ASTM A53 Steel Pipe
ASTM A53 Steel Pipe - industrial steel pipe
Factory supply ASTM A199 alloy condenser tubes with full international equivalent grades, custom machining, complete export certification & technical datasheet support.
ASTM A199/A199M-92 is the official specification for seamless cold-drawn intermediate chromium-molybdenum alloy steel tubes, dedicated to heat exchangers, condensers and all kinds of heat transfer apparatus.
All A199 series tubes adopt ferritic Cr-Mo alloy formula, featuring outstanding high-temperature creep resistance, oxidation resistance and medium corrosion resistance, far superior to ordinary carbon seamless pipes.
| Mark | Name | Feature & Application |
|---|---|---|
| BK | Cold Finished Hard | No post cold drawing heat treatment, low deformability for rigid mechanical parts |
| BKW | Cold Finished Soft | Light finish draw after annealing, limited bending & expanding available |
| GBK | Fully Annealed | Controlled atmosphere full annealing, high plasticity for coil heat exchangers |
| NBK | Normalized | High temp normalizing, uniform grain for high temp condenser core |
Optional surface treatment: Anti-rust oil, varnish, passivation, phosphating, shot blasting, industrial paint.
ASTM A199 alloy tubes perform stably under high temperature, high pressure & acid/alkali corrosive media:
| Service Condition | Typical Equipment |
|---|---|
| High Temperature | Boiler, Superheater, Steam Header |
| High Pressure | Power Process Piping | Corrosive Media | Chemical & Refinery Heat Exchanger | Long Creep Service | Thermal Power Station Long Run Units |
ASTM A335 P Series Alloy Pipe
ASTM A234 WP Series Elbow Tee Reducer
ASTM A182 F Series Forged Alloy Flange
Official full MTC material test report issued for each shipment batch.
| Element | Performance Effect |
|---|---|
| Chromium (Cr) | Improve oxidation & corrosion resistance, boost high temperature tensile strength |
| Molybdenum (Mo) | Remove temper brittleness, raise high temp hardness & sulfur resistance |
| Vanadium (V) | Refine grain, improve long-term creep resistance under heat load |
| Nickel (Ni) | Promote low temperature impact toughness |
| Manganese (Mn) | Neutralize harmful sulfur impurities |
| Silicon / Al | Deoxidize molten steel, reduce internal inclusions |
| Tungsten / Co | Enhance high temperature abrasion & creep performance |
Tubes bundled by steel straps, plastic end caps for collision protection, anti-rust oil coated for sea transport. Same furnace batch & same spec in one bundle with unified identification label. Wooden pallet or full container loading, support EXW / FOB / CIF / DAP terms.
ASTM A199 covers seamless, cold-drawn, intermediate alloy steel tubes for heat exchangers, condensers and similar heat-transfer equipment. Grades are based on chromium-molybdenum compositions for elevated temperature service.
| Grade | C ≤ | Mn | P ≤ | S ≤ | Si | Cr | Mo |
|---|---|---|---|---|---|---|---|
| T4 | 0.15 | 0.30–0.60 | 0.030 | 0.030 | 0.50–1.00 | 2.15–2.85 | 0.44–0.65 |
| T5 | 0.15 | 0.30–0.60 | 0.030 | 0.030 | ≤0.50 | 4.00–6.00 | 0.45–0.65 |
| T7 | 0.15 | 0.30–0.60 | 0.030 | 0.030 | 0.50–1.00 | 6.00–8.00 | 0.45–0.65 |
| T9 | 0.15 | 0.30–0.60 | 0.030 | 0.030 | 0.25–1.00 | 8.00–10.00 | 0.90–1.10 |
| T11 | 0.15 | 0.30–0.60 | 0.030 | 0.030 | 0.50–1.00 | 1.00–1.50 | 0.44–0.65 |
| T22 | 0.15 | 0.30–0.60 | 0.030 | 0.030 | ≤0.50 | 1.90–2.60 | 0.87–1.13 |
* Optional: Ni ≤ 0.40; V 0.18–0.25; Nb 0.06–0.10; N 0.03–0.07; Al ≤ 0.04
| Grade | Tensile Strength (MPa ≥) |
Yield Strength (MPa ≥) |
Elongation (%) |
Hardness (HRB ≤) |
|---|---|---|---|---|
| T4 / T5 / T7 / T9 / T11 / T22 | 415 | 170 | 30 / 22* | 85 |
* Longitudinal / Transverse; mechanical properties not applicable to tubes < 3.2 mm ID or < 0.4 mm wall.
With years of expertise, we provide a wide range of steel tube processing services. From basic sawing and machining to complex bending and upsetting operations, we support you at every stage of your project.
Our capabilities include eccentricity reduction and concentricity improvement through turning and grinding. We specialize in creating complex geometries using rotary swaging and axial forming, and offer property modifications through partial heat treatment to meet your exact requirements.
Alloy steel pipes are engineered for high-temperature, high-pressure and corrosive service where carbon steel cannot deliver sufficient strength or long-term reliability.
By incorporating Cr, Mo, Ni and other alloying elements, these pipes provide excellent resistance to oxidation, creep and corrosion—making them ideal for critical power, petrochemical and refining systems.
| Condition | Typical Application |
|---|---|
| High Temperature | Boilers, superheaters, steam headers |
| Low Temperature | Cryogenic processing systems |
| High Pressure | Power & process piping |
| Corrosive Media | Chemical & petrochemical plants |
| Creep Service | Thermal power stations |
| Product | Specification |
|---|---|
| Seamless Pipes | ASTM A335 P1 / P5 / P9 / P11 / P22 / P91 |
| Butt Weld Fittings | ASTM A234 WP1 / WP5 / WP9 / WP11 / WP22 / WP91 |
| Forged Fittings & Flanges | ASTM A182 F1 / F5 / F9 / F11 / F22 / F91 |
Sunny Steel supplies alloy steel piping systems worldwide, supporting projects that demand certified materials, full traceability and long-term operational reliability.
Chemical composition inspection, mechanical properties test(tensile strength,yield strength, elongation, flaring, flattening, bending, hardness, impact test), surface and dimension test, non-destructive test, hydrostatic test.
Identification of the chemical composition of the metal used to manufacture the fitting. Uses PMI sensors, including X-ray fluorescence or optical emission spectrometry.
Steel pipe delivery status(condition): cold / hard (BK), cold / soft (BKW), after cold stress relief annealing (BKS), annealing (GBK), normalized (NBK).
| Term | Symbol | Explanation |
|---|---|---|
| Cold-finished/hard (cold-finished as-drawn) | BK | No heat treatment after the last cold-forming process. The tubes therefore have only low deformability. |
| Cold-finished/soft (lightly cold-worked) | BKW | After the last heat treatment there is a light finishing pass (cold drawing). With proper subsequent processing, the tube can be cold-formed (e.g. bent, expanded) within certain limits. |
| Annealed | GBK | After the final cold-forming process the tubes are annealed in a controlled atmosphere or under vacuum. |
| Normalized | NBK | The tubes are annealed above the upper transformation point in a controlled atmosphere or under vacuum. |
The general cold strip mills, volume should go through continuous annealing (CAPL unit) to eliminate cold hardening and rolling stress, or batch annealing reach the mechanical properties of the corresponding standard specifies. Cold rolled steel surface quality, appearance, dimensional accuracy better than hot-rolled plate, and right-rolled thin product thickness is about 0.18mm, so the majority of users favor.
Cold rolled steel coil substrate products deep processing of high value-added products. Such as electro-galvanized, hot dip galvanized, electro-galvanized fingerprint resistant, painted steel roll damping composite steel, PVC laminating steel plates, etc., so that the excellent quality of these products has a beautiful, high resistance to corrosion, has been widely used.
Cold rolled steel coil finishing after annealing, cut the head, tail, trimming, flattening, smooth, heavy volume, or longitudinal clipboard. Cold-rolled products are widely used in automobile manufacturing, household electrical appliances, instruments, switches, buildings, office furniture and other industries. Steel plate strapping package weight of 3 to 5 tons. Flat sub-volume typically 3 to 10 tons / volume. Coil diameter 6m.
Bare packing/bundle packing/crate packing/wooden protection at the both sides of tubes and suitably protected for seaworthy delivery or as requested.
There are probably hundreds of different methods for packing a pipe, and most of them have merit, but there are two principles that are vital for any method to work: prevent rusting and sea transportation security.
Our packing can meet any needs of the customers.
Commonly used alloying elements and their effects are listed in the table given below.
| Alloying Elements | Effect on the Properties |
|---|---|
| Chromium | Increases Resistance to corrosion and oxidation. Increases hardenability and wear resistance. Increases high temperature strength. |
| Nickel | Increases hardenability. Improves toughness. Increases impact strength at low temperatures. |
| Molybdenum | Increases hardenability, high temperature hardness, and wear resistance. Enhances the effects of other alloying elements. Eliminate temper brittleness in steels. Increases high temperature strength. |
| Manganese | Increases hardenability. Combines with sulfur to reduce its adverse effects. |
| Vanadium | Increases hardenability, high temperature hardness, and wear resistance. Improves fatigue resistance. |
| Titanium | Strongest carbide former. Added to stainless steel to prevent precipitation of chromium carbide. |
| Silicon | Removes oxygen in steel making. Improves toughness. Increases hardness ability |
| Boron | Increases hardenability. Produces fine grain size. |
| Aluminum | Forms nitride in nitriding steels. Produces fine grain size in casting. Removes oxygen in steel melting. |
| Cobalt | Increases heat and wear resistance. |
| Tungsten | Increases hardness at elevated temperatures. Refines grain size. |
Ceramic lined pipe is made through self-propagating high-temperature synthesis (SHS) technique.
Cast basalt lined steel pipe is composed by lined with cast basalt pipe, outside steel pipe and cement mortar filling between the two layers.
Ceramic tile lined pipes have very uniform coating of specially formulated ceramic material that is affixed to the inner of the pipe.
The material of the rare earth alloy wear-resistant pipe is ZG40CrMnMoNiSiRe, which is also the grade of rare earth alloy steel.
Tubes Erosion Shields are used to protect boiler tubing from the highly erosive effects of high temperatures and pressures thereby greatly extending tube life.
The ASTM A213 T91 seamless tubes are primarily used for boiler, superheater, and heat-exchanger.
When you partner with Sunny Steel, you can stop worrying about meeting deadlines thanks to our responsive and timely service. You'll also say goodbye to unnecessary shopping around. Instead, you'll get white glove service from an expert who understands your needs and can get you the materials you need quickly.
