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Rectangular Steel Tube

Application: Widely used in furniture,interior decoration, structure
Size: OD: 20mm*10mm ~ 400mm*300mm
Pipe Standard: ASTM A53, ASTM A500,BS EN 10219,JIS G 3466, ASTM A513, ASTM A36 S235JR,S355JR,Q235,St37,St37-2,St52,SS400, STK500,Q235B, Q345

Classification :

Structural Steel Section

+8613787191317

info@northsteelgroup.com

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Specification

◎Rectangular Steel Tube Introduction

Application:	Widely used in furniture,interior decoration, structure
Size:	OD: 20mm10mm ~ 400mm300mm
Pipe Standard:	ASTM A53, ASTM A500,BS EN 10219,JIS G 3466, ASTM A513, ASTM A36
Pipe Standard:	S235JR,S355JR,Q235,St37,St37-2,St52,SS400, STK500,Q235B, Q345
Furface:	Black bared ,can be galvanized,oiled,painted,powdered.
Packing:	Waterproof plastic bag,bundle with strip
Application:	Widely used in furniture,interior decoration, structure
Size:	OD: 20mm10mm ~ 400mm300mm

◎Rectangular Steel Tube Mechanical Properties of Material

Grade	Yield Strength	Tensile Strength	Elongation
A500.Gr.b	46 ksi	58 ksi	23%
A513.GR.B	72 ksi	87 ksi	10%

Norm		Yield Strength			Tensile Strength		Min.elogation				Min.percent properties
Acc.to EN10027/1 and IC 10	Acc.to EN10027/2	Norminal W.T.mm			Norminal W.T.mm		Longit.		Cross		Test temperature°C	Average min.impact value
		≤16	>6	>40	<3	≤3≤65	Norminal W.T.mm
			≤65	≤65			≤40	>40	>40	≤65
			≤65	≤65			≤40	≤65	≤40	≤65
S253JRH	1.0039	235	225	215	360-510	340-470	26	25	24	23	20	27
S275JOH	1.0149	275	265	255	410-580	410-560	22	21	20	19	0	27
S275J2H	1.0138	275	265	255	430-560	410-560	22	21	20	19	-20	27
S355JOH	1.0547	355	345	335	510-680	490-630	22	21	20	19	0	27
S355J2H	1.0576	355	345	335	510-680	490-630	22	21	20	19	-20	27

◎Equivalent Specification of Rect Tubing

EN 10210-1	NF A 49501 NF A 35501	DIN 17100 DIN 17123/4/5	BS 4360	UNI 7806
S235JRH	E 24-2	St 37.2	–	Fe 360 B
S275JOH	E 28-3	St 44.3 U	43 C	Fe 430 C
S275J2H	E 28-4	St 44.3 N	43 D	Fe 430 D
S355JOH	E 36-3	St 52.3 U	50 C	Fe 510 C
S355J2H	E 36-4	St 52.3 N	50 D	Fe 510 D
S275NH	–	St E 285 N	–	–
S275NLH	–	TSt E 285 N	43 EE	–
S355NH	E 355 R	St E 355 N	–	–
S355NLH	–	TSt E 355 N	50 EE	–
S460NH	E 460 R	St E 460 N	–	–
S460NLH	–	TSt E 460 N	55 EE	–

– block letter "S" means "STEEL FOR STRUCTURAL APPLICATIONS"
– the next fi gure means the minim. yield value required for wall thickness ≤16 mm
– "J2" means impact test value -20° C min. 27 joule
– block letter "H" means "HOLLOW SECTION".

Chemical composition

Grade	Element	C	Mn	P	S
ASTM A500 Gr.b	%	0.05%-0.23%	0.3%-0.6%	0.04%	0.04%

Acc.to EN10027/1	Acc.to EN10027/2	C% max (Norminal W.T.(mm)		Si% max	Mn% max	P% max	S% max	N% max
and IC 10		≤ 40		Si% max	Mn% max	P% max	S% max	N% max
S235JRH	1.0039	0.17	0.20	-	1.40	0.045	0.045	0.009
S275JOH	1.0149	0.20	0.22	-	1.50	0.040	0.040	0.009
S275J2H	1.0138	0.20	0.22	-	1.50	0.035	0.035	-
S355JOH	1.0547	0.22	0.22	0.55	1.60	0.040	0.040	0.009
S355J2H	1.0576	0.22	0.22	0.55	1.60	0.035	0.035	-

Process

Tests

◎Steel Grade of Raw Material

Scaffolding pipe raw material is steel plate. Only tested past steel plate coil are approved accepted in raw material stock. Raw material testing including chemical composition according to BS1139, physical property of tensile strength, yield strength, elongation.

◎Welding Line Testing

Scaffolding pipe welding line quality is tested according to ISO3834 and EN1090 CE requirement. While flatten testing is also essential in scaffolding pipe welding line testing.

◎Finished Scaffolding Pipe Testing

GI scaffolding pipes are tested after galvanizing, while black tube are tested after welding directly. The testing include chemical composition, physical property and flatten. Clients can get mill certificated, test report from us for each batch of material.

Packing & Delivery

Keyword:North Steel Manufacturing