Rare Earth Alloy
Rare Earth Alloy Wear-Resistant Pipe - industrial steel pipe
Carbon Steel, Stainless Steel, Alloy Steel & Wear Resistant Materials
Explore Sunny Steel's comprehensive material library covering metallic alloys, wear-resistant materials and engineering plastics for pipes, fittings, boilers, heat exchangers and abrasion-resistant systems.
Sunny Steel Enterprise Ltd. is a manufacturer specializing in abrasion-resistant pipes, wear-resistant steel pipes, and composite pipeline solutions. Their main focus is on high-performance materials for harsh industrial environments such as mining, power plants, metallurgy, cement, and chemical industries.
Different industrial projects face distinct challenges including heavy static/dynamic loads, extreme high/low temperatures, sustained high pressure, chemical corrosive media and abrasive slurry wear. Our complete range of carbon, low alloy, heat-resistant Cr-Mo alloy and stainless steel seamless pipe materials can perfectly match every service environment across construction, automotive, plant engineering, process industry, municipal infrastructure and mining sectors. Each material grade comes with standardized mechanical performance and reliable long-term stability. Browse our full material groups to select the optimal steel grade tailored to your project design parameters.
Material grade selection directly determines pipeline service life, safety and maintenance cost. Mild carbon steel applies to general medium-pressure clean media and ordinary load structures; low-alloy high-strength steel fits heavy-load, low-temperature outdoor infrastructure and vehicle chassis; Cr-Mo heat-resistant alloy is designed for power plant and refinery high-temperature high-pressure process piping; stainless steel provides outstanding resistance against acid, alkali and chloride corrosion for pharmaceutical, food and chemical process lines. All materials comply with global GB, ASTM, EN and DIN standards with complete batch test documentation.
Complete seamless steel pipe material portfolio covering carbon, low alloy, heat-resistant alloy and stainless steel grades
| Standard System | Main Standard Documents | Material Coverage |
|---|---|---|
| Chinese GB Standard | GB/T8162, GB/T8163, GB5310, GB/T14976 | Carbon, low alloy, boiler alloy, stainless steel pipes |
| US ASTM Standard | A106, A335, A519, A312 | Carbon, Cr-Mo heat alloy, mechanical alloy, stainless tubing |
| European EN Standard | EN10210, EN10216, EN10305 | Structural, process, automotive precision seamless tubes |
| German DIN Standard | DIN2391, DIN2448 | Cold drawn precision tubes for machinery & automotive |
| Grade | Equivalent Foreign Grade | Core Feature | Typical Application Fields |
|---|---|---|---|
| 20# | A106 Gr.B, C45 | Good weldability, cost-effective, medium pressure resistance | Municipal water/gas pipelines, general plant auxiliary piping, simple steel frames |
| 45# | ST45, 1045 | High hardness after heat treatment, good machinability | Automotive steering sleeves, mechanical transmission shaft blanks |
Carbon steel can be processed into hot-dip galvanized or 3PE coated pipes to improve anti-corrosion performance for outdoor municipal infrastructure.
| Grade | Equivalent Foreign Grade | Core Feature | Typical Application Fields |
|---|---|---|---|
| 16Mn / Q345 | E355 / ST52 | High yield strength, excellent low-temperature impact toughness | Bridges, offshore wind frames, truck chassis, cold-region infrastructure |
| 4130 / 4140 Alloy | 4130CrMo, 42CrMo | High fatigue resistance, heavy load bearing capacity | Off-road vehicle hydraulic cylinders, mining heavy mechanical parts |
Normalized NBK delivery state is recommended for Q345/E355 when used in cold climate and coastal marine projects.
| Grade | ASTM Equivalent | Max Service Temp | Typical Application Fields |
|---|---|---|---|
| 15CrMoG | A335 P11 / WP11 | ≤580℃ | Medium temperature boiler headers, refinery heating pipelines |
| 12Cr2Mo1G | A335 P22 / WP22 | ≤600℃ | Power plant superheater, high-temperature chemical reaction piping |
| 10Cr9Mo1VNb | A335 T91 / P91 | ≤620℃ | Ultra-supercritical thermal power main steam pipelines |
All Cr-Mo alloy pipes must undergo full annealing + tempering heat treatment to guarantee long-term creep resistance under sustained high pressure and heat.
| Grade | Standard Reference | Core Anti-Corrosion Performance | Typical Application Fields |
|---|---|---|---|
| 304 | ASTM A312, GB/T14976 | Resist weak acid, oxidation and atmospheric rust | Food processing, general chemical clean medium pipelines |
| 316L | ASTM A312, EN10216-5 | Excellent chloride & strong acid resistance, low carbon anti-intergranular corrosion | Pharmaceutical synthesis, seawater desalination, pickling workshop piping |
Stainless steel sanitary tubes can be internally mirror polished to Ra ≤0.8μm for sterile pharmaceutical and food production lines.
| Mark Code | Treatment State | Applicable Material & Processing Scene |
|---|---|---|
| BK | Cold Finished Hard | Precision sleeves without bending processing (automotive, machinery) |
| BKW | Stress Relieved | Slightly bent structural tubes, general frame materials |
| GBK | Fully Annealed | Complex multi-angle bending components, cold forming parts |
| NBK | Normalized | Low-temperature projects, heavy-load structural & alloy boiler tubes |
EN 10204 3.1 / 3.2 MTC material test certificates are provided for every batch, including full chemical spectrum and mechanical test data for tender submission and third-party audit.
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.