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BS 970 (Part 3):1991 316S13 Steel: Specifications & Listings

BS 970 (Part 3):1991 316S13: 316S13 is a stainless steel bright bar grade specified in BS 970 Part 3:1991 (bright bars for general engineering purposes).

Category: Stainless Steel
Grade Details
GradeBS 970 (Part 3):1991 316S13
Standard BS 970 (Part 3):1991
ApplicationsBright cold finished bars (cold drawn, turned or precision ground) for general engineering purposes, in straight lengths; austenitic stainless and heat resisting steel (Table 18)
Equivalent / Similar Grades
Grade Standard Region Live on M-EX
IS 1570 (Part 7) 3Cr17Ni12Mo3H IS 1570 (Part 7):1992 India No activity yet
BS 970 (Part 1) 316S13 BS 970 (Part 1):1991 UK No activity yet
IS 6603 X02Cr17Ni12Mo3 IS 6603:2024 India No activity yet
EN 10088-3 X2CrNiMo17-12-3 EN 10088-3:2014 Europe No activity yet
EN 10088-1 X2CrNiMoN17-13-3 EN 10088-1:2014 Europe (CEN) No activity yet
EN 10088-3 X2CrNiMoN17-13-3 EN 10088-3:2014 Europe No activity yet
EN 10088-1 X2CrNiMo17-12-3 EN 10088-1:2014 Europe (CEN) No activity yet
ASTM A276/A276M S31603 ASTM A276/A276M:2017 USA No activity yet
IS 6603 X03Cr17Ni12Mo3 IS 6603:2024 India No activity yet
IS 6603 X02Cr18Ni14Mo3 IS 6603:2024 India No activity yet
EN 10088-1 X3CrNiMo17-13-3 EN 10088-1:2014 Europe (CEN) No activity yet
EN 10088-1 X2CrNiMo18-14-3 EN 10088-1:2014 Europe (CEN) No activity yet
EN 10088-3 X3CrNiMo17-13-3 EN 10088-3:2014 Europe No activity yet
EN 10088-3 X2CrNiMo18-14-3 EN 10088-3:2014 Europe No activity yet
JIS G4304 SUS316L JIS G4304:2021 Japan No activity yet
Grade ComparisonCompare With a Specific Grade →
Grade Standard Match
BS 970 (Part 1) 316S13 BS 970 (Part 1):1991 Strong Match
BS 970 (Part 1) 316S13 BS 970 (Part 1):1983 Strong Match
IS 6603 X02Cr17Ni12Mo3 IS 6603:2024 Strong Match
EN 10088-3 X2CrNiMo17-12-3 EN 10088-3:2014 Strong Match
EN 10088-1 X2CrNiMoN17-13-3 EN 10088-1:2014 Strong Match
EN 10088-1 X2CrNiMoN17-13-3 EN 10088-1:2023 Strong Match
EN 10088-3 X2CrNiMoN17-13-3 EN 10088-3:2014 Strong Match
EN 10088-2 X2CrNiMoN17-13-3 EN 10088-2:2014 Strong Match
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Chemical Composition (%)
C Si Mn P S Cr Mo Ni
<=0.030 <=1.0 <=2.0 <=0.045 <=0.030 16.5-18.5 2.50-3.00 11.5-14.5

More data from BS 970 (Part 3):1991

From the standard
Other composition limits
Steel group
Austenitic stainless and heat resisting steel (Table 18)
Condition of supply
Bright bars: cold drawn, turned or precision ground, in straight lengths
Maximum unless a range is stated.
Source: BS 970 (Part 3):1991, Table 18
Properties in the finally softened condition
Tensile strength Rm, min
490 MPa
Elongation, min
40 %
Rp0.2
190 MPa
Rp1.0, min
225 MPa
Sensitization period
30 min
Applicable to sections up to 160 mm softened at 1000 to 1100 deg C (Table 24, note a). For magnetic properties see option A.2. Sensitization period per clause 8.6 and option A.4.
Source: BS 970 (Part 3):1991, Table 24

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