ASTM A519 Grade 4130 Seamless Pipes
ASTM A519 4130 Seamless Pipes
ASTM A519 Gr 4130 Alloy Steel Seamless Pipe
Working with high-pressure or high-temperature operations requires pipes that can handle stress without failing. That’s exactly why we focus on AISI 4130 / ASTM A519 Gr 4130 Seamless Pipes in Q&T (quenched and tempered) condition here at Kalikund Steel & Engg Co. Over the past 16 years, we’ve helped countless clients find the right piping solutions for demanding environments—whether it’s an offshore drilling platform or a busy petrochemical plant. Thanks to the Q&T process, our 4130 pipes gain enhanced toughness, strength, and the kind of reliability you can count on day after day.
As an AISI 4130 pipes supplier in India, we pride ourselves on keeping a broad selection of high-demand sizes and schedules. In fact, we keep more than 500 Tons of 4130 pipes in ready stock in Mumbai India, including dimensions like 2", 3", 4", 5", 6", and 8" in SCH XXS. These pipes come in 75,000 PSI, 80,000 PSI, or 85,000 PSI yield strengths, so you can pick the spec that suits your project best. Since we maintain such a large inventory, we’re often able to ship quickly and reduce downtime. Beyond just supplying, we’re also a 4130 Seamless pipes stockist in India, which means even bigger quantities are on hand whenever you need them. Many of our customers work in oil & gas, petrochemicals, or power generation, where equipment failures can lead to major expenses. Our Q&T 4130 pipes handle heavy pressures, sudden temperature shifts, and corrosive media with ease, thanks to the quenched and tempered process.
Stronger Mechanical Properties
Quenching and tempering boost tensile strength and improve impact resistance, making these pipes well-suited for harsh conditions.
Easier Weldability & Fabrication
The controlled alloy blend and heat treatment process reduce complications during welding, which is a plus if you need on-site modifications.
Reliable Consistency
All our pipes strictly follow ASTM A519 specifications. We also do UT test (Ultrasonic Testing) on every pipes and Impact test per heat as part of our standard quality checks. If your project needs any other testing, we can arrange that too, ensuring you get pipes that meet your requirements.
Applications Across Industries
Oil & Gas: From wellhead assemblies to offshore platforms, AISI 4130 pipes remain a top pick for critical systems. Petrochemicals: Ideal for high-pressure process piping that demands a strong and durable material.
Power Generation: Frequently used in boilers and turbines, where safety is paramount.
Construction & Infrastructure: Offers reliable support for heavy-load frameworks that need dependable strength over time.
16 Years of Service
We’ve been in this business for 16 years, and during that time, our approach has always been customer-focused. Every project is unique, which is why we take the time to discuss your specific size, schedule, and yield strength needs. By guiding you toward the right product from the start, we aim to spare you from unnecessary delays or budget overruns later on.
Worldwide Shipping
Although we’re based in India, we regularly ship to the Middle East, Singapore, the UK, and beyond. Our export team is well-versed in the logistics of international shipping—from documentation to customs clearance—so your order arrives on time and in good shape. If you have any special shipping instructions or local regulations to meet, just let us know, and we’ll do our best to accommodate them.
Get a Quote Today
If you’re looking for a trusted AISI 4130 pipes supplier in India or a 4130 Seamless pipes stockist in India, Kalikund Steel & Engg Co is here to help. Our extensive inventory of AISI 4130 / ASTM A519 Gr 4130 Seamless Pipes in Q&T condition can meet the toughest requirements—whether you’re dealing with high-pressure flow lines or specialized equipment upgrades.
Reach out to us today for a quote, and let our 16 years of experience give you peace of mind. We look forward to supporting your projects with strong, reliable, and ready-to-ship AISI 4130 pipes.
Dimensions : ASME/ANSI B16.9, ASME B16.28, MSS-SP-43
Size : 1", 2", 3",4", 5', 6", 8" and 3.5" OD, 4" OD, 4.5'' OD, 5.5" OD 3.5" OD x 2.3" ID, 4" OD x 2.5" ID, 4.5" OD x 3" ID, 5" OD x 3" ID, 5.5" OD x 3" ID
Type : Seamless
Thickness :Schedule 80, XS, 120, 160, XXS, higher thickness as per client requirement.
Pressure :7.5K, 10K, 15K, 22.5K and more as per client drawing and requirement.
Delivery Condition : Annealed, Normalized, Stress Relieved, Quenched & Tempered.
Product Specification Level (PSL) : PSL 1, PSL 2, PSL 3.
Supplementary Requirement : NACE MR0175 / MR0103 ISO 3183 / NACE TM0284 YS - MIN 85,000, UTS - 1,10,000 WITHSTANDING 15,000 PRESSURE.
| STANDARD | WERKSTOFF NR. | UNS | TRADE NAME |
| Gr 4130 | 1.7218 | G41300 | 25CrMo4 |
| Grade | Ni | C | Mo | Mn | Si | Fe | Cu | S | P | Cr | ASTM A519 Gr 4130 | 0.50 max | 0.28-0.33 | 0.15-0.25 | 0.40-0.60 | 0.15-0.35 | 97.3-98.22 | - | 0.025 MAX | 0.035 MAX | 0.80-1.10 |
| Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 0.28 | 2580 | 460 MPa | 560 MPa | 20 % |
ASTM A519 Grade 4130 Seamless Pipes
ASTM A519 4130 Seamless Pipes
ASTM A519 Gr 4130 Alloy Steel Seamless Pipe
| Nominal Bore (in) | Outside Diameter (Inches) | Outside Diameter (mm) | Sch 80 | Sch XS | Sch 100 | Sch 120 | Sch 140 | Sch 160 | Sch XXS | |
| 1” | 1.315 | 33.401 | Wall thickness (mm) Weight (kg/m) | 4.55 3.29 |
4.55 3.29 |
- - |
- - |
- - |
6.35 4.30 |
9.70 7.88 |
| 2” | 2.375 | 60.325 | Wall thickness (mm) Weight (kg/m) | 5.54 7.60 |
5.54 7.60 |
- - |
- - |
- - |
8.74 11.29 |
11.07 13.65 |
| 3” | 3.500 | 88.900 | Wall thickness (mm) Weight (kg/m) | 7.62 15.51 |
7.62 15.51 |
- - |
- - |
- - |
11.13 21.67 |
15.24 28.11 |
| 4” | 4.500 | 114.300 | Wall thickness (mm) Weight (kg/m) | 8.56 22.64 |
8.56 22.64 |
- - |
11.13 28.75 |
- - |
13.49 34.05 |
17.12 41.66 |
| 5” | 5.563 | 141.300 | Wall thickness (mm) Weight (kg/m) | 9.53 31.44 |
9.53 31.44 |
- - |
12.70 40.90 |
- - |
15.88 49.94 |
19.05 58.32 |
| 6” | 6.625 | 168.275 | Wall thickness (mm) Weight (kg/m) | 10.97 43.21 |
10.97 43.21 |
- - |
14.27 55.03 |
- - |
18.26 68.53 |
21.92 80.43 |
| Nominal Bore (in) | Outside Diameter (Inches) | Outside Diameter (mm) | Inside Diameter (inches) | Inside Diameter (mm) | Wall thickness (mm) | Weight (kg/m) |
| 4” | 4.5 | 114.3 | 3.0 | 76.2 | 19.05 | 44.39 |
| 5” | 5.5 | 139.7 | 3.0 | 76.2 | 31.75 | 84.52 |
| 5” | 5.75 | 146.05 | 4.0 | 101.6 | 22.23 | 66.07 |
| 6” | 6.75 | 171.45 | 5.0 | 127.0 | 22.23 | 84.53 |
| - | 7.4 | 187.96 | 4.0 | 101.6 | 43.18 | 154.17 |
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