1.4006 QT650 Heat Treated Stainless Steel Bar
Jul 11, 2025
Leave a message
What Is 1.4006 QT650 Stainless Steel?
1.4006 QT650 is a heat-treated version of EN 1.4006 martensitic stainless steel, corresponding to X12Cr13 or AISI 410. In the QT650 condition, the bar is quenched and tempered to achieve a minimum tensile strength of 650 MPa, making it ideal for wear-resistant and moderately corrosive environments.
What is the equivalent material of 1.4006 QT650 Stainless Steel?
| Standard / Country | Equivalent Grade | Condition |
|---|---|---|
| EN (Europe) | 1.4006 | QT650 |
| DIN (Germany) | X12Cr13 | QT650 |
| AISI / ASTM (USA) | 410 | Heat Treated (HRC 22–28) |
| UNS (USA) | S41000 | Quenched & Tempered |
| BS (UK) | 410S21 | Heat Treated |
| AFNOR (France) | Z12C13 | Traité (QT650 equivalent) |
| JIS (Japan) | SUS410 | QT650 |
| GB (China) | 1Cr13 | (QT650) |
| ISO | X12Cr13 | QT650 |
1.4006 stainless steel bar Chemical Composition (EN 10088-3)
| Element | Content (%) |
|---|---|
| C | 0.08 – 0.15 |
| Cr | 11.5 – 13.5 |
| Mn | ≤1.00 |
| Si | ≤1.00 |
| P | ≤0.040 |
| S | ≤0.030 |
1.4006 stainless steel round bar Mechanical Properties in QT650 Condition
| Property | Typical Value | Unit |
|---|---|---|
| Tensile Strength (Rm) | ≥ 650 | MPa |
| Yield Strength (Rp0.2) | ≥ 450 | MPa |
| Elongation (A5) | ≥ 15 | % |
| Hardness (Brinell, HBW) | 200 – 240 | HBW |
| Impact Toughness (ISO V-notch) | ≥ 20 (at room temp, longitudinal) | J |
| Modulus of Elasticity (E) | ~200,000 | MPa |
| Density | ~7.75 | g/cm³ |
| Thermal Conductivity (20°C) | ~25 | W/m·K |
| Coefficient of Expansion (20–100°C) | ~10.2 | x10⁻⁶ /K |
Can 1.4006 QT650 be welded?
It can be welded, but it should be done with caution. Preheating to 200-300°C and tempering after welding are recommended to prevent cracking.
How does 1.4006 stainless steel bar compare to 1.4021 (AISI 420)?
1.4021 has a higher carbon content and is harder, but 1.4006 QT650 offers a better balance between toughness and corrosion resistance.
Can 1.4006 QT650 stainless steel be used directly without additional heat treatment?
Yes, the QT650 state means that the material has been hardened and tempered and is ready for use.
Trusted Supplier of 1.4006 QT650 Stainless Steel Bars-GNEE
At Gnee Steel, we offer precision-rolled and heat-treated 1.4006 QT650 stainless steel round bars, flats, and customized profiles. Our products meet EN 10088-3 and come with full EN 10204 3.1 MTC certification, PMI test reports, and quality assurance.
1.4006 Alloy Round Bars: Diameter from 3mm to 800mm
1.4006 Flat Bars: Thickness from 2mm to 100mm; Width from 10mm to 500mm
1.4006 Hexagonal Bars: Across flats from 2mm to 100mm
1.4006 Wire Rods and Extruded Profiles
We cooperate directly with steel mills to supply 410 stainless steel products that meet or exceed major international standards, including ASTM, ASME, SAE, AMS, ISO, DIN, EN, and BS.
📩 Request a quote now or talk to our technical team to discuss stock size, machining options, or logistics support!
Send Inquiry