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EN 10028-3 P355NL1 vs GB/T 1591 Q390C

Related Material — 65% match based on chemical composition and mechanical property overlap.

EN 10028-3 P355NL1 (EN 10028-3:2017) and GB/T 1591 Q390C (GB/T 1591:2018) are both steel grades. EN 10028-3 P355NL1 is classified under Alloy Steel, while GB/T 1591 Q390C is classified under Structural Steel — a different category, which is worth noting alongside the chemistry match below. EN 10028-3 P355NL1 is typically used for flat products for pressure equipment, while GB/T 1591 Q390C is commonly used for general structure for engineering (plates, strips, bars and sections). EN 10028-3 P355NL1 is defined under European Standard (EN), originating from Europe, while GB/T 1591 Q390C is defined under Guobiao Standards (GB/T), originating from China.

As per chemical composition, EN 10028-3 P355NL1 vs GB/T 1591 Q390C is a 82.9% match. As per mechanical properties, the match is 29.2%. Combined, this makes them a related material overall at 65%.

Frequently Compared With EN 10028-3 P355NL1:
IS 1570 (Part 7) 10Mo6H IS 4367 07Cr4Mo6 IS 1570 (Part 4) 07Cr4Mo6 NF A35-565 100C6 UNI 11234 100Cr6 IS 1570 (Part 4) 103Cr4 IS 1570 (Part 4) 103Cr6 IS 1570 (Part 4) 105Cr5 IS 1570 (Part 4) 10Cr20Mo6 IS 1570 (Part 7) 10Cr36Mo10H IS 4367 10Cr9Mo10 EN 10028-2 10CrMo9-10
Match Breakdown
CHEMISTRY MATCH
82.9%
MECHANICAL MATCH
29.2%
OVERALL
65%
Specifications
Property EN 10028-3 P355NL1 GB/T 1591 Q390C
Standard EN 10028-3:2017 GB/T 1591:2018
Category Alloy Steel Structural Steel
C (%) <=0.18 <=0.20
Si (%) <=0.50 <=0.55
Mn (%) 1.10-1.70 <=1.70
P (%) <=0.025 <=0.030
S (%) <=0.008 <=0.030
Al (%) >=0.020 Not specified
N (%) <=0.012 <=0.015
Cr (%) <=0.30 <=0.30
Cu (%) <=0.30 <=0.40
Mo (%) <=0.08 <=0.10
Nb (%) <=0.05 <=0.05
Ni (%) <=0.50 <=0.50
Ti (%) <=0.03 <=0.05
V (%) <=0.10 <=0.13
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property EN 10028-3 P355NL1 GB/T 1591 Q390C
Tensile Strength 490-630 MPa 490-650 MPa
Yield Strength >=355 MPa >=390 MPa
Elongation >=22% >=21%
Condition Normalized, nominal thickness up to 16 mm Hot-rolled (as-rolled), nominal thickness or diameter up to 16 mm for yield; tensile strength for up to 100 mm; elongation longitudinal, up to 40 mm
Typical Applications
EN 10028-3 P355NL1
Flat products for pressure equipment
GB/T 1591 Q390C
General structure for engineering (plates, strips, bars and sections)
Key Differences
Can EN 10028-3 P355NL1 Be Substituted With GB/T 1591 Q390C?
EN 10028-3 P355NL1 and GB/T 1591 Q390C share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.
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EN 10028-3 P355NL1
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GB/T 1591 Q390C
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Frequently Asked Questions
What is the difference between EN 10028-3 P355NL1 and GB/T 1591 Q390C?
Different category: EN 10028-3 P355NL1 is Alloy Steel, GB/T 1591 Q390C is Structural Steel. EN 10028-3 P355NL1 specifies Al which is not specified for GB/T 1591 Q390C.
Can EN 10028-3 P355NL1 be substituted with GB/T 1591 Q390C?
EN 10028-3 P355NL1 and GB/T 1591 Q390C share some compositional similarity but differ enough that substitution should not be assumed. Review the differences above carefully, and consult the applicable standard or a metallurgist before using one in place of the other.