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EN 1.0402 (C22) Non-Alloy Steel
EN 1.0402 steel is a carbon (non-alloy) steel formulated for primary forming into wrought products. Cited properties are appropriate for the normalized condition. 1.0402 is the EN numeric designation for this material. C22 is the EN chemical designation.
It has a moderately low tensile strength among the wrought carbon or non-alloy steels in the database.
The graph bars on the material properties cards below compare EN 1.0402 steel to: wrought carbon or non-alloy steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Hastelloy C22, also known as alloy C22, is a versatile austenitic nickel-chromium-molybdenum-tungsten alloy with enhanced resistance to pitting, crevice corrosion and stress corrosion cracking. The high chromium content provides good resistance to oxidizing media while the molybdenum and tungsten content give good resistance to reducing media. This nickel steel alloy also has excellent resistance to oxidizing aqueous media including wet chlorine and mixtures containing nitric acid or oxidizing acids with chlorine ions. Other corrosives Hastelloy C-22 has resistance to are oxidizing acid chlorides, wet chlorine, formic and acetic acids, ferric and cupric chlorides, sea water, brine and many mixed or contaminated chemical solutions, both organic and inorganic.
Chemical Composition, %
C | Cr | Co | Fe | Mn | Mo | Ni | P | Si | S | W | V |
.010 max | 20-22.5 | 2.5 max | 2.0-6.0 | .50 max | 12.5-14.5 | Balance | .02 max | .08 max | .02 max | 2.5-3.5 | .35 max |
Fabrication of Hastelloy C-22
Although ductile enough to be formed by cold working, intermediate annealing may be necessary due to work hardening. Forging should be performed between 1750-2050° F followed by rapid cooling. Annealing can be performed at a temperature range between 2020-2150° F followed by a rapid quench. Cooling at an accelerated rate avoids the formation of detrimental phases which form between 1400-1800° F. Welding can be done by gas tungsten-arc, gas metal-arc and shielded metal-arc processes.
ASTM Specifications
Pipe Smls | Pipe Welded | Tube Smls | Tube Welded | Sheet / Plate | Bar | Forging | Fitting |
B622 | B619 | B622 | B626 | B575 | B574 | B564 | B366 |
Mechanical Properties
Typical Room Temperature Tensile Properties of Annealed Material
Product Form | Tensile (ksi) | .2% Yield (ksi) | Elongation % | Hardness (HRb) |
Plate (.25”-1.75”) | 112 | 53 | 62 | 89 |
Sheet (.038”-.15”) | 122 | 63 | 54 | 93 |
Bar (.50”-5.50”) | 115 | 55 | 60 | 89 |
Equivalent grades of steel C22 (1.0402)
Warning! Only for reference
EU | USA | Germany | Japan | England | Italy | China | Sweden | Poland | Czechia | Russia | Inter |
C22 | SAE1020
| 1.0402C22
| S20CS22C
| 070M20
| C21
| 20
| 1450
| 20
| 12024
| 20
| C25 |
EN 1.0402 (C22) Non-Alloy Steel
EN 1.0402 steel is a carbon (non-alloy) steel formulated for primary forming into wrought products. Cited properties are appropriate for the normalized condition. 1.0402 is the EN numeric designation for this material. C22 is the EN chemical designation.
It has a moderately low tensile strength among the wrought carbon or non-alloy steels in the database.
The graph bars on the material properties cards below compare EN 1.0402 steel to: wrought carbon or non-alloy steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Hastelloy C22, also known as alloy C22, is a versatile austenitic nickel-chromium-molybdenum-tungsten alloy with enhanced resistance to pitting, crevice corrosion and stress corrosion cracking. The high chromium content provides good resistance to oxidizing media while the molybdenum and tungsten content give good resistance to reducing media. This nickel steel alloy also has excellent resistance to oxidizing aqueous media including wet chlorine and mixtures containing nitric acid or oxidizing acids with chlorine ions. Other corrosives Hastelloy C-22 has resistance to are oxidizing acid chlorides, wet chlorine, formic and acetic acids, ferric and cupric chlorides, sea water, brine and many mixed or contaminated chemical solutions, both organic and inorganic.
Chemical Composition, %
C | Cr | Co | Fe | Mn | Mo | Ni | P | Si | S | W | V |
.010 max | 20-22.5 | 2.5 max | 2.0-6.0 | .50 max | 12.5-14.5 | Balance | .02 max | .08 max | .02 max | 2.5-3.5 | .35 max |
Fabrication of Hastelloy C-22
Although ductile enough to be formed by cold working, intermediate annealing may be necessary due to work hardening. Forging should be performed between 1750-2050° F followed by rapid cooling. Annealing can be performed at a temperature range between 2020-2150° F followed by a rapid quench. Cooling at an accelerated rate avoids the formation of detrimental phases which form between 1400-1800° F. Welding can be done by gas tungsten-arc, gas metal-arc and shielded metal-arc processes.
ASTM Specifications
Pipe Smls | Pipe Welded | Tube Smls | Tube Welded | Sheet / Plate | Bar | Forging | Fitting |
B622 | B619 | B622 | B626 | B575 | B574 | B564 | B366 |
Mechanical Properties
Typical Room Temperature Tensile Properties of Annealed Material
Product Form | Tensile (ksi) | .2% Yield (ksi) | Elongation % | Hardness (HRb) |
Plate (.25”-1.75”) | 112 | 53 | 62 | 89 |
Sheet (.038”-.15”) | 122 | 63 | 54 | 93 |
Bar (.50”-5.50”) | 115 | 55 | 60 | 89 |
Equivalent grades of steel C22 (1.0402)
Warning! Only for reference
EU | USA | Germany | Japan | England | Italy | China | Sweden | Poland | Czechia | Russia | Inter |
C22 | SAE1020
| 1.0402C22
| S20CS22C
| 070M20
| C21
| 20
| 1450
| 20
| 12024
| 20
| C25 |
