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Model No.: ASTM A335 P11
Brand: Shandong Guanzhou Iron and Steel Co. LTD
Standard: Bs, Gb, Astm, Jis, Din, Api
Material: 10mowvnb, Api J55-Api P110, A53-A369, Q195-Q345, 10#-45#, St35-St52, 16mn, Cr-Mo Alloy
Section Shape: Round
Place Of Origin: China
Application: Fluid Pipe, Boiler Pipe, Drill Pipe, Gas Pipe, Oil Pipe, Structure Pipe
Production Process: Hot Rolled
Certification: Ce, Api
Surface Treatment: Copper Coated
Special Tube: Api Pipe
Whether Alloy: Is Alloy
Tolerance: ±1%, ±3%
Category: Seamless Steel Pipe
Processing Service: Cutting, Punching, Decoiling, Welding, Bending
Outer Diameter: 21.3mm-660mm
Wall Thickness: 0.5mm-20mm
Inspection: ISO,BV,SGS,MTC
Packing: Steel strip packed. Standard Export Seaworthy Package. Suit forall kinds of transport,or as required
MOQ: 5metric ton,sample order accepted
Shipment Time: Within 7-10 workdays after receiving deposit or L/C
Market: Southeast Asia, Middle East, Africa, Europe, South American and so on
Type Of Pipe Coating: Epoxy powder
Place Of Origin: Shandong, China
Standard: API, ASTM, BS, DIN, GB, JIS
| Selling Units | : | Ton |
| Package Type | : | Steel strip packed. Standard Export Seaworthy Package. Suit forall kinds of transport,or as required |
| Picture Example | : |
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Seamless steel pipes / tubes
Seamless Steel Pipe is a tubular section or hollow cylinder, usually but not necessarily of circular cross-section, used mainly to convey substances which can flow — liquids and gases (fluids), slurries, powders and masses of small solids.
Steel Pipe & Tubing - All you need to know
Steel Pipe & Tubing seem similar at first blush and in fact they share many characteristics but they also have some important differences.
Definitions:
Carbon Steel Seamless Pipe is a hollow steel shape intended for structural purposes and made from carbon, stainless, or galvanized steel further divided as:
Mechanical Tubing is used in low stress applications such as fences, kitchens, restaurants, hospitals, solar panels and made with wall thicknesses up to 10 gauge.
Structural Tubing is for high stress structural application like bridges, buildings, roll cages, and underwater platforms with wall thickness from 3/16" and up. It is often referred to as Hollow Structural Sections or just the acronym HSS.
Pipe is a hollow structure that is intended to carry material such as liquids, gasses, or even solids. Its wall thickness is described by its Schedule and it is often broken down by type using the method of manufacturing it, either ERW or Seamless.
How it's made:
Both Tubing and Pipe are manufactured by the first two methods below. The third is reserved for Tubing only.
Electric Resistance Welded, often abbreviated as ERW, is a process that uses specific machinery to shape the pipe and tubing. A continuous steel sheet is unwound from a coil and shaped using contoured rollers, forcing the edges together under pressure. These edges are then welded together by heating the material to over 2,000 degrees. After welding, the pipe or tubing is cut into the exact size needed.
Seamless Pipe (and tubing) is made by extruding a steel block or by drilling a solid steel bar. Next, the extrusion or the drilled steel bar is cold drawn through a dye to achieve the diameter and thickness needed. Because this process can cause mechanical hardening, sometimes the material is annealed and straightened as a final process. Seamless Pipe & Tubing is subdivided as:
Cold Drawn Seamless, or CDS, exhibits precise tolerances and a good surface finish.
Hot Finished Seamless, or HFS, has less critical tolerances and somewhat scaly finish and is not as strong as CDS.
For Drawn over Mandrel, or DOM tubing, the first stages of manufacturing are identical to ones used to make electric resistance welded tubing, but in the finishing stages the entire flash weld is taken out and the tube is cold drawn over a mandrel. A mandrel is a round object against which material can be forged or shaped. The cold drawn process provides the tube with better dimensional tolerances, improved surface finish and the strongest weld strength achievable.
Other models of seamless tubes:
There are many types of Seamless Pipe, such as A106 Seamless Pipe and A53 Seamless Pipe, which belong to the American standard seamless pipe, but A106 seamless pipe is called seamless steel pipe for high temperature operation, generally used for pressure pipes, and A53 seamless steel pipe is generally used for less demanding working environment. If you want to know the model and function of other seamless steel pipes, please feel free to contact me.
| Standard | API, ASTM, BS, DIN, GB, JIS |
| Outer Diameter | 21.3mm-660mm |
| Wall Thickness | 0.5mm-20mm |
| Dia Tolerance | Control with in the standard, OD:±1%, WT:±10% |
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Materials | 10#, 20#, 45#, Q235, Q345, Q195, Q215, Q345, ASTM A53/A106/A178/A333/A335, ST37, ST37-2, DIN 1629 ST35, ST45, DIN 17175 ST35.8, DIN 17175 19Mn5, 16Mn, Q345B, T1, T2, T5, T9, T11, T12, T22, T91, T92, P1, P2, P5, P9, P11,P12, P22, P91, P92, 15CrMO, Cr5Mo, 10CrMo910, 12CrMo, 13CrMo44, 30CrMo, GR.1, GR.3, GR.6, GR.7, Gr.B, X42, X46, X52, X60, X65, X70, X80, X100 |
| Zinc coating | Pre galvanized steel pipe: 60-150g/m² Hot dipped galvanized steel pipe:200-400g/m² |
| Type of pipe coating | Epoxy powder |
| Inspection | ISO,BV,SGS,MTC |
| Packing | Steel strip packed. Standard Export Seaworthy Package. Suit forall kinds of transport,or as required |
| Application | Accessorize, machinery parts, structure steel pipe, piling pipe, sewage and clear water transportation, Line pipe for petroleum and so on |
| MOQ | 5metric ton,sample order accepted |
| Shipment time | Within 7-10 workdays after receiving deposit or L/C |
| Market | Southeast Asia, Middle East, Africa, Europe, South American and so on |
| Descriptions | Grades | Standard | Specification (OD*WT)mm | Usage |
| Structural steel pipe | 20# 35# 45# Q345B, 16Mn, Q345B-E, 20Mn2, 25Mn, 30Mn2, 40Mn2, 45Mn2, SAE1018, SAE1020, SAE1518, SAE1045. | GB/T8162-2008 | 6-1020*1.5-100 | For commom structure |
| Fluid steel pipe | 10#, 20#, ASTM A106, A210, A53, 16Mn, Q345A.B.C.D.E, Q295B.C.D.E | GB/T8163-2008 | 8-630*1.0-40 | Fluid feeding |
| High pressure boiler pipe | 20G, 15MnG, 20MnG, 15CrMoG, 12Cr1MoVG, St35.8, St45, SA106b, SA106c, SA210a, SA210c, A335P2, P11, P12, P22, P91, P92, A213 T2,T9, T11, T12, T22, T23, T91 | GB/5310-2008, ASTM A 106-99, DIN 17175-79 | 14-630*2-80 | Temperature-resistant seamless steel pipe far high-pressure boiler |
| Oil casing pipe | API SPEC 5CT J55, K55, N80, L80, C90, C95, P110 | API SPEC 5CT, SY/T6194-96, GB/T222-84, | 10-530*1.5-36 | Boiler pipes for refinery,heatexchangeing pipes,seamless steel pipes for pipeline |
| Pipeline | API SPEC 5L, X42, X52, X60, X65,X70,X80 | API SPEC 5L, ISO 3183, GB/T 9711 | 60-630*1.5-40 | Carrying gas,water or oil in the industries of petroleum and natural gas |
| Alloy steel pipe | 4140, 42CrMo, 32CrMo, 15CrMo, Cr5Mo, 13CrMo44, 12Cr1MoV P22 T91,P91,P9, T9, Wb36 | GB5310-95, GB9948-88, ASTM A335/A335M, ASTM A213/213M, DIN17175-79, JISG3467-88, JISG3458-88 | 16-824*2-100 | The seamless steal pipes features resistance to high presure,high/low temperature and corrosion ano is used in the industries of petroleum, chemical engineering and. Electric pwer as well as boiler |
| Hydraulic prop pipe | 20#, 45#, 27SiMn, 30CrMoSiA | GB/T17396-2009 | 70-377*9-40 | Coal mine hydraulic support and pillar cylinder, column, can also be used for other hydraulic cylinder, column |
A335 is often called chrome moly pipe because of the chemical makeup of Molybdenum (Mo) and Chromium (Cr). Molybdenum increases the strength of steel as well as the elastic limit, resistance to wear, impact qualities, and hardenability. Moly increases the resistance to softening, restrains grain growth and makes chromium steel less susceptible to embrittlement. Moly is the most effective single additive that increases high temperature creep strength. It also enhances the corrosion resistance of steel, and inhibits pitting. Chromium (or chrome) is the essential constituent of stainless steel. Any steel with 12% or more Chrome is considered stainless. Chrome is virtually irreplaceable in resisting oxidation at elevated temperatures. Chrome raises the tensile, yield, and hardness at room temperatures. The composition chrome moly alloy steel pipe make it ideal for use in power plants, refineries, petro chemical plants, and oil field services where fluids and gases are transported at extremely high temperatures and pressures.
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| Grade | ASTM A335 P5 | ASTM A335 P9 | ASTM A335 P11 | ASTM A335 P22 | ASTM A335 P91 |
| Element | UNS Designation | K41545 | S50400 | K11597 | K21590 | K91560 |
| Carbon | 0.15 max | 0.15 max | 0.05 – 0.15 | 0.05 – 0.15 | 0.08 – 0.12 | V at 0.18 – 0.25 |
| Manganese | 0.30 – 0.60 | 0.30 – 0.60 | 0.30 – 0.60 | 0.30 – 0.60 | 0.30 – 0.60 | N at 0.030 – 0.070 |
| Phosphorous, max | 0.025 | 0.025 | 0.025 | 0.025 | 0.020 | Ni at 0.40 max |
| Sulfur, max | 0.025 | 0.025 | 0.025 | 0.025 | 0.010 | Al at 0.02 max |
| Silicon | 0.50 max | 0.25 – 1.00 | 0.50 – 1.00 | 0.50 max | 0.20 -0.50 | Cb at 0.06 – 0.10 |
| Chromium | 4.00 – 6.00 | 8.00 – 10.00 | 1.00 – 1.50 | 1.90 – 2.60 | 8.00 – 9.50 | Ti at 0.01 max |
| Molybdenum | 0.45 -0.65 | 0.90 – 1.10 | 0.44 – 0.65 | 0.87 – 1.13 | 0.85 – 1.05 | Zr at 0.01 max |
| Mechanical properties | P1,P2 | P12 | P23 | P91 | P92,P11 | P122 |
| Tensile strength | 380 | 415 | 510 | 585 | 620 | 620 |
| Yield strength | 205 | 220 | 400 | 415 | 440 | 400 |
| Tensile Strength, min., psi | P-5 | P-9 | P-11 | P-22 | P-91 | P91 shall not have a hardness not exceeding 250 HB/265 HV [25HRC]. |
| ksi | 60 | 60 | 60 | 60 | 85 |
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| MPa | 415 | 415 | 415 | 415 | 585 |
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| Yield Strength, min., psi |
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| ksi | 30 | 30 | 30 | 30 | 60 |
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| MPa | 205 | 205 | 205 | 205 | 415 |
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The good strength and its hardenability make alloy 4130 steel seamless round tubing a good fit for applications that deal with structural employment. If this low alloy steel is manufactured using specification ASTM A519, they are either hot finished or they may be cold finished. If the ASTM A519 Grade 4130 Pipe is to be a part of mechanical tubing, they could be strand cast or cast in ingots. 4130 Alloy Steel Seamless Pipe is customarily contrived by hot working steel. If imminent, these hot worked tubular pipes are subsequently cold finished in order to construct the solicited dimensions, shape or properties. Pipes are commonly furnished in any one of the following shapes - square, round, rectangular as well as sections of a specific nature. To circumscribe the portions of the elements specified, a heat analysis could be employed. The 4130 Chromoly Steel Pipe could be coated with a film of oil before the performance of any shaping operation. Coating is applied on these pipes to hinder rust if specified by the buyer.
| Standard | Steel Grade | C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Mo(%) |
| A519 | 1010 | 0.05-0.15 | 0.15-0.35 | 0.3-0.6 | ≤0.04 | ≤0.05 | - | - |
| 1020 | 0.15-0.25 | 0.15-0.35 | 0.3-0.6 | ≤0.04 | ≤0.05 | - | - | |
| 1045 | 0.43-0.50 | 0.15-0.35 | 0.6-0.9 | ≤0.04 | ≤0.05 | - | - | |
| 4130 | 0.28-0.33 | 0.15-0.35 | 0.4-0.6 | ≤0.04 | ≤0.04 | 0.8-1.1 | 0.15-0.25 | |
| 4135 | 0.32-0.39 | 0.15-0.35 | 0.6-0.9 | ≤0.04 | ≤0.04 | 0.8-1.1 | 0.15-0.25 | |
| 4140 | 0.38-0.42 | 0.15-0.35 | 0.7-1.0 | ≤0.04 | ≤0.04 | 0.8-1.1 | 0.15-0.25 |
| End Shape | Beveled end, plain end, vanished, or adding plastic caps to protect the two ends as per customer's requirements | |
| Surface Treatment | Oiled, Galvanized, Phosphate etc | |
| Technique | Cold drawn & cold rolled | |
| Application | 1. Automotive and mechanical pipes | |
| 2. Petroleum cracking pipes | ||
| 3. High Pressure Boiler Pipe | ||
| 4. Low and middle pressure fluid transportation pipeline | ||
| 5. Chemical fertilizer equipment pipes | ||
| 6. Heat exchanger pipes | ||
| Delivery Conditions | 1. BK (+C) | No heat treatment after last cold forming process. |
| 2. BKW (+LC) | After last heat treatment there is a light finishing pass (cold drawing) | |
| 3. BKS (+SR) | After the final cold forming process the tubes are stress relieve annealed. | |
| 4. GBK (+A) | After the final cold forming process the tubes are annealed in a controlled atmosphere. | |
| 5. NBK (+N) | After the final cold forming process the tubes are annealed above the upper transformation point in a controlled atmosphere. | |
| Package | 1. Bundle Packing. | |
| 2. Plain end or vanished as per customer's request. | ||
| 3. Wrapped in waterproof paper. | ||
| 4. Sackcloth with several steel strips. | ||
| 5. Pack in heavy tri-wall boxes. | ||
Q1:Can you send samples?
A:Of course, we can provide customers with free samples and express shipping service to all over of the world.
Q2:What product information do I need to provide?
A:Please kindly provide the grade, width, thickness, surface treatment requirement should you have and quantities you need to purchase.
Q3:It's my first time to import steel products, can you help me with it?
A:Sure,we have agent to arrange the shipment, we will do it together with you.
Q4:What ports of shipment are there?
A:Under normal circumstances, we ship from Shanghai, Tianjin, Qingdao, Ningbo ports, you can specify other ports according to your needs.
Q5:What about product prices information?
A:Prices various according to periodic price changes of raw materials.
Q6:What is your terms of payment ?
A:Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment or based on BL copy or LC at sight.
Q7:Do you provide custom made Products service?
A: Yes,if you have your own design , we can produce according to your specification and drawing.
Q8:What are the certifications for your products?
A:We have ISO 9001, MTC, third parties’ inspections are all available such SGS, BV ect.
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