Deformed Steel Rebar – HRB400, B500B, A615 Gr.60

Hot-rolled ribbed reinforcing bar for concrete buildings, bridges, foundations and infrastructure. Supplied to Chinese GB/T 1499.2 (HRB400/HRB500), British BS 4449 (B500B) or American ASTM A615 (Grade 60), black or hot-dip galvanized.

Product	Hot-rolled deformed steel bar (rebar)
Grades	HRB400, HRB400E, HRB500, BS 4449 B500B, ASTM A615 Gr.40 / Gr.60
Diameter	6 – 32 mm
Length	6 m, 9 m, 12 m, or coiled (6–12 mm)
Surface	Black (mill finish) or hot-dip galvanized (ASTM A767)
Unit weight	0.222 kg/m (6 mm) – 6.31 kg/m (32 mm)
Bundle	2 – 3 t, tied, heat-number tagged
Certificates	Mill test certificate EN 10204 3.1; SONCAP / SASO / KEBS support on request
Loading port	Tianjin / Qingdao

Grades and how they compare

Grade	Standard	Min. yield (MPa)	Min. tensile (MPa)	Common in
HRB400 / HRB400E	GB/T 1499.2	400	540	China-contracted projects in Africa & Asia
HRB500 / HRB500E	GB/T 1499.2	500	630	High-rise, heavy structures
B500B	BS 4449	500	540 (Rm/Re ≥ 1.08)	Gulf, East Africa, Commonwealth markets
Grade 60	ASTM A615	420	620	Philippines, Americas, US-designed projects
Grade 40	ASTM A615	280	420	Low-rise, stirrups

The "E" in HRB400E means the bar is for seismic use, with a tensile/yield ratio of at least 1.25 and a guaranteed maximum-force elongation (Agt) of 9%. If your structural drawings name one standard, order that standard. Do not substitute a grade with a lower yield strength without the engineer's approval.

Unit weight table

Diameter (mm)	kg/m	Bars per ton (12 m)
6	0.222	375
8	0.395	211
10	0.617	135
12	0.888	94
14	1.210	69
16	1.580	53
18	2.000	42
20	2.470	34
22	2.980	28
25	3.850	22
28	4.830	17
32	6.310	13

Rebar is sold either by actual weight or by theoretical weight. Agree which one applies before you sign the contract, because the difference is typically ±3–5%.

Galvanized rebar

In marine structures, coastal buildings, water tanks, bridge decks and car parks, chlorides from sea air or de-icing salts corrode ordinary rebar and crack the concrete. Hot-dip galvanized rebar (to ASTM A767 or ISO 14657) adds a zinc layer that delays corrosion significantly. It also tolerates handling damage far better than epoxy-coated bar. Bars can be galvanized straight, or after bending to your bar-bending schedule.

Lengths, bundles and shipping

Standard lengths of 9 m and 12 m, or 6 m for container shipping; cut-and-bend service available.
Bundles of 2–3 tons, tied with wire rod, with a tag on each bundle showing heat number, size and grade.
Coiled rebar in 6–12 mm for straightening plants.
Break-bulk shipment for large orders; 20ft containers (about 25–27 tons of 5.8 m bars) for smaller projects.

Frequently asked questions

Is HRB400 equivalent to ASTM A615 Grade 60?

They are close but not identical. HRB400 has a minimum yield strength of 400 MPa, and Grade 60 requires 420 MPa. Many engineers accept HRB400E in place of Grade 60 only with a written approval, so check your specification first.

Is B500B stronger than HRB400?

B500B has a higher minimum yield (500 MPa against 400 MPa). The closest Chinese equivalent is HRB500. If your drawings specify B500B, order B500B or HRB500E.

How many 12 mm bars are in one ton?

About 94 bars of 12 m length, because 12 mm rebar weighs 0.888 kg per metre.

Can rebar be shipped in containers?

Yes. For container loading we cut bars to 5.8 m so they fit a 20ft container, which carries about 25–27 tons. 12 m bars are shipped break-bulk or in 40ft containers subject to weight limits.