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321/321L stainless steel 9.52*1.65 mm coiled tubing

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Composition

Typical compositional ranges for grade 321 stainless sheets of steel are given in table 1.

Table 1. Composition ranges for 321-grade stainless steel

Grade   C Mn Si P S Cr Mo Ni N Other
321 min.
max
-
0.08
2.00 0.75 0.045 0.030 17.0
19.0
- 9.0
12.0
0.10 Ti=5(C+N)
0.70
321H min.
max
0.04
0.10
2.00 0.75 0.045 0.030 17.0
19.0
- 9.0
12.0
- Ti=4(C+N)
0.70
347 min.
max
0.08 2.00 0.75 0.045 0.030 17.0
19.0
- 9.0
13.0
- Nb=10(C+N)
1.0

 321/321L stainless steel 9.52*1.65 mm coiled tubing

Mechanical Properties

Typical mechanical properties for grade 321 stainless sheets of steel are given in table 2.

Table 2. Mechanical properties of 321-grade stainless steel

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50 mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
321 515 205 40 95 217
321H 515 205 40 95 217
347 515 205 40 92 201

 

Physical Properties

321/321L stainless steel 9.52*1.65 mm coiled tubing

Typical physical properties for annealed grade 321 stainless sheets of steel are given in table 3.

Table 3. Physical properties of 321-grade stainless steel in the annealed condition

Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (μm/m/°C) Thermal Conductivity (W/m.K) Specific Heat 0-100 °C (J/kg.K) Electrical Resistivity (nΩ.m)
0-100 °C 0-315 °C 0-538 °C at 100 °C at 500 °C
321 8027 193 16.6 17.2 18.6 16.1 22.2 500 720

 

Grade Specification Comparison

321/321L stainless steel 9.52*1.65 mm coiled tubing

Approximate grade comparisons for 321 stainless sheets of steel are given in table 4.

Table 4. Grade specifications for 321-grade stainless steel

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
321 S32100 321S31 58B, 58C 1.4541 X6CrNiTi18-10 2337 SUS 321
321H S32109 321S51 - 1.4878 X10CrNiTi18-10 - SUS 321H
347 S34700 347S31 58G 1.4550 X6CrNiNb18-10 2338 SUS 347

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Composition

Typical compositional ranges for grade 321 stainless sheets of steel are given in table 1.

Table 1. Composition ranges for 321-grade stainless steel

Grade C Mn Si P S Cr Mo Ni N Other
321 min.
max
-
0.08
2.00 0.75 0.045 0.030 17.0
19.0
- 9.0
12.0
0.10 Ti=5(C+N)
0.70
321H min.
max
0.04
0.10
2.00 0.75 0.045 0.030 17.0
19.0
- 9.0
12.0
- Ti=4(C+N)
0.70
347 min.
max
0.08 2.00 0.75 0.045 0.030 17.0
19.0
- 9.0
13.0
- Nb=10(C+N)
1.0

321/321L stainless steel 9.52*1.65 mm coiled tubing

Mechanical Properties

Typical mechanical properties for grade 321 stainless sheets of steel are given in table 2.

Table 2. Mechanical properties of 321-grade stainless steel

Grade Tensile Strength (MPa) min Yield Strength 0.2% Proof (MPa) min Elongation (% in 50 mm) min Hardness
Rockwell B (HR B) max Brinell (HB) max
321 515 205 40 95 217
321H 515 205 40 95 217
347 515 205 40 92 201

 

Physical Properties

321/321L stainless steel 9.52*1.65 mm coiled tubing

Typical physical properties for annealed grade 321 stainless sheets of steel are given in table 3.

Table 3. Physical properties of 321-grade stainless steel in the annealed condition

Grade Density (kg/m3) Elastic Modulus (GPa) Mean Coefficient of Thermal Expansion (μm/m/°C) Thermal Conductivity (W/m.K) Specific Heat 0-100 °C (J/kg.K) Electrical Resistivity (nΩ.m)
0-100 °C 0-315 °C 0-538 °C at 100 °C at 500 °C
321 8027 193 16.6 17.2 18.6 16.1 22.2 500 720

 

Grade Specification Comparison

321/321L stainless steel 9.52*1.65 mm coiled tubing

Approximate grade comparisons for 321 stainless sheets of steel are given in table 4.

Table 4. Grade specifications for 321-grade stainless steel

Grade UNS No Old British Euronorm Swedish SS Japanese JIS
BS En No Name
321 S32100 321S31 58B, 58C 1.4541 X6CrNiTi18-10 2337 SUS 321
321H S32109 321S51 - 1.4878 X10CrNiTi18-10 - SUS 321H
347 S34700 347S31 58G 1.4550 X6CrNiNb18-10 2338 SUS 347






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