SAE 4130 EN 41B Seamless Boiler Tube 155mm OD x 110mm ID - Chromoly Alloy Steel for High-Temperature Applications
Price:
800 - 9000 USD / ton
MOQ:
5T
Delivery Time:
60-75days
Brand:
HDT
Product Description
SAE 4130 / EN 41B Seamless Boiler Tubes
High-quality ESR grade seamless hollow boiler tubes with outer diameter 155mm and inner diameter 110mm, manufactured from AISI 4130 alloy steel - a medium carbon, low alloy chromoly steel with excellent strength, toughness, and atmospheric corrosion resistance.
Material Specifications
AISI 4130 alloy steel conforms to ASTM A29 standard, featuring 0.28-0.33% Carbon, 0.8-1.1% Chromium, and 0.15-0.25% Molybdenum composition for optimal performance in high-temperature applications up to 315°C (600°F).
Chemical Composition
| Standard | Grade | C | Mn | P | S | Si | Cr | Mo |
|---|---|---|---|---|---|---|---|---|
| ASTM A29 | 4130 | 0.28-0.33 | 0.40-0.60 | 0.035 | 0.040 | 0.15-0.35 | 0.80-1.10 | 0.15-0.25 |
| EN10250/EN10083 | 25CrMo4/1.7218 | 0.22-0.29 | 0.60-0.90 | 0.025 | 0.035 | ≤0.40 | 0.90-1.2 | 0.15-0.30 |
| JIS G4105 | SCM430/SCM2 | 0.28-0.33 | 0.60-0.85 | 0.030 | 0.030 | 0.15-0.35 | 0.90-1.2 | 0.15-0.30 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength, Ultimate | 560 MPa |
| Tensile Strength, Yield | 460 MPa |
| Modulus of Elasticity | 190-210 GPa |
| Elongation at Break (in 50mm) | 21.50% |
| Hardness, Brinell | 217 |
| Thermal Conductivity (100°C) | 42.7 W/mK |
Heat Treatment Capabilities
SAE 4130 steel offers versatile heat treatment options including annealing (750-860°C), normalizing (900°C), hardening (815-870°C), and tempering (398-565°C) to achieve desired mechanical properties for specific applications.
Manufacturing & Processing
Forging temperature range: 950-1230°C (1750-2250°F)
Excellent machinability in annealed condition
Superior weldability with low-hydrogen electrodes
Available in various surface finishes: Black, Rough Machined, Peeled, Turned
Applications
Commercial and military aircraft components
Aerospace engine mounts and structural parts
Automotive and auto racing applications
Oil and gas industry equipment (valve bodies, pumps)
Machine tools and hydraulic systems
Agricultural and defense equipment
Available Sizes
Round Bar: 8mm - 3000mm diameter | Plate/Flat Bar: 10mm - 1500mm thickness | Tube: 4mm - 800mm outer diameter
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Get in Touch
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Company
ZHANGJIAGANG HUA DONG ENERGY TECHNOLOGY CO.,LTD
Location
Rm. 1202, Buildiing A, Wanda Plaza, Zhangjiagang, Jiangsu, China
Contact Person
Yolanda Zou