P235GH is a European specified steel for use in pressure vessels, boilers and heat exchangers.
The composition of this steel makes it ideal for applications where elevated working temperatures are the norm and the material is used by fabricators throughout the oil, gas and petrochemical industry.
P235GH is a normalized carbon alloy steel and is available ex-stock from our warehouse with mill certification and stamping. This EN10028 steel grade supersedes the older BS and DIN standards (Grades BS 1501-161-360A and DIN H 1, respectively).
Seamless steel tubes for pressure purposes – Technical delivery conditions – Part 2: Non alloy and alloy steel tubes with specified elevated temperature properties; German version EN 10216-2:2002+A2:2007
The main products of steel / steel grade:
EN10206-2 P235GH,195GH, P235GH, P265GH, 20MnNb6, 16Mo3, Boiler tube
Table 1: Chemical Composition of EN 10028 P235GH
| Element | % by mass | Element | % by mass |
| Carbon (C) | ≤0.16 | Silicon (Si) | ≤0.35 |
| Manganese (Mn) | 0.60 to 1.20 | Phosphorous (P) (max) | 0.025 |
| Sulphur (S) (max) | 0.015 | Aluminium (Al) | ≤0.020 |
| Nitrogen (N) | ≤0.012 | Chromium (Cr) | ≤0.30 |
| Copper (Cu) | ≤0.30 | Molybdenum (Mo) | ≤0.08 |
| Niobium (Nb) | ≤0.020 | Nickel (Ni) | ≤0.30 |
| Titanium (Ti) (max) | 0.03 | Vanadium (Vi) | ≤0.02 |
The combined quantities of Chromium, Copper and Molybdenum should not exceed 0.70%
Table 2: Mechanical Properties of EN 10028 P235GH
| Grade | Type | Thickness (mm) |
Yield Strength MPa (min) |
Tensile Strength MPa |
Elongation % (min) |
Impact Energy (KV J) (min) |
||
| -20° | 0° | +20° | ||||||
| P235GH | Normalized | ≤ 16 16> to ≤40 40> to ≤60 60> to ≤100 100> to ≤150 150> to ≤250 |
235 225 215 200 185 170 |
360 to 480 360 to 480 360 to 480 360 to 480 350 to 480 350 to 480 |
24 24 24 24 24 24 |
27 27 27 27 27 27 |
34 34 34 34 34 34 |
40 40 40 40 40 40 |
Chemical composition of EN10216-2 P235GH boiler tube:
| Grade | Composition | ||||
| Si | Mn | P<= | S<= | Cr<= | Mo |
| 195GH | <=0.13 | <=0.35 | <=0.70 | 0.025 | 0.020 |
| P235GH | <=0.16 | <=0.35 | <=1.20 | 0.025 | 0.020 |
| P265GH | <=0.20 | <=0.40 | <=1.40 | 0.025 | 0.020 |
| 20MnNb6 | <=0.22 | 0.15-0.35 | 1.00-1.50 | 0.025 | 0.020 |
| 16Mo3 | 0.12~0.20 | <=0.35 | 0.40-0.90 | 0.025 | 0.020 |
Mechanical properties of EN10216-2 P235GH boiler tube
| Grade | Tensile Strength(MPa) | Yield Strength(MPa) | Elongation(L) | Elongation(t) |
| 195GH | 320-440 | >=195 | >=27 | >=25 |
| P235GH | 360-500 | >=235 | >=25 | >=2 |
| P265GH | 410-570 | >=265 | >=23 | >=21 |
| 20MnNb6 | 500-650 | >=355 | >=22 | >=20 |
| 16Mo3 | 450-600 | >=280 | >=22 | >=20 |
