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B500A/B500B/B500C Rebar

B500A, B500B, and B500C are three reinforcement bar grades defined by the European standard EN 10080 (adopted by British Standard BS 4449 and many national standards). The key difference between these grades lies in their ductility and toughness, not in their strength. All grades have a nominal yield strength (Re) of 500 MPa, but they differ in requirements for fracture elongation, tensile-to-yield strength ratio, and fatigue performance to accommodate different structural and seismic demands.

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Steel Rebar

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B500A/B500B/B500C Rebar Description

Grade Selection Guide

B500A: Lowest ductility. Typically used for welded fabric or non-critical, non-structural components. Due to its performance limitations, it is not recommended for primary load-bearing members.

B500B: Standard, all-purpose grade. Offers good ductility and weldability, making it suitable for the vast majority of reinforced concrete structures. It is the preferred choice for beams, slabs, columns, foundations, and other structural elements.

B500C: High ductility grade. Provides the best plastic deformation capacity and seismic performance. It is intended for critical structures in high seismic zones (e.g., beam-column joints in moment frames, boundary elements of shear walls), structures subject to dynamic loads, or those requiring high deformation capacity. Its cost is typically higher than B500B.

Key Recommendation
For most conventional building projects, B500B reinforcement is sufficient and offers the best economic value. Engineers should prioritize B500B and only specify B500C when mandated by codes or for structures with special seismic or ductility requirements.

Technical Parameter Comparison Table

Parameter	B500A	B500B	B500C
Yield Strength Re (MPa)	≥ 500	≥ 500	≥ 500
Actual/Nominal Yield Strength Ratio (Re,act/Re,nom)	≤ 1.25	≤ 1.25	≤ 1.25
Min. Tensile/Yield Ratio (Rm/Re)	≥ 1.05	≥ 1.05	≥ 1.15 and < 1.35
Min. Fracture Elongation Agt (%)	≥ 3.0	≥ 5.0	≥ 7.5
Min. Fatigue Strength 2σad (MPa)	≥ 100	d ≤ 28mm: ≥175 d > 28mm: ≥145	d ≤ 28mm: ≥175 d > 28mm: ≥145
Common Delivery Forms	Coil, Bar, Welded Fabric, Lattice Girder	Coil, Bar, Welded Fabric	Bar (also available in coil for some producers)
Typical Surface	Smooth, Indented, Ribbed	Indented, Ribbed	Ribbed
Nominal Diameter Range (mm)	4 - 16	6 - 50	6 - 50
Dimensional Tolerance	+/- 4.5%	+/- 4.5%	+/- 4.5%
Chemical Composition	C < 0.22%, Ceq < 0.50%	C < 0.22%, Ceq < 0.50%	C < 0.22%, Ceq < 0.50%

Note: 'd' denotes bar diameter. Parameters are based on standards such as EN 10080

Scope of Application

Widely used in houses, bridges, roads, especially railways and other civil engineering.

USA	Japan	Germany		U.K.		France	Italy	Spain	Switzerland	China
AISI/SAE	JIS	W‐nr.	DIN	BS	EN	AFNOR	UNI	UNE	SS	GB
A570.36	STKM 12A	1.0038	RSt.37‐2	4360	‐	E 24‐2	‐	‐	1311	15
-	STKM 12C	-	-	40 C	-	Ne	-	-	-	-
1015	‐	1.0401	C15	080M15	‐	CC12	C15, C16	F.111	1350	15
1020	‐	1.0402	C22	050A20	2C	CC20	C20, C21	F.112	1450	20
1213	SUM22	1.0715	9SMn28	230M07	1A	S250	CF9SMn28	F.2111	1912	Y15
1213	SUM22	1.0715	9SMn28	230M07	1A	S250	CF9SMn28	11SMn28	1912	Y15
12L13	SUM22L	1.0718	9SMnPb28	‐	‐	S250Pb	CF9SMnPb28	11SMnPb28	1914	‐
‐	‐	1.0722	10SPb20	‐	‐	10PbF2	CF10Pb20	10SPb20	‐	‐
1215	‐	1.0736	9SMn36	240M07	1B	S300	CF9SMn36	12SMn35	‐	Y13
12L14	‐	1.0737	9SMnPb36	‐	‐	S300PB	CF9SMnPb36	12SMnP35	1926	‐
1015	S15C	1.1141	Ck15	080M15	32C	XC12	C16	C15K	1370	15
1025	S25C	1.1158	Ck25	‐	‐	‐	‐	‐	‐	25
A572-60	‐	1.890	StE380	4360 55	‐	‐	FeE390KG	‐	2145	‐
1035	‐	1.0501	C35	060A35	‐	CC35	C35	F.113	1550	35
1045	‐	1.0503	C45	080M46	‐	CC45	C45	F.114	1650	45
1140	‐	1.0726	35S20	212M36	8M	35MF4	‐	F210G	1957	‐
1039	‐	1.1157	40Mn4	150M36	15	35M5	‐	‐	‐	40Mn
1335	SMn438(H)	1.1167	36Mn5	‐	‐	40M5	‐	36Mn5	2120	35Mn2
1330	SCMn1	1.1170	28Mn6	150M28	14A	20M5	C28Mn	‐	‐	30Mn
1035	S35C	1.1183	Cf35	060A35	‐	XC38TS	C36	‐	1572	35Mn
1045	S45C	1.1191	Ck45	080M46	‐	XC42	C45	C45K	1672	Ck45
1050	S50C	1.1213	Cf53	060A52	‐	XC48TS	C53	‐	1674	50
1055	‐	1.0535	C55	070M55	9	‐	C55	‐	1655	55
1060	‐	1.0601	C60	080A62	43D	CC55	C60	‐	‐	60
1055	S55C	1.1203	Ck55	070M55	‐	XC55	C50	C55K	‐	55
1060	S58C	1.1221	Ck60	080A62	43D	XC60	C60	‐	1678	60Mn
1095	‐	1.1274	Ck101	060A96	‐	XC100	‐	F.5117	1870	‐
W1	SK3	1.1545	C105W1	BW1A	‐	Y105	C36KU	F.5118	1880	‐
W210	SUP4	1.1545	C105W1	BW2	‐	Y120	C120KU	F.515	2900	‐

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FAQ

Q:Does the product have quality inspection before loading?

A: Of course, all our products are strictly quality tested before packing, unqualified products will be destroyed, customers can appoint a third party to inspect the products before loading as well.

Q:Can l go to your factory to visit?

A: Of course, we welcome customers from all over the world to visit our factory

Q:How many countries you already exported to?

A: We have exported to the United States, Canada, Brazil, Chile, Colombia, Russia, Ukraine, Thailand, Myanmar, Vietnam, India, Kenya, Ghana, Somalia and other African countries. We have rich export experience, we are familiar with different market demands and can help customers avoid a lot of trouble.

Q:How long does your delivery time take?

A: Generally speaking, our delivery time is within 7-15 days, if the quantity is very large or special circumstances occur, it may be longer.

Q:lt's my first time to import steel products, can you help me with it?

A: Of course, we have agent to arrange the shipment and we will do it with you.

Q:What product information do l need to provide?

A: Please provide the grade, width, thickness, surface treatment requirements (if you have any) and the quantity you need to purchase.

Steel Rebar

PRODUCT DETAILS

B500A/B500B/B500C Rebar Description

Packing and delivery

Quality Inspection

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