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Product Description
Galvanized pipe, or Galvanized steel pipe is divided into hot-dip galvanizing and electro-galvanizing. The hot-dip galvanizing layer is thick, with uniform plating, strong adhesion and long service life. The cost of electroplating is low, the surface is not very smooth, and its corrosion resistance is much worse than that of hot-dip galvanized pipes.
The seamless steel pipe is made of a whole piece of metal and has no seam on the surface.According to the production method,seamless pipes are divided into hot tube, cold-rolled pipe, cold-drawn pipe, extruded pipe, pipe jacking, etc. According to the cross-sectional shape, seamless steel pipes are divided into circular and special-shaped pipes. Special-shaped pipes have many complex shapes, such as square, oval, triangle, hexagon, melon seeds, star and finned pipes.Seamless steel pipes are mainly used as drilling pipes for petroleum geology, cracking pipes for petrochemical industry, boiler tubes, bearing pipes and high-precision structural steel pipes for automobiles, tractors and aviation.
Usually made of high-quality carbon steel, such as 10, 20, 30, 35, 45, etc., such as low-alloy steel, such as 16Mn, 5MnV, etc., etc., made of hot-rolled or cold-rolled steel, such as 40Cr, 30CrMnSi, 45Mn2 , MOMnB, etc. Mainly made of low carbon steel, Buch as0 and 20 seamless pipes. The seamless machining of medium carbon steels such as 45cr and 40Cr is used to make mechanical parts such as car and tractor parts. Seamless steel pipes are generally used to ensure strength and flattening tests. Hot-rolled steel pipes are in a hot-rolled state or a heat-treated state. A combination of cold and heat for heat treatment. Low and medium pressure boiler seamless steel pipe: used to manufacture various low and medium pressure boiler booster steam pipes, water supply pipes, water wall pipes and other locomotive boiler superheated steam pipes, arch brick pipes, small pipes, etc.
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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Main Product:
Seamless Steel Pipe,
Galvanized Steel Sheets,
Carbon Steel Sheet,
Galvanized Steel Coil,
Seamless Steel Tube,
Stainless Steel Plate
