SUPPLY SPECIFICATION
What We Supply
Sizes, grades, mills and tolerances for our high alloy steel range.
| Sizes | Grade families | Make / mill | Tolerance | Testing |
|---|---|---|---|---|
|
|
We source from CITIC Pacific Special Steel, ABS and specialist steel mills, and through our forging partners for large sections. | EN 10060 · ASTM A29 · Order class | Mill certificate · Chemistry · Hardness · Mechanical tests · UT as specified |
Processing on High Alloy Steel
OneKaizen cuts high alloy bar to your length and finishes selected grades as bright bar in-house. We inspect chemistry and hardness before it ships.
| Processing route | Typical scope | Output / control |
|---|---|---|
| Cut to length | Round and square stock | Length · end condition |
| Bright bar finishing | Selected grades and sizes | Drawing · peeling · grinding |
| Heat treatment | Solution annealed · aged, grade-specific | Hardness · mechanical properties |
| Inspection | Grade standard | Chemistry · hardness · UT as specified |
How We Supply High Alloy Steel
- 1
Select the Grade
We match grade and condition to your temperature, corrosion and strength requirements.
Sourcing team - 2
Source the Heat
We buy from the mill or forge that makes the grade, with full chemistry and test certificates.
Sourcing team - 3
Cut to Length
Bar is cut to your length with the end condition you need.
In-house - 4
Finish or Heat Treat
Drawing, peeling or grinding, and solution annealing or ageing, where your order needs it.
In-house / partner - 5
Inspect
Chemistry, hardness and dimensions checked against the standard. UT as specified.
Quality team - 6
Pack and Deliver
Bars are protected, tagged with the heat number and shipped to your plant or port.
Supply chain team
Grades We Supply in High Alloy Steel
OneKaizen's main nickel alloys and duplex grades, with their nearest equivalents. Search the catalogue for any other grade.
Quality, Packing and Delivery
Quality
Mill certificates with chemistry and mechanical tests, heat-number traceability, and dimensional inspection on every lot. PMI and UT as specified.
Packing
Bars are bundled or crated, separated from carbon steel to prevent contamination, and tagged with grade, size and heat number.
Delivery
To your plant anywhere in India by road. Export packing and documents for buyers abroad.
Applications
High Alloy Steel Questions
Which high alloy grades do you supply?
Inconel® 625 (Alloy 625 / UNS N06625), Alloy 718, 600, 601, 800, 800H, 825, 400, K-500, C-276, C-22 and Alloy 20, plus Duplex 2205 and Super Duplex 2507.
What sizes of high alloy bar do you supply?
Round bar from Ø 29 to 500 mm and square bar from 40 to 480 mm. Rolled bar goes up to Ø 350 mm and larger sizes come forged.
What is the difference between Inconel® 625 and Alloy 718?
Alloy 625 is solution strengthened and resists seawater and chemical attack. Alloy 718 is age hardened and gives much higher strength up to about 650 °C.
Is Duplex 2205 the same as UNS S32205?
Yes, 2205 is the duplex grade covered by UNS S31803 and S32205. State which designation your specification calls for when you order.
Which alloy should I use for sour oil and gas service?
Alloy 625, Alloy 718 and Alloy 825 are the usual choices, with Super Duplex 2507 for lower-cost chloride service. Tell us the NACE conditions and we match the grade.
Do high alloy steels come with test certificates?
Yes. Every bar ships with a mill certificate showing chemistry and mechanical tests, traceable to the heat number. PMI and UT are available as specified.
Can you supply high alloy steel across India and for export?
Yes. OneKaizen delivers to plants across India and exports to buyers abroad with export packing and documents.
Can you cut or finish high alloy bar?
Yes. OneKaizen cuts bar to length in-house and finishes selected grades as bright bar. Forging and machining go through our partners.
Sizes, grades and tolerances above are our standard range. Other sizes and grades are available on request. Final values are confirmed against the order standard and mill certificate.
