Steel P195GH
EN P195GH
P195GH (1.0348, also cross-referenced to 20R and A515 Gr.55) is a low-carbon non-alloy pressure vessel and boiler steel for plate and tube in moderate-temperature service, supplied +N, +AR, +A, +C, +LC and as normalized plate.
Reference datasheet — P195GH is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the +N condition
P195GH tempers and conditions
P195GH is supplied in 5 conditions, soft to hard. +N is the default FabDigit quotes; the values on this page are for it.
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 |
+NDefault 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 |
Supply forms, finishes and certifications
Ways P195GH is supplied — form, process route, surface or paperwork — without a datasheet of their own. The property values above apply.
| Option | What it is | Type |
|---|---|---|
Plate +N | Plate, normalized | Supply form |
What is P195GH?
P195GH (1.0348, also cross-referenced to 20R and A515 Gr.55) is a low-carbon non-alloy pressure vessel and boiler steel for plate and tube in moderate-temperature service, supplied +N, +AR, +A, +C, +LC and as normalized plate. Engineers use it where weldability and formability matter more than strength: 230 MPa yield, 380 MPa tensile, 30 % elongation, 110 HB and service to 400 °C. It has no corrosion resistance of its own and machines gummily; step up to P245GH when a higher code allowable stress is required. P195GH 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). P195GH 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).
What is P195GH used for?
- boiler drums
- pressure vessel shells
- steam piping flanges
- storage tanks
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 properties
Typical room-temperature values for P195GH-+N; bars are the position among steel grades.
Physical3
P195GH 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 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 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 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 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'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. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the steel family
Yield strength against density for every steel grade FabDigit runs. P195GH is highlighted; hover a dot for its name, or open the interactive family chart.
Working with P195GH
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.
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 |
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.
Surface treatments FabDigit runs on steel parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Organic Coating
Black / Phosphate
Thermal Spray
Equivalent designations
Standards and trade names that resolve to Steel P195GH in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- 1.0348
- Similar grades
- 20RA515 Gr.55
How much does P195GH cost?
P195GH is a budget-cost steel ($), cheaper than about 90% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
P195GH — frequently asked
What is P195GH used for?
P195GH is typically used for boiler drums, pressure vessel shells, steam piping flanges and storage tanks. In short: most weldable boiler grade; good cold formability; lower strength than P245GH.
What is the yield strength of P195GH?
P195GH has a typical yield strength of 230 MPa (33.4 ksi) and a tensile strength of 380 MPa (55.1 ksi) — weaker than 97% of steel grades. Strength varies by condition: see the 5 listed tempers.
Is P195GH easy to machine?
Reasonably — machinability is rated good (58/100, better than 75% of steel grades). Soft and gummy — use sharp positive-rake tools, high speed with generous coolant and chip breakers to avoid built-up edge; consider a free-cutting grade if heavy turning volume is expected.
Can P195GH be welded?
Yes — weldability is rated excellent (95/100). Excellent weldability by TIG/MMA/SAW with matching low-C consumables (ER70S-2/E7018); CEV ≈0.30 means no preheat for thin walls, PWHT only per pressure code thickness rules.
What surface finishes work on P195GH?
No corrosion resistance of its own — pickle/passivate then paint, galvanize or aluminize; internal surfaces rely on boiler water chemistry rather than a coating.
Can P195GH be formed, bent or molded?
Very good cold bending, expanding and flanging; tube bend radii down to ~2.5 D are routine, and heavy cold work should be followed by normalizing for code service.
What is the maximum service temperature of P195GH?
P195GH is rated for continuous use to about 400°C (752 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
How much does P195GH cost?
P195GH is a budget-cost steel ($), cheaper than about 90% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
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; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.