Steel P195GH +N (Normalized)
Heat-treated state · default condition
EN P195GH
Standard delivery condition for EN 10216-2/10217-2 P195GH boiler tube and pressure plate; fine ferrite-pearlite, best toughness/weld response.
Values for the +N condition
Other P195GH tempers and conditions
P195GH is listed in 5 conditions; see the grade overview at P195GH.
Compare all 5 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
Annealed | Softest condition, chosen when maximum cold expansion, bending or tube-to-tubesheet rolling is required. | 205 | 350 | 34 | 100 HB | 10.8 % IACS |
+NDefaultThis page Normalized | Standard delivery condition for EN 10216-2/10217-2 P195GH boiler tube and pressure plate; fine ferrite-pearlite, best toughness/weld response. | 230 | 380 | 30 | 110 HB | — |
Hot rolled | Hot-finished tube or plate accepted as-rolled where the code allows; slightly coarser structure and more property scatter than +N. | 235 | 390 | 28 | 115 HB | 10.5 % IACS |
Cold drawn, lightly cold-worked after final heat treatment | Precision cold-drawn tube with a light finishing pass after normalizing — good dimensional accuracy while retaining bendability. | 270 | 400 | 22 | 125 HB | 10.3 % IACS |
Cold drawn | Cold-drawn precision tube used where tight tolerance and higher strength matter more than ductility; not normally code-accepted for pressure service without +N. | 370 | 460 | 12 | 150 HB | 10.2 % IACS |
What is P195GH +N?
P195GH +N is P195GH heat treated to +N — standard delivery condition for EN 10216-2/10217-2 P195GH boiler tube and pressure plate; fine ferrite-pearlite, best toughness/weld response. P195GH +N has a yield strength of 230 MPa (33.4 ksi) and a tensile strength of 380 MPa (55.1 ksi) — weaker than 97% of steel grades. Elongation at break is 30% and the elastic modulus is 212 GPa (30.7 Msi). P195GH +N has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,470°C (2,678 °F).
Advantages
- Conducts heat well — 52 W/m·K (30 BTU/hr·ft·°F), better than 98% of steel grades
- Forms and bends easily — 90/100, better than 98% of steel grades
- Readily welded — 95/100, better than 97% of steel grades
- Ductile — tolerates forming and impact — 30%, better than 93% of steel grades
- High electrical conductivity — 10.5 % IACS, better than 89% of steel grades
Limitations
- Low strength — 230 MPa (33.4 ksi), worse than 97% of steel grades
- Hard to polish — 45/100, worse than 84% of steel grades
P195GH +N properties
Typical room-temperature values for P195GH +N; 11 are specific to this condition. Other listed values are P195GH reference data and may not represent this condition. Bars are the position among steel grades.
Physical3
P195GH +N has a density of 7.85 g/cm³ (0.284 lb/in³), heavier than 56% of steel grades. It melts at 1,470°C (2,678 °F).
Mechanical16
P195GH +N has a yield strength of 230 MPa (33.4 ksi) and a tensile strength of 380 MPa (55.1 ksi) — weaker than 97% of steel grades. Elongation at break is 30% and the elastic modulus is 212 GPa (30.7 Msi).
Thermal6
P195GH +N is rated for continuous service to 400°C (752 °F). It conducts heat at 52 W/m·K (30 BTU/hr·ft·°F), better than 98% of steel grades. Thermal expansion is 12 µm/m·K (6.67 µin/in·°F).
Electrical3
P195GH +N conducts electricity at 10.5 % IACS, better than 89% of steel grades.
Chemical & Environmental3
Corrosion resistance is not recommended (10/100), worse than 86% of steel grades.
Sustainability4
Producing a kilogram of P195GH +N takes about 25 MJ of energy and emits 2 kg of CO₂ — less than 82% of steel grades. Typical recycled content is 25%.
Manufacturability6
P195GH +N's machinability is good (58/100, better than 75% of steel grades); weldability excellent (95/100); formability excellent (90/100).
Common Calculations5
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with P195GH +N
Is P195GH easy to machine?
Soft and gummy — use sharp positive-rake tools, high speed with generous coolant and chip breakers to avoid built-up edge; consider a free-cutting grade if heavy turning volume is expected.
Can P195GH be welded?
Excellent weldability by TIG/MMA/SAW with matching low-C consumables (ER70S-2/E7018); CEV ≈0.30 means no preheat for thin walls, PWHT only per pressure code thickness rules.
Can P195GH be formed, bent or molded?
Very good cold bending, expanding and flanging; tube bend radii down to ~2.5 D are routine, and heavy cold work should be followed by normalizing for code service.
What surface finishes work on P195GH?
No corrosion resistance of its own — pickle/passivate then paint, galvanize or aluminize; internal surfaces rely on boiler water chemistry rather than a coating.
P195GH chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Ccast analysis | ≤ 0.13 | 0.1 |
| Si | ≤ 0.35 | 0.2 |
| Mn | 0.4 – 0.8 | 0.6 |
| P | ≤ 0.03 | 0.02 |
| S | ≤ 0.02 | 0.01 |
| Altotal Al, killed steel | ≥ 0.02 | 0.03 |
| CrCr+Cu+Mo+Ni ≤ 0.70 total | ≤ 0.3 | 0.05 |
| Cu | ≤ 0.3 | 0.05 |
| Mo | ≤ 0.08 | 0.01 |
| Ni | ≤ 0.3 | 0.05 |
| Nb | ≤ 0.01 | 0.01 |
| Ti | ≤ 0.04 | 0.01 |
| V | ≤ 0.02 | 0.01 |
| Fe | balance | — |
P195GH +N — frequently asked
What is P195GH +N used for?
P195GH +N is typically used for boiler drums, pressure vessel shells, steam piping flanges and storage tanks. In short: most weldable boiler grade; good cold formability; lower strength than P245GH.
What is the yield strength of P195GH +N?
P195GH +N has a typical yield strength of 230 MPa (33.4 ksi) and a tensile strength of 380 MPa (55.1 ksi) — weaker than 97% of steel grades. Strength varies by condition: see the 5 listed tempers.
Is P195GH +N easy to machine?
Reasonably — machinability is rated good (58/100, better than 75% of steel grades). Soft and gummy — use sharp positive-rake tools, high speed with generous coolant and chip breakers to avoid built-up edge; consider a free-cutting grade if heavy turning volume is expected.
Can P195GH +N be welded?
Yes — weldability is rated excellent (95/100). Excellent weldability by TIG/MMA/SAW with matching low-C consumables (ER70S-2/E7018); CEV ≈0.30 means no preheat for thin walls, PWHT only per pressure code thickness rules.
What surface finishes work on P195GH +N?
No corrosion resistance of its own — pickle/passivate then paint, galvanize or aluminize; internal surfaces rely on boiler water chemistry rather than a coating.
Can P195GH +N be formed, bent or molded?
Very good cold bending, expanding and flanging; tube bend radii down to ~2.5 D are routine, and heavy cold work should be followed by normalizing for code service.
What is the maximum service temperature of P195GH +N?
P195GH +N is rated for continuous use to about 400°C (752 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Sources
- EN 10216-2 Seamless steel tubes for pressure purposes — non-alloy and alloy steel tubes with specified elevated temperature properties — CEN (2020)
- EN 10217-2 Welded steel tubes for pressure purposes — CEN (2019)
- EN 10027-2 Numerical designation system (1.0348) — CEN (2015)
- ASTM A515/A515M Pressure Vessel Plates, Carbon Steel, for Intermediate- and Higher-Temperature Service — ASTM (2020)
- ASM Handbook Vol.1 — Properties and Selection: Irons, Steels, and High-Performance Alloys — ASM International (1990)
- Machinery's Handbook, 31st ed. — Industrial Press (2020)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.