国外无缝方矩管标准公差范围

标准 / 尺寸	外径(mm)		壁厚(mm)		长度(mm)
	尺寸	允许偏差	尺寸	允许偏差	尺寸	允许偏差
ASTM A312	[10.29 ， 48.26]	+0.40/-0.80	10.3-73 88.9-457 T/D<5% 88.9-457 T/D>5% 508 以上 T/D<5% 508 以上 T/D>5%	+20%-12.5% +22.5%12.5% +15%-12.5% +22.5%-12.5% +15% ， -12.5%		+6/-0
	(48.26,114.30]	+0.80/-0.80
	(114.30,219.08]	+1.60/-0.80
	(219.08,457.20]	+2.40/-0.80
ASTM A213	D<25.4	+0.10/-0.10	D ≤ 38.1	+20%/-0	D<50.80	+3/-0
	[25.4,38.1]	+0.15/-0.15
	(38.1,50.8)	+0.20/-0.20	D>38.1	+22%/-0	D ≥ 50.8	+5/-0
	[50.8,63.5)	+0.25/-0.25
	[63.5,76.2)	+0.30/-0.30
	[76.2,101.6]	+0.38/-0.38
	(101.6,190.5]	+0.38/-0.64
	(190.5,228.6]	+0.38/-1.14
ASTM 269	D<12.7	+0.13/-0.13		± 15%		+3.2/-0
	(12.7,38.1]			± 10%
	[38.1,88.9)	+0.25/-0.25				+4.8/-0
	[88.9,139.7)	+0.38/-0.38
	[139.7,203.2)	+0.76/-0.76
JIS G3459	D<30	+0.30/-0.30	S<2	± 20
	D ≥ 30	± 1%	S ≥ 2	± 10%
JIS G3463	D<40	+0.25/-0.25	D<40;S<2	+0.40/-0	D ≤ 50;L≤7	+7/-0
	[40,50)				D<50;L>7	长度每增加 3 米或其零数在上正允许偏差上加上 3mm ，最大 15mm
	[50,60)
	[60,80)	+0.30/-0.30	D<40;S ≥ 2	+20%/-0
	[80,100)	+0.40/-0.40
	[100,120)	+0.40/-0.60			D>50;L ≤ 7	+10/-0
	[120,160)	+0.40/-0.60	D ≥ 40	+22%/-0	D>50;L>7	与 D<50;L ≥ 7m 内容相同
	[160,200)	+0.40/-0.60
	D ≥ 200	+0.40/-1.60
DIN17456 DIN17458	D2	± 10%±0.5min	T3 T4	± 10% 0.2min ± 7.5% 0.15 min	D ≤ 40;L≤1m D≤40;L;(1-2)m D≤40;L;(2-3)m D≤40;L;(3-4)m D≤40;L;(4-8)m	+1/-0 +2/-0 +3/-0 +4/-0 +5/-0
	D3	± 0.75%±0.3min
	D4	± 0.5%±0.1min			40<D<168
					L ≤ 6m	+5/-0
					L>6m	+10/-0
ASTM A511 TABALE3	D<12.7	+0.13/-0.13		± 15%		+3.2/-0
	[12.7,38.1)			± 10%		+4.8/-0
	[38.1,88.9)	+0.25/-0.25
	[88.9,139.7)	+0.38/-0.38
	[139.7,203.2)	+0.76/-0.76
	[203.2,219.8)	+1.14/-1.14
	[219.8,323.85)	+1.57/-1.57
ASTM A511 TABALE4	D ≤ 76.2	+0.56/-0.58	S ≤ 2.77	± 16.5%		+4.76/-0
	D ≤ 76.2	0.56/-0.58	S ≤ 2.77	± 16.5%
			2.77<S ≤ 4.37	± 15%
			4.37<S5.16	± 14%
			S>5.16	± 12.5%
	(76.2,139.7]	+0.79/-0.79	S ≤ 2.77	± 16.5%
			2.77 S 4.37	± 15%
			4.37<S5.16	± 14%
			S>5.16	± 12.5%
	(139.7,203.2]	+1.19/-1.19	4.37<S 5.16	± 14%