Key Details
ISO 9001:2015 Quality standards
Strict mechanical and testing logs are validated for each forging batch before dispatch.
Short production lead times
Typically dispatched in 7–14 days with standard EN 10204 3.1 Mill Test Reports.
Alloy Steel Pipe Grades Explained
Intro: Alloy steel pipes for high-temp/high-pressure service — chrome-moly grades.
Grade table: P5 (5Cr-0.5Mo), P9 (9Cr-1Mo), P11 (1.25Cr-0.5Mo), P22 (2.25Cr-1Mo), P91 (9Cr-1Mo-V), P92 (9Cr-1.8W-Mo-V). For each: composition, max service temp, typical application.
Standard: ASTM A335 (seamless), A691 (welded), A213 (tubes).
Dimensions: OD range 1/2" to 36", SCH 10 to XXS.
Mechanical properties table: YS/UTS/elongation per ASTM.
Heat treatment: normalize + temper (P11/P22); normalized + tempered (P91 — strict 730–780°C PWHT required).
IBR approval requirements.
PWHT requirement note for P91 (CRITICAL: 730–780°C, 1 hr/25mm).
Applications: supercritical boilers, hydrotreaters, reformers, ethylene crackers.
CTA.
ASTM A335 Standard
| Property | Detail |
|---|---|
| Standard Specifications | ASTM A335, ASME SA335 (Seamless); ASTM A691 (Welded) |
| Grades | P5, P9, P11, P22, P91, P92 (Chrome-Moly Alloy) |
| Size Range | 1/2" to 36" Nominal Pipe Size (Seamless) |
| Schedules / Wall Thickness | SCH 10, 20, 40, 80, 160, XXS |
| Compliance | IBR (Indian Boiler Regulations) certified Form III-A / III-B |
Why Choose Remax Forge?
Remax Forge & Fittings stands out as a leading flange manufacturer due to our complete in-house forging, heat treatment, and precision CNC machining capabilities based in Mumbai. We provide certified compliance, factory-direct wholesale pricing, and custom forging schedules tailored to your engineering blueprints. With over 20 years of manufacturing experience, zero-defect quality management, and short lead times, we are a trusted supply partner for critical industrial piping projects.
ISO 9001:2015 Certified
Fully audited quality management workflows.
In-House Forging
Forging, heat-treat, machining in Mumbai.
Testing Laboratory
PMI, Spectro, UT, Hydro labs on-site.
Mill Certificates
EN 10204 3.1 standard; 3.2 available.
20+ Years Experience
Serving critical gas/oil clients globally.
45+ Export Countries
Proven global logistics and documentation.
Custom Forging
Special shapes, alloys and schedules.
Factory-Direct Price
Competitive pricing with no agent markup.
Technical Support
Engineers ready to assist spec selection.
Short Lead Times
Fast turnaround of custom and stock orders.
How to Order
Ordering high-quality forged flanges from Remax is straightforward. To ensure our engineering team provides you with a precise and competitive quote, please specify the exact flange type, nominal pipe size (NPS), pressure class rating, material grade, and facing configuration. Let us know your total quantity requirements and if you require any specialized testing or custom coatings. Contact us via email or phone for a quick, same-day response.
Direct Inquiries
Estimated Lead Times
Frequently Asked Questions
Browse answers to common piping and forged components questions. Contact our technical team for custom configurations.
Drop your details below
Let our experts take over from here!