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GB/T 700 Q235B vs AS/NZS 3679.1 350

Related Material — 64.7% match based on chemical composition and mechanical property overlap.

GB/T 700 Q235B (GB/T 700:2006) and AS/NZS 3679.1 350 (AS/NZS 3679.1:2016) are both steel grades. Both fall under the Structural Steel category. GB/T 700 Q235B is typically used for structural steelwork, fabricated components, machinery parts, storage tanks, pipes, while AS/NZS 3679.1 350 is commonly used for hot-rolled structural bars and sections for primary structural beams, columns, and framing. GB/T 700 Q235B is defined under Guobiao Standards (GB/T), originating from China, while AS/NZS 3679.1 350 is defined under Australian/New Zealand Standard (AS/NZS), originating from Australia/New Zealand.

As per chemical composition, GB/T 700 Q235B vs AS/NZS 3679.1 350 is a 95.9% match. As per mechanical properties, the match is 2.5%. Combined, this makes them a related material overall at 64.7%.

Frequently Compared With GB/T 700 Q235B:
CSA G40.21 400W CSA G40.21 260W AS/NZS 3679.1 300 GOST 19281 09G2S CSA G40.21 300W CSA G40.21 350W CSA G40.21 480W ASTM A1008 SS Grade 50 CSA G40.21 400A ASTM A283C ASTM A1008 SS Grade 80 ASTM A572 Gr.65
Match Breakdown
CHEMISTRY MATCH
95.9%
MECHANICAL MATCH
2.5%
OVERALL
64.7%
Specifications
Property GB/T 700 Q235B AS/NZS 3679.1 350
Standard GB/T 700:2006 AS/NZS 3679.1:2016
Category Structural Steel Structural Steel
C (%) <=0.20 <=0.22
Si (%) <=0.35 <=0.50
Mn (%) <=1.40 <=1.70
P (%) <=0.045 <=0.040
S (%) <=0.045 <=0.040
Matched by chemical composition and mechanical properties, not a formal equivalence claim. Always verify against the applicable standard before substitution.
Mechanical Properties
Property GB/T 700 Q235B AS/NZS 3679.1 350
Tensile Strength 370-500 MPa 480-640 MPa
Yield Strength >=235 MPa 350 MPa min
Elongation >=26% 20% min
Condition Hot rolled, controlled rolled or normalized; yield up to 16 mm, elongation up to 40 mm (N/mm2 = MPa) Not specified
Typical Applications
GB/T 700 Q235B
structural steelwork, fabricated components, machinery parts, storage tanks, pipes
AS/NZS 3679.1 350
Hot-rolled structural bars and sections for primary structural beams, columns, and framing
Can GB/T 700 Q235B Be Substituted With AS/NZS 3679.1 350?
GB/T 700 Q235B and AS/NZS 3679.1 350 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.
Forms & Sizes Available on M-EX
GB/T 700 Q235B
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2600–4800 mm (102.36–188.98 in)
AS/NZS 3679.1 350
Plate → (2 listings)
Thickness: 10–10 mm (0.39–0.39 in)
Width: 1500–1500 mm (59.06–59.06 in)
Length: 2900–3200 mm (114.17–125.98 in)
On M-EX Right Now
GB/T 700 Q235B
2 active listings and RFQs →
AS/NZS 3679.1 350
2 active listings and RFQs →
Frequently Asked Questions
What is the difference between GB/T 700 Q235B and AS/NZS 3679.1 350?
Both grades share a similar composition profile; see the specification table above for the exact chemistry and mechanical property values.
Can GB/T 700 Q235B be substituted with AS/NZS 3679.1 350?
GB/T 700 Q235B and AS/NZS 3679.1 350 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.