호칭	안지름		단면 치수(최소)		바깥지름 D(최대)		압축시험후 자유높이    (최대)		시험하중 kN (kgf)
	기준치수	허용차	2호 (bxt)	3호 (bxt)	2호	3호	2호	3호
2	2.1	0.25	0.9x0.5	-	4.4	-	0.85	-	0.42(43)
2.5	2.6	0.3	1.0x0.6	-	5.2	-	1	-	0.69(70)
3	3.1	0	1.1x0.7	-	5.9	-	1.2	-	1.03(105)
-3.5	3.6		1.2x0.8	-	6.6	-	1.35	-	1.37(140)
4	4.1	0.4	1.4x1.0	-	7.6		1.7	-	1.77(180)
-4.5	4.6	0	1.5x1.2	-	8.3	-	2	-	2.26(230)
5	5.1		1.7x1.3	-	9.2	-	2.2	-	2.94(300)
6	6.1		2.7x1.5	2.7x1.9	12.2	12.2	2.5	3.2	4.12(420)
-7	7.1		2.8x1.6	2.8x2.0	13.4	13.4	2.7	3.35	5.88(600)
8	8.2	0.5	3.2x2.0	3.3x2.5	15.4	15.6	3.35	4.2	7.45(760)
10	10.2	0	3.7x2.5	3.9x3.0	18.4	18.8	4.2	5	11.8(1200)
12	12.2	0.6	4.2x2.0	4.4x3.6	21.5	21.9	5	6	17.7(1800)
-14	14.2	0	4.7x3.5	4.8x4.2	24.5	24.7	5.85	7	23.5(2400)
16	16.2	0.8	5.2x4.0	5.3x4.8	28	28.2	6.7	8	32.4(3300)
-18	18.2	0	5.7x4.6	5.9x5.4	31	31.4	7.7	9	39.2(4000)
20	20.2		6.1x5.1	6.4x6.0	33.8	34.4	8.5	10	49.0(5000)
-22	22.5	1	6.8x5.6	7.1x6.8	37.7	38.3	9.35	11.3	61.8(6300)
24	24.5	0	7.1x5.9	7.6x7.2	40.3	41.3	9.85	12	71.6(7300)
-27	27.5	1.2	7.9x6.8	8.6x8.3	45.3	46.7	11.3	13.8	93.2(9500)
30	30.5	0	8.7x7.5	-	49.9	-	12.5	-	118(12000)
-33	33.5	1.4	9.5x8.2	-	54.7	-	13.7	-	147(15000)
36	36.5	0	10.2x9.0	-	59.1	-	15	-	167(17000)
-39	39.5		10.7x9.5	-	63.1	-	15.8	-	197(20000)