Shandong Weichuan Metal Prodducts Co., Ltd.

Products

  • A53 A106GR. B a283d carbon steel seamless steel pipe manufacturer price concessions

    A53 A106GR. B a283d carbon steel seamless steel pipe manufacturer price concessions

    Carbon steel seamless steel pipe is a kind of long steel with. Steel pipes have hollow sections and are widely used as pipelines for transporting fluids, such as pipelines for transporting oil, natural gas, gas, water and some solid materials. Compared with solid steel such as round steel, steel pipe has the same flexural and torsional strength and light weight. It is an economic section steel. It is widely used in the manufacture of structural parts and mechanical parts, such as oil drill pipe, automobile transmission shaft, bicycle frame and steel scaffold used in construction.
    Manufacturing ring parts with steel pipes can improve the utilization rate of materials, simplify the manufacturing process, and save materials and processing hours, such as rolling bearing rings, Jack sleeves, etc. at present, steel pipes have been widely used for manufacturing.
    Steel pipe is also an indispensable material for all kinds of conventional weapons. Gun barrel and barrel should be made of steel pipe. Steel pipe can be divided into round pipe and special-shaped pipe according to different cross-sectional area and shape. Because the circular area is the largest under the condition of equal circumference, more fluid can be transported by circular pipe. In addition, when the ring section is subjected to internal or external radial pressure, the force is more uniform. Therefore, the vast majority of steel pipes are round pipes.
    Manufacturing ring parts with steel pipes can improve the utilization rate of materials, simplify the manufacturing process, and save materials and processing hours, such as rolling bearing rings, Jack sleeves, etc. at present, steel pipes have been widely used for manufacturing.

  • 201 202 203 304 304L 316 316L 321 2205 310S 316TIStainless steel rod

    201 202 203 304 304L 316 316L 321 2205 310S 316TIStainless steel rod

    Stainless steel rod specifications: hot-rolled and forged stainless steel rods with a size (diameter, side length, thickness or distance between opposite sides) not greater than 250mm, above Ф1.0MM and below 250mm.
    Stainless steel rod material: 304, 304L, 321, 316, 316L, 310S, 630, 1Cr13, 2Cr13, 3Cr13, 1Cr17Ni2, duplex steel, antibacterial steel, etc.
    Stainless steel rods have broad application prospects and are widely used in hardware kitchenware, shipbuilding, petrochemical, machinery, medicine, food, electricity, energy, building decoration, nuclear power, aerospace, military and other industries! Equipment used in seawater, chemical, dye, paper, oxalic acid, fertilizer and other production equipment; food industry, coastal facilities, ropes, CD rods, bolts, nuts.
    Quality management: ISO9001: 2000 quality management system certification, production license, etc.!
    Remarks: Stainless steel rods of various materials and specifications can be customized non-standard.
    Introduction of stainless steel rod material, application range and quality management
    Material: 304, 304L, 321, 316, 316L, 310S, 630,
    Common materials are 201, 202, 301, 304, 303, 316, 316L, 304L, 321, 2520, 1Cr13, 2Cr13, 3Cr13, duplex steel, antibacterial steel and other materials! The specification is expressed by diameter, such as “50″ which means round steel with a diameter of 50 mm. Round steel is divided into three types: hot rolled, forged and cold drawn. The specification of hot-rolled round steel is 5.5-250 mm.
    Application scope: petroleum, electronics, chemical, pharmaceutical, textile, food, machinery, construction, nuclear power, aerospace, military and other industries!
    Quality management: ISO9001: 2000 quality management system certification, production license, etc.!
    According to the production process, stainless steel rods can be divided into three types: hot-rolled, forged and cold-drawn. The specifications of hot-rolled stainless steel round bars are 5.5-250 mm. Among them: small stainless steel round bars of 5.5-25 mm are mostly supplied in bundles of straight bars, which are often used as steel bars, bolts and various mechanical parts; stainless steel round bars larger than 25 mm are mainly used for the manufacture of mechanical parts or seamless steel pipe billets. .
    According to the composition, it can be divided into Cr series (SUS400), Cr-Ni series (SUS300), Cr-Mn-Ni (SUS200) and precipitation hardening series (SUS600).
    200 series—chromium-nickel-manganese austenitic stainless steel
    300 series—chromium-nickel austenitic stainless steel
    301—Good ductility, used for molded products. It can also be hardened by machine speed. Good weldability. Abrasion resistance and fatigue strength are better than 304 stainless steel.
    302—The corrosion resistance is the same as that of 304, because the carbon content is relatively high, the strength is better.
    303—By adding a small amount of sulfur and phosphorus, it can be processed more easily.
    304—namely 18/8 stainless steel. The GB grade is 06Cr19Ni10.
    309—Compared with 304, it has better temperature resistance.
    316—After 304, the second most widely used steel grade, mainly used in food industry and surgical equipment, adding molybdenum element to obtain a special corrosion-resistant structure. Because it has better resistance to chloride corrosion than 304, it is also used as “ship steel”. SS316 is usually used in nuclear fuel recovery devices. 18/10 grade stainless steel usually also meets this application level. [1]
    Model 321—Except for the addition of titanium to reduce the risk of material weld corrosion, other properties are similar to 304.
    400 series-ferritic and martensitic stainless steel
    408—Good heat resistance, weak corrosion resistance, 11% Cr, 8% Ni.
    409—the cheapest model (British and American), usually used as a car exhaust pipe, is a ferritic stainless steel (chrome steel).
    410—Martensite (high-strength chromium steel), good wear resistance, poor corrosion resistance.
    416—Sulfur is added to improve the processing performance of the material.
    420—”Cutting tool grade” martensitic steel, similar to the earliest stainless steel such as Brinell high chromium steel. It is also used for surgical knives, which can be very bright.
    430—Ferritic stainless steel, for decoration, such as car accessories. Good formability, but poor temperature resistance and corrosion resistance.
    440—High-strength cutting tool steel with slightly higher carbon content. After proper heat treatment, higher yield strength can be obtained. The hardness can reach 58HRC, which is among the hardest stainless steels. The most common application example is the “razor blade”. There are three commonly used models: 440A, 440B, 440C, and 440F (easy processing type).
    500 series—heat-resistant chromium alloy steel.
    600 series—Martensitic precipitation hardening stainless steel.
    630—The most commonly used type of precipitation hardening stainless steel, usually called 17-4; 17% Cr, 4% Ni.

  • 316 316L TP316 TP316L TP321 stainless steel pipe

    316 316L TP316 TP316L TP321 stainless steel pipe

    “Based on domestic market and expand abroad business” is our progress strategy for Discount Price China ASTM A554 TP304, TP304L 316 TP316LWelded Stainless Steel Pipe, The staff of our business with all the use of cutting-edge technologies delivers impeccable excellent solutions supremely adored and appreciated by our customers globally.
    Discount Price China Welded Pipe, Steel Round Pipe, Our skilled engineering group will always be ready to serve you for consultation and feedback. We’re able to also give you with absolutely free samples to meet your requirements. Finest efforts will likely be produced to offer you the ideal service and products. For anyone who is thinking about our company and merchandise, remember to contact us by sending us emails or contact us quickly. As a way to know our merchandise and firm. lot more, you can come to our factory to find out it. We’ll always welcome guests from all over the world to our business to build company relations with us. Be sure to feel free to get in touch with us for business and we believe we are going to share the top trading practical experience with all our merchants.

  • 304 304L stainless steel pipe industrial stainless steel pipe

    304 304L stainless steel pipe industrial stainless steel pipe

    304 stainless steel is a common material in stainless steel, with a density of 7.93 g/cm³; it is also called 18/8 stainless steel in the industry, which means that it contains more than 18% chromium and more than 8% nickel; high temperature resistance of 800 ℃, good processing performance , High toughness, widely used in industry and furniture decoration industry and food and medical industry. However, it should be noted that compared with ordinary 304 stainless steel, food-grade 304 stainless steel has a stricter content index. For example, the international definition of 304 stainless steel is basically 18%-20% chromium, 8%-10% nickel, but food-grade 304 stainless steel contains 18% chromium and 8% nickel, allowing fluctuations within a certain range, and Limit the content of various heavy metals. In other words, 304 stainless steel is not necessarily food grade 304 stainless steel
    Common labeling methods on the market include 06Cr19Ni10 and SUS304, among which 06Cr19Ni10 generally means national standard production, 304 generally means ASTM standard production, and SUS 304 means Japanese standard production.
    304 is a versatile stainless steel, which is widely used to make equipment and parts that require good overall performance (corrosion resistance and formability). In order to maintain the inherent corrosion resistance of stainless steel, steel must contain more than 18% chromium and more than 8% nickel. 304 stainless steel is a grade of stainless steel produced in accordance with the American ASTM standard

  • Dachang genuine 304L stainless steel pipe sales

    Dachang genuine 304L stainless steel pipe sales

    304L stainless steel pipe belongs to the international stainless steel marking method. 304L stainless steel pipe – s30403 (American AISI, ASTM) 304L corresponds to the Chinese brand 00Cr19Ni10. Characteristics and application: steel with lower carbon content than 0Cr19Ni9 has superior intergranular corrosion resistance. It is a component without heat treatment after welding.

  • A335 T91 high pressure steel pipe quality assurance

    A335 T91 high pressure steel pipe quality assurance

    A335 T91 steel is a new type of martensitic heat-resistant steel developed by American National elephant ridge laboratory and Metallurgical Materials Laboratory of American combustion engineering company. 

  • A333GR.6  SA210C  ST52 thick wall square pipe quality assurance

    A333GR.6 SA210C ST52 thick wall square pipe quality assurance

    Large diameter thick walled square pipe is a kind of light thick walled steel pipe with hollow square section, also known as steel cold-formed profile. It is a section steel with square section shape and size, which is made of Q235 hot-rolled or cold-rolled strip or coil as the base material, cold bending and high-frequency welding.

  • Automobile precision bright tube factory

    Automobile precision bright tube factory

    Because there is no oxide layer on the inner and outer walls of the precision bright pipe, no leakage under high pressure, high precision, high finish, no deformation in cold bending, flaring, flattening and no cracks, it is mainly used to produce products of pneumatic or hydraulic components, such as air cylinder or oil cylinder, which can be seamless pipe or welded pipe.

  • Spot warranty sales of 42CrMo4 alloy steel pipe manufacturers

    Spot warranty sales of 42CrMo4 alloy steel pipe manufacturers

    42crmo4 is an industrial material. 42CrMo4 is used to manufacture forgings that require higher strength than 35CrMo steel and a larger quenched and tempered section, such as large gears for locomotive traction, supercharger transmission gears, rear axles, connecting rods and spring clips that are heavily loaded. 42CrMo4 is also It can be used for oil deep well drill pipe joints and fishing tools under 2000m.
    1. Hot rolling (extruded seamless steel pipe): round tube billet→heating→perforation→three-roll cross rolling, continuous rolling or extrusion→tube removal→sizing (or reducing)→cooling→straightening→hydraulic test (Or flaw detection)→mark→warehousing
    2. Cold drawn (rolled) seamless steel pipe: round tube blank → heating → piercing → heading → annealing → pickling → oiling (copper plating) → multi-pass cold drawing (cold rolling) → billet tube → heat treatment → straightening →Hydraulic test (flaw detection)→Marking→Warehousing
    Carbon C: 0.38~0.45
    Silicon Si: 0.17~0.37
    Manganese Mn: 0.50~0.80
    Sulfur S: allowable residual content ≤0.035
    Phosphorus P: allowable residual content ≤0.035
    Chromium Cr: 0.90~1.20
    Nickel Ni: allowable residual content ≤0.030
    Copper Cu: allowable residual content ≤0.030
    Molybdenum Mo: 0.15~0.25
    42CrMo heat treatment:
    Annealing No.1 “760±10℃ annealing, furnace cooling to 400℃ air cooling.
    HB220-230
    Normalize No.4 860±10℃ normalize, air-cooled out of the furnace.
    Thermal processing specifications
    The heating temperature is 1150 ~1200°C, the starting temperature is 1130 ~1180°C, and the ending temperature is> 850°C, when φ> 50mm, slow cooling.
    Normalizing norms
    The normalizing temperature is 850~900°C, and the furnace is air-cooled.
    High temperature tempering specification
    The tempering temperature is 680~700°C, and the furnace is air-cooled.
    Quenching and tempering specifications
    Preheating temperature is 680~700°C, quenching temperature is 840~880°C, oil cooling, tempering temperature is 580°C, water cooling or oil cooling, hardness ≤217HBW.
    Specification for sub-temperature quenching
    Quenching temperature 900°C, tempering temperature 560°C, hardness (37±1) HRC
    Specification for induction hardening and tempering
    The quenching temperature is 900°C, the tempering temperature is 150~180°C, and the hardness is 54~60HRC.

  • A53 A283D GGP ST33 STPY41 square tube with high quality and low price

    A53 A283D GGP ST33 STPY41 square tube with high quality and low price

    Q235 welded square pipe is an appellation of square pipe, that is, steel pipe with the same side length. It is made of rolled strip steel through technological solution. Normally, the strip steel is unpacked, flat, curled and welded to form a round pipe, and then the round pipe is rolled to check the Q235 welded square pipe, and then cut to the required length.

  • Chinese pipe insulation steel pipe manufacturer

    Chinese pipe insulation steel pipe manufacturer

    Three layer PE anti-corrosion structure of pipeline: the first layer of epoxy powder (FBE > 100um), the second layer of adhesive (AD) 170 ~ 250um, and the third layer of polyethylene (PE) 2.5 ~ 3.7mm.

  • A333GR.6  A106C ST52 A213 T22 ST35 seamless steel pipe

    A333GR.6 A106C ST52 A213 T22 ST35 seamless steel pipe

    Seamless steel pipe for low temperature pipeline
    Spot specifications: 8-1240×1-200mm<1/8”—48”×SCH5S—SCH160, STD, XS, XXS>
    Product material: 10MnDG, 09DG, 09Mn2VDG, 06Ni3MoDG,
    ASTM A333-Grade1, Grade3, Grade4, Grade6, Grade7, Grade8, Grade9,
    Grade10, Grade11
    Product application: suitable for -45℃~-195℃ low-temperature pressure vessel pipes and seamless steel pipes for low-temperature heat exchanger pipes
    Production process: cold drawn and hot rolled
    Weight calculation formula: (outer diameter-wall thickness)*wall thickness*0.02466/1000=m/ton
    Microstructure editing voice
    The quenching temperature of low temperature steel pipe is A3+(30~50)℃. In actual operation, the upper limit is generally taken. A higher quenching temperature can speed up the heating speed of low-temperature steel pipes, reduce surface oxidation, and improve work efficiency. In order to homogenize the austenite of the workpiece, sufficient holding time is required. If the actual amount of furnace installed is large, the holding time needs to be extended appropriately. Otherwise, there may be insufficient hardness due to uneven heating. However, if the holding time is too long, coarse grains and serious oxidative decarburization will also occur, which will affect the quenching quality. We believe that if the installed furnace volume is greater than the provisions of the process documents, the heating and holding time needs to be extended by 1/5.
    Because of the low hardenability of low-temperature steel pipes, a 10% saline solution with a high cooling rate should be used. After the workpiece enters the water, it should be quenched, but not cold. If the 45# precision steel pipe is cooled in salt water, it may crack the workpiece. This is because when the workpiece is cooled to about 180°C, the austenite rapidly transforms into horses. It is caused by the excessive structural stress caused by the body. Therefore, when the quenched low-temperature steel pipe is rapidly cooled to this temperature region, a slow cooling method should be adopted. Since the temperature of the outlet water is difficult to control, it must be operated by experience. When the shaking of the workpiece in the water stops, the outlet can be cooled by air (oil cooling is better). In addition, the workpiece should be moved but not static when entering water, and should be moved regularly according to the geometric shape of the workpiece. The static cooling medium and the static workpiece result in uneven hardness, uneven stress and large deformation or even cracking of the workpiece.
    The hardness of the quenched and tempered part of low temperature steel pipe after quenching should reach HRC56~59. The possibility of large cross-section is lower, but it cannot be lower than HRC48. Otherwise, it means that the workpiece has not been completely quenched, and sorbite or even ferrite may appear in the structure. Organization, this kind of organization is still retained in the matrix through tempering, failing to achieve the purpose of quenching and tempering.
    The high temperature tempering of low temperature steel pipe after quenching, the heating temperature is usually 560~600℃, and the hardness requirement is HRC22~34. Because the purpose of quenching and tempering is to obtain comprehensive mechanical properties, the hardness range is relatively wide. However, if the drawings have hardness requirements, the tempering temperature must be adjusted according to the drawings to ensure the hardness. For example, some shaft-type low-temperature steel pipes require high strength and hardness requirements; and some gears and shaft parts with keyways need to be milled and inserted after quenching and tempering, so the hardness requirements are lower. Regarding the tempering and holding time, it depends on the hardness requirements and the size of the workpiece. We believe that the hardness after tempering depends on the tempering temperature, and has little to do with the tempering time, but it must be back through. Generally, the tempering and holding time of the workpiece is always More than one hour.