billet comes out, it is perforated by the pressure punch. Generally, the most common perforator is the conical roll perforator. This kind of perforator has high production efficiency, good product quality, large perforating diameter and can wear a variety of steel. After perforation, the round tube billet is successively rolled by three high diagonal, continuous rolling or extrusion. After extrusion, the pipe should be removed for sizing. The caliper rotates into the steel embryo through a conical drill at high speed to punch holes and form steel pipes. The inner diameter of the Steel Pipe is determined by the outer diameter length of the caliper drill bit. After sizing the steel pipe, it enters the cooling tower and is cooled by spraying water. After cooling the steel pipe, it will be straightened. After straightening, the steel pipe is sent by conveyor belt to the metal inspection machine (or hydraulic test) for internal inspection. If there are cracks, bubbles and other problems inside the steel pipe, it will be detected. Steel pipe quality inspection after the strict hand selection. After the steel pipe is inspected, the number, specification and production lot number are sprayed with paint. And by the crane into the warehouse.
Carbon steel tube is made of steel ingot or solid tube blank perforated into wool tube, and then hot rolled, cold rolled or cold drawn. Carbon steel pipe plays an important role in our steel pipe industry. According to incomplete statistics, existing carbon steel tube manufacturers in our country about more than 240 enterprises, carbon steel tube units about more than 250 sets, annual capacity about more than 4.5 million tons.
Product Specification
| Product | SEAMLESS / ERW / SAW ALLOY STEEL PIPE |
| Dimension | 6 mm - 1080 mm |
| Thickness | 1mm - 135 mm |
| Length | 3 m - 12 m or according to the requirements of clients |
| Standard | ASTM GB DIN |
| Steel grade | A106/53/179/214/192/210 A/B/C ST37.2/35.4/35.8/52/52.3/52.4/42/45 10# 20# 45# P2, P12, P11, P22, P5, P9, P91 T2, T11,T5,T9,T22, 4140, 12CrMo, 15CrMo, 12Cr2Mo, 1Cr5Mo, 2CrMo4, 1Cr9Mo, 10CrMo910, etc. |
| Trade terms | FOB/CIF/CFR |
| Payment terms | T/T, L/C |
| Delivery port | Tianjin, China |
| Delivery time | 10 or according to the real quantity of the tubes |
| Surface treatment | Black painting Varnish painting 3PE Hot galvanized or other coating according to your requirements Bare tube |
| End of tubes | Beveled, plain, thread, plastic caps |
| Inspection | Ultrasonic examination, eddy inspection, hydrosttic testing etc. |
| Package | Bundles, lossen or according to your requirements |
| Certificate | API 5L/5CT, ISO, PED etc. |
Technical data
Chemical Composition
| C, % | Mn, % | P, % | S, % | Si, % | Cr, % | Mo, % |
| 0.05-0.15 | 0.30-0.60 | 0.025 max | 0.025 max | 0.50-1.00 | 1.00-1.50 | 0.44-0.65 |
Mechanical Properties
| Tensile Strength, MPa | Yield Strength, MPa | Elongation, % |
| 415 min | 205 min | 30 min |
Outside Diameter & Tolerance
| ASTM A450 | Hot rolled | Outside Diameter, mm | Tolerance, mm |
| OD≤101.6 | +0.4/-0.8 | ||
| 101.6＜OD≤190.5 | +0.4/-1.2 | ||
| 190.5＜OD≤228.6 | +0.4/-1.6 | ||
| Cold Drawn | Outside Diameter, mm | Tolerance, mm | |
| OD＜25.4 | ±0.10 | ||
| 25.4≤OD≤38.1 | ±0.15 | ||
| 38.1＜OD＜50.8 | ±0.20 | ||
| 50.8≤OD＜63.5 | ±0.25 | ||
| 63.5≤OD＜76.2 | ±0.30 | ||
| 76.2≤OD≤101.6 | ±0.38 | ||
| 101.6＜OD≤190.5 | +0.38/-0.64 | ||
| 190.5＜OD≤228.6 | +0.38/-1.14 | ||
| ASTM A530 & ASTM A335 | NPS | Outside Diameter, inch | Tolerance, mm |
| 1/8≤OD≤1-1/2 | ±0.40 | ||
| 1-1/2＜OD≤4 | ±0.79 | ||
| 4＜OD≤8 | +1.59/-0.79 | ||
| 8＜OD≤12 | +2.38/-0.79 | ||
| OD>12 | ±1% |
Wall thickness & Tolerance
| ASTM A450 | Hot rolled | Outside Diameter, mm | Tolerance, % |
| OD≤101.6, WT≤2.4 | +40/-0 | ||
| OD≤101.6, 2.4＜WT≤3.8 | +35/-0 | ||
| OD≤101.6, 3.8＜WT≤4.6 | +33/-0 | ||
| OD≤101.6, WT>4.6 | +28/-0 | ||
| OD>101.6, 2.4＜WT≤3.8 | +35/-0 | ||
| OD>101.6, 3.8＜WT≤4.6 | +33/-0 | ||
| OD>101.6, WT>4.6 | +28/-0 | ||
| Cold Drawn | Outside Diameter, mm | Tolerance, % | |
| OD≤38.1 | +20/-0 | ||
| OD>38.1 | +22/-0 | ||
| ASTM A530 | NPS | Outside Diameter, inch | Tolerance, % |
| 1/8≤OD≤2-1/2 | +20.0/-12.5 | ||
| 3≤OD≤18, WT/OD≤5% | +22.5/-12.5 | ||
| 3≤OD≤18, WT/OD>5% | +15.0/-12.5 | ||
| OD≥20, WT/OD≤5% | +22.5/-12.5 | ||
| OD≥20, WT/OD>5% | +15.0/-12.5 |
Product Display
Packaging And Transportation
FAQ
1.Why you choose us?
Our company has been 12 years. We control the quality of the products very strictly, there are special people for the quality.
If you got lower price from other supplier, we will pay back twice to customers about the higher price.
2.How long is your delivery time?
According to the quantity. Generally within 2-7 days if in stock. And 15-20 days if not in stock.
3.What is your payment terms?
A: By T/T 30% in advance, and 70% before delivery.
B:100% L/C at sight.
C:By T/T 30% in advance, and 70% L/C at sight.
4.Do you provide samples? Is it free?
Yes, we offer the sample for free but do not pay for the cost of freight.
5.What if the customer is not satisfied?
If there is a problem with the product, we take full responsibility.
If there is a problem in the transportation process, we will help you to solve it.
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