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Stainless Steel 1.4919 CW-HH

Supply condition

EN 1.4919

CW-HH = cold worked, half hard tube/strip

Heavily cold-worked small-diameter tube or strip where strength, not creep life, governs; not used above ~400 °C.

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Values for the CW-HH condition

Other 1.4919 tempers and conditions

1.4919 is listed in 5 conditions; see the grade overview at 1.4919.

Compare all 5 conditionsHide
Condition · open for datasheetBest forYield MPaTensile MPaElong. %HardnessConductivity
AT-CG
High-temperature solution anneal, coarse grain
Anneal at the upper end (≈1100–1150 °C) to coarsen grain (ASTM 2–5) for maximum creep-rupture strength in long-term 550–650 °C steam service.24055045150 HB2.3 % IACS
HF+AT
Hot finished (rolled/forged) and solution annealed
Hot-finished plate, seamless tube and forgings in the annealed, pickled condition — the usual pressure-part supply form.26557545165 HB2.3 % IACS
ATDefault
Solution annealed
Standard supply condition for tube, plate and forgings — maximum corrosion resistance and ductility, basis of EN creep-rupture data.27058048160 HB2.3 % IACS
CD
Cold drawn
Cold-drawn bar or tube for higher yield strength and better surface/tolerance, e.g. high-temperature bolting blanks per EN 10269.4807002519 HRC2.3 % IACS
CW-HHThis page
Cold worked, half hard tube/strip
Heavily cold-worked small-diameter tube or strip where strength, not creep life, governs; not used above ~400 °C.6208501526 HRC2.2 % IACS

What is 1.4919 CW-HH?

1.4919 CW-HH is 1.4919 supplied in the CW-HH condition — heavily cold-worked small-diameter tube or strip where strength, not creep life, governs; not used above ~400 °C. 1.4919 CW-HH has a yield strength of 620 MPa (89.9 ksi) and a tensile strength of 850 MPa (123 ksi) — stronger than 88% of stainless steel grades. Elongation at break is 15% and the elastic modulus is 200 GPa (29 Msi). 1.4919 CW-HH has a density of 7.98 g/cm³ (0.288 lb/in³), heavier than 85% of stainless steel grades. It melts at 1,390°C (2,534 °F). AT is the default condition FabDigit quotes; CW-HH is available on request or by drawing note.

Advantages

  • High strength — 620 MPa (89.9 ksi), better than 88% of stainless steel grades

Limitations

  • Limited ductility — 15%, worse than 89% of stainless steel grades
  • Limited service temperature — 400°C (752 °F), worse than 78% of stainless steel grades

1.4919 CW-HH properties

Typical room-temperature values for 1.4919 CW-HH; 24 are specific to this condition. Other listed values are 1.4919 reference data and may not represent this condition. Bars are the position among stainless steel grades.

Physical3

1.4919 CW-HH has a density of 7.98 g/cm³ (0.288 lb/in³), heavier than 85% of stainless steel grades. It melts at 1,390°C (2,534 °F).

Density7.98 g/cm³0.29 lb/in³
Melting Point (Solidus)1,390°C2,534 °F
Liquidus Temperature1,440°C2,624 °F

Mechanical16

1.4919 CW-HH has a yield strength of 620 MPa (89.9 ksi) and a tensile strength of 850 MPa (123 ksi) — stronger than 88% of stainless steel grades. Elongation at break is 15% and the elastic modulus is 200 GPa (29 Msi).

Elastic (Young's) Modulus200 GPa29 Msi
Shear Modulus77 GPa11.2 Msi
Bulk Modulus166 GPa24.1 Msi
Poisson's Ratio0.3
Tensile Strength (Ultimate)850 MPa123 ksi
Yield Strength (0.2% offset)620 MPa89.9 ksi
Elongation at Break15%
Reduction in Area40%
Compressive Strength620 MPa89.9 ksi
Shear Strength550 MPa79.8 ksi
Fatigue Strength (Endurance Limit)360 MPa52.2 ksi
Fracture Toughness (K_IC)120 MPa·√m109 ksi·√in
Charpy V-Notch Impact (RT)60 J44.3 ft·lbf
Hardness, Brinell260 HB
Hardness, Rockwell B100 HRB
Hardness, Vickers272 HV

Thermal6

1.4919 CW-HH is rated for continuous service to 400°C (752 °F). It conducts heat at 15 W/m·K (8.67 BTU/hr·ft·°F), worse than 59% of stainless steel grades. Thermal expansion is 16 µm/m·K (8.89 µin/in·°F).

Thermal Conductivity15 W/m·K8.7 BTU/hr·ft·°F
Specific Heat Capacity500 J/kg·K0.12 BTU/lb·°F
Thermal Expansion (CTE, 20–100 °C)16 µm/m·K8.9 µin/in·°F
Latent Heat of Fusion270 J/g116 BTU/lb
Max Service Temperature (continuous)400°C752 °F
Min Service Temperature-196°C-321 °F

Electrical3

1.4919 CW-HH conducts electricity at 2.2 % IACS, worse than 61% of stainless steel grades.

Electrical Conductivity2.2 % IACS
Electrical Resistivity7.6×10⁻⁷ Ω·m29.9 µΩ·in
Magnetic Responseweakly magnetic

Chemical & Environmental3

Corrosion resistance is good (66/100), better than 59% of stainless steel grades.

Galvanic Potential (seawater, vs SCE)-0.05 V
Corrosion ResistanceGood66/100
Chemical Resistance SummaryGood resistance to sulphuric/phosphoric acids, organic acids and high-temperature steam; Mo gives moderate pitting/crevice resistance in chloride water, but the grade is still prone to chloride SCC above ~60 °C and is not for hot halide acids.

Sustainability4

Producing a kilogram of 1.4919 CW-HH takes about 53 MJ of energy and emits 5 kg of CO₂ — less than 67% of stainless steel grades. Typical recycled content is 60%.

Embodied Energy (primary production)53 MJ/kg22,786 BTU/lb
Embodied Carbon (primary production)5 kg CO₂/kg
Embodied Water250 L/kg30 gal/lb
Typical Recycled Content60%

Manufacturability7

1.4919 CW-HH's machinability is fair (44/100, better than 81% of stainless steel grades); weldability good (62/100); formability poor (30/100).

MachinabilityFair44/100
Machinability Rating (AISI 1212 = 100 %)40%
WeldabilityGood62/100
Formability (cold)Poor30/100
Brazeability / SolderabilityGood60/100
PolishabilityVery good78/100
Anodizing Responsen/a — stainless steel is not anodised; electropolishing or pickling/passivation is used instead

Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.

Working with 1.4919 CW-HH

Is 1.4919 easy to machine?

Machines like 316 — gummy, work-hardening chip; use rigid setups, positive-rake coated carbide, 40–120 m/min, heavy feed and copious coolant to avoid glazing.

Can 1.4919 be welded?

Weldable by TIG/MIG/SAW with 316L/16-8-2 filler and low heat input; boron increases hot-cracking risk, so keep interpass < 150 °C, minimise restraint and control ferrite in the weld metal.

Can 1.4919 be formed, bent or molded?

Excellent cold formability with high work-hardening — allow extra springback and interstage anneal at 1050–1100 °C; hot work at 1150–1200 °C, finish above 900 °C, then solution anneal and quench.

What surface finishes work on 1.4919?

Pickle and passivate (HNO3/HF) after hot work or welding; electropolishing gives the best surface for steam/nuclear cleanliness. Anodising is not applicable.

1.4919 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.

ElementSpec limit (wt %)Nominal
C0.04 – 0.080.06
Si≤ 0.750.4
Mn≤ 21.5
P≤ 0.04—
S≤ 0.02—
Cr16 – 1817
Ni12 – 1413
Mo2 – 2.52.25
Bboron addition for grain-boundary strengthening / creep rupture life0 – 0.010
N≤ 0.110.05
Febalance—

1.4919 CW-HH — frequently asked

What is 1.4919 CW-HH used for?

1.4919 CW-HH is typically used for nuclear reactor internals, spent fuel storage baskets, neutron shielding components and chemical process equipment. In short: boron-modified 316 variant; neutron absorption with Mo corrosion resistance; nuclear specialty stock.

What is the yield strength of 1.4919 CW-HH?

1.4919 CW-HH has a typical yield strength of 620 MPa (89.9 ksi) and a tensile strength of 850 MPa (123 ksi) — stronger than 88% of stainless steel grades. Strength varies by condition: see the 5 listed tempers.

Is 1.4919 CW-HH easy to machine?

Not especially — machinability is rated fair (44/100, better than 81% of stainless steel grades). Machines like 316 — gummy, work-hardening chip; use rigid setups, positive-rake coated carbide, 40–120 m/min, heavy feed and copious coolant to avoid glazing.

Can 1.4919 CW-HH be welded?

Yes — weldability is rated good (62/100). Weldable by TIG/MIG/SAW with 316L/16-8-2 filler and low heat input; boron increases hot-cracking risk, so keep interpass < 150 °C, minimise restraint and control ferrite in the weld metal.

What surface finishes work on 1.4919 CW-HH?

Pickle and passivate (HNO3/HF) after hot work or welding; electropolishing gives the best surface for steam/nuclear cleanliness. Anodising is not applicable.

Can 1.4919 CW-HH be formed, bent or molded?

Excellent cold formability with high work-hardening — allow extra springback and interstage anneal at 1050–1100 °C; hot work at 1150–1200 °C, finish above 900 °C, then solution anneal and quench.

What is the maximum service temperature of 1.4919 CW-HH?

1.4919 CW-HH 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.

What is the difference between 1.4919-AT and 1.4919 CW-HH?

AT is the default condition — standard supply condition for tube, plate and forgings — maximum corrosion resistance and ductility, basis of EN creep-rupture data. CW-HH: heavily cold-worked small-diameter tube or strip where strength, not creep life, governs; not used above ~400 °C. Yield strength is 270 MPa in AT versus 620 MPa in CW-HH.

Sources

  1. EN 10216-5 Seamless steel tubes for pressure purposes — stainless steel tubes — CEN (2021)
  2. EN 10222-5 Steel forgings for pressure purposes — martensitic, austenitic and austenitic-ferritic stainless steels — CEN (2017)
  3. EN 10269 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties — CEN (2013)
  4. EN 10302 Creep resisting steels, nickel and cobalt alloys — CEN (2008)
  5. ASM Handbook Vol.1 — Properties and Selection: Irons, Steels and High-Performance Alloys — ASM International (1990)
  6. ASM Handbook Vol.13B — Corrosion: Materials — ASM International (2005)

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.